Juniper ACX2000 Hardware Manual

Router Hardware Guide Published: 2015-01-28 Copyright © 2015, Juniper Networks, Inc.

1194 North Mathilda Avenue Sunnyvale, California 94089 USA 408-745-2000 www.juniper.net Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners. Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice. ACX2000 Universal Access Router Hardware Guide Copyright © 2015, Juniper Networks, Inc. All rights reserved. Revision History December 2012—Added the ACX2100 router. July 2012—Initial release. The information in this document is current as of the date on the title page. YEAR 2000 NOTICE Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036. END USER LICENSE AGREEMENT The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at http://www.juniper.net/support/eula.html. By downloading, installing or using such software, you agree to the terms and conditions of that EULA. Copyright © 2015, Juniper Networks, Inc. ii

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Junos OS Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . xiii Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi Part 1 ACX2000 and ACX2100 Universal Access Router Overview Chapter 1 ACX2000 and ACX2100 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ACX2000 and ACX2100 Universal Access Router Overview . . . . . . . . . . . . . . . . . . 3 ACX2000 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ACX2100 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping . . . . . . 5 ACX2000 Hardware and CLI Terminology Mapping . . . . . . . . . . . . . . . . . . . . . 5 ACX2100 Hardware and CLI Terminology Mapping . . . . . . . . . . . . . . . . . . . . . . 7 Chapter 2 ACX2000 and ACX2100 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . 9 Front Panel of an ACX2000 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Front Panel of an ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 LEDs on ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 System LED on the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 T1/E1 Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Ethernet Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 PoE Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SFP and SFP+ Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Management and Console Port LEDs on the Front Panel . . . . . . . . . . . . . . . . 14 Uplink Ports on ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . 15 T1/E1 Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Gigabit Ethernet RJ-45 Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 PoE Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Gigabit Ethernet SFP Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 10-Gigabit Ethernet SFP+ Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Cooling System and Airflow in an ACX2000 and ACX2100 Router . . . . . . . . . . . . 19 ACX2000 and ACX2100 Power Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 ACX2000 and ACX2100 Alarm Contact Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Clocking Ports on the ACX2000 and the ACX2100 Router . . . . . . . . . . . . . . . . . . 22 Chapter 3 ACX2000 and ACX2100 System Architecture Overview . . . . . . . . . . . . . . . . 25 Packet Flow on ACX Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 iii Copyright © 2015, Juniper Networks, Inc.

Chapter 4 Preparing the Site for ACX2000 and ACX2100 Router Installation . . . . . . 29 Site Preparation Checklist for ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . 29 Rack Requirements for ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . . . 30 Cabinet Requirements for ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . 31 Clearance Requirements for Airflow and Hardware Maintenance on ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 General Site Guidelines for ACX Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Chapter 5 ACX2000 and ACX2100 Router Installation Overview . . . . . . . . . . . . . . . . . 35 Installing and Connecting an ACX2000 or ACX2100 Router Overview . . . . . . . . . 35 Chapter 6 Unpacking an ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Parts Inventory (Packing List) for an ACX2000 and ACX2100 Router . . . . . . . . . . 37 Unpacking an ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Chapter 7 Installing the ACX2000 or ACX2100 Router Mounting Hardware . . . . . . . . 41 Installing the ACX2000 or ACX2100 Mounting Brackets . . . . . . . . . . . . . . . . . . . . 41 Chapter 8 Installing the ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Installing the ACX2000 or ACX2100 Router in the Rack . . . . . . . . . . . . . . . . . . . . 43 Chapter 9 Grounding and Providing Power to the ACX2000 or ACX2100 Router . . . . 45 Connecting the ACX2000 or ACX2100 Router to Earth Ground . . . . . . . . . . . . . . 45 Connecting AC Power Cords to the ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . 47 Connecting DC Power Cables to the ACX2000 or ACX2100 Router . . . . . . . . . . . 48 Chapter 10 Connecting the ACX2000 and ACX2100 Router to External Devices . . . . . 51 Connecting ACX2000 or ACX2100 Routers to Management Devices . . . . . . . . . . 51 Connecting the Router to a Network for Out-of-Band Management . . . . . . . 51 Connecting the Router to a Management Console or Auxiliary Device . . . . . . 52 Connecting ACX2000 or ACX2100 Routers to an External Alarm-Reporting Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Connecting ACX2000 or ACX2100 Routers to External Clocking Devices . . . . . . 54 Connecting 1-PPS and 10-MHz Timing Devices to the Router . . . . . . . . . . . . 54 Connecting a T1 or E1 External Clocking Device to the Router . . . . . . . . . . . . 54 Chapter 11 Configuring Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Initially Configuring the ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . 57 Part 3 Hardware Maintenance, Troubleshooting, and Replacement Procedures Chapter 12 Maintaining ACX2000 and ACX2100 Router Hardware Components . . . . 63 Routine Maintenance Procedures for the ACX2000 and ACX2100 Router . . . . . . 63 Maintaining Cables That Connect to ACX2000 or ACX2100 Network Ports . . . . . 63 Maintaining the ACX2000 and ACX2100 Uplink Ports . . . . . . . . . . . . . . . . . . . . . 64 Copyright © 2015, Juniper Networks, Inc. iv ACX2000 and ACX2100 Universal Access Router Hardware Guide

Troubleshooting Resources for ACX2000 and ACX2100 Routers . . . . . . . . . . . . . 67 Command-Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Understanding Alarm Types and Severity Classes on ACX Series Routers . . . . . . 68 Alarm Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Alarm Severity Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Verifying Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Monitoring System Log Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Chapter 14 Replacing ACX2000 and ACX2100 Hardware Components . . . . . . . . . . . . . 71 Replacing an ACX2000 or ACX2100 Console or Auxiliary Cable . . . . . . . . . . . . . . . 71 Removing an ACX2000 or ACX2100 Console or Auxiliary Cable . . . . . . . . . . . 71 Installing an ACX2000 or ACX2100 Console or Auxiliary Cable . . . . . . . . . . . 72 Replacing an ACX2000 or ACX2100 Management Ethernet Cable . . . . . . . . . . . . 72 Removing an ACX2000 or ACX2100 Management Ethernet Cable . . . . . . . . 72 Installing an ACX2000 and ACX2100 Management Ethernet Cable . . . . . . . 72 Replacing an ACX2000 or ACX2100 Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . 73 Disconnecting an ACX2000 or ACX2100 Fiber-Optic Cable . . . . . . . . . . . . . . 73 Connecting an ACX2000 or ACX2100 Fiber-Optic Cable . . . . . . . . . . . . . . . . 73 Replacing an ACX2000 or ACX2100 Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Removing an ACX2000 or ACX2100 Transceiver . . . . . . . . . . . . . . . . . . . . . . 75 Installing an ACX2000 or ACX2100 Transceiver . . . . . . . . . . . . . . . . . . . . . . . 76 Part 4 Appendixes Appendix A Safety and Regulatory Compliance Information for the ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Definition of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 General Safety Guidelines for Juniper Networks Devices . . . . . . . . . . . . . . . . 83 General Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . . . . 84 Qualified Personnel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Restricted Access Area Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Preventing Electrostatic Discharge Damage to an ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Fire Safety Requirements for Juniper Networks Devices . . . . . . . . . . . . . . . . . 87 General Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Fire Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Fire Suppression Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Installation Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . 88 Intra-Building Ports Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Installation Instructions Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Rack-Mounting Requirements and Warnings . . . . . . . . . . . . . . . . . . . . . 89 Ramp Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 ACX2000 or ACX2100 Router Chassis Lifting Guidelines . . . . . . . . . . . . . . . . 93 General Laser Safety Guidelines for Juniper Networks Devices . . . . . . . . . . . 94 v Copyright © 2015, Juniper Networks, Inc. Table of Contents

Class 1 Laser Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Class 1 LED Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Laser Beam Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . 96 Maintenance and Operational Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Battery Handling Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Jewelry Removal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Lightning Activity Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Operating Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Product Disposal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 General Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . 102 General Electrical Safety Warnings for Juniper Networks Devices . . . . . 102 General Electrical Safety Guidelines and Electrical Codes for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 In Case of an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 ACX2100 AC Power Electrical Safety Guidelines and Warnings . . . . . . . 107 ACX2000 and ACX2100 DC Power Electrical Safety Guidelines . . . . . . 108 DC Power Electrical Safety Warnings for Juniper Networks Devices . . . 109 Site Electrical Wiring Guidelines for Juniper Networks Devices . . . . . . . . 112 Agency Approvals and Compliance Statements . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Agency Approvals for ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . 113 Compliance Statements for NEBS for ACX2000 and ACX2100 Routers . . . . 115 Compliance Statements for EMC Requirements for ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 European Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Israel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Compliance Statements for Environmental Requirements for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Compliance Statements for Acoustic Noise for ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Appendix B ACX2000 and ACX2100 Router Physical Specifications . . . . . . . . . . . . . . . 119 Chassis Physical Specifications for ACX2000 and ACX2100 Routers . . . . . . . . . 119 Appendix C ACX2000 and ACX2100 Router Environmental Specifications . . . . . . . . . 121 ACX2000 and ACX2100 Router Environmental Specifications . . . . . . . . . . . . . . . 121 Appendix D Power Guidelines, Requirements, and Specifications for the ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 ACX2000 and ACX2100 Router Grounding Specifications . . . . . . . . . . . . . . . . . . 123 Grounding Points Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Grounding Cable Lug Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Grounding Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 ACX2100 AC Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 ACX2100 AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Copyright © 2015, Juniper Networks, Inc. vi ACX2000 and ACX2100 Universal Access Router Hardware Guide

Appendix E Cable and Wire Guidelines and Specifications for the ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Understanding Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion . . . . 129 Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . . . . . . 129 Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . 130 Calculating Power Budget and Power Margin for Fiber-Optic Cables . . . . . . . . . 130 Calculating Power Budget for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 131 Calculating Power Margin for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . . 131 Appendix F ACX2000 and ACX2100 Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . 133 Management Port Connector Pinout Information for ACX Series Routers . . . . . . 133 Console/Auxiliary Port Connector Pinout on ACX Series Routers . . . . . . . . . . . . . 134 USB Port Specifications for an ACX Series Router . . . . . . . . . . . . . . . . . . . . . . . . 134 Alarm Contact Port Pinouts on the ACX2000 and ACX2100 Router . . . . . . . . . . 135 Clocking Ports Specifications on the ACX2000 and the ACX2100 Router . . . . . . 137 External Clocking Port Connector Specifications . . . . . . . . . . . . . . . . . . . . . . 137 External Clocking Input Port Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Appendix G Contacting Customer Support and Returning ACX2000 and ACX2100 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Displaying ACX2000 and ACX2100 Components and Serial Numbers . . . . . . . . 139 ACX2000 and ACX2100 Chassis Serial Number Label . . . . . . . . . . . . . . . . . . . . 140 Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Returning a Hardware Component to Juniper Networks, Inc. . . . . . . . . . . . . . . . . 141 Packing the ACX Series Router for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Guidelines for Packing Router Components for Shipment . . . . . . . . . . . . . . . . . . 143 Part 5 Index Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 vii Copyright © 2015, Juniper Networks, Inc. Table of Contents

viii ACX2000 and ACX2100 Universal Access Router Hardware Guide

Part 1 ACX2000 and ACX2100 Universal Access Router Overview Chapter 1 ACX2000 and ACX2100 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 1: Front View of the ACX2000 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 2: Rear View of the ACX2000 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 3: Front View of the ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 4: Rear View of the ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 5: ACX2000 Interface Port Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 6: ACX2100 Interface Port Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Chapter 2 ACX2000 and ACX2100 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 7: Front Panel of the ACX2000 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 8: Front Panel of the AC-Powered ACX2100 Router . . . . . . . . . . . . . . . . . . . 11 Figure 9: Front Panel of the DC-Powered ACX2100 Router . . . . . . . . . . . . . . . . . . . 12 Figure 10: Cooling System and Airflow in an ACX2000 and ACX2100 Router . . . . 19 Figure 11: Sample Output Alarm-Reporting Device . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 12: Sample Input Alarm-Reporting Device . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Chapter 3 ACX2000 and ACX2100 System Architecture Overview . . . . . . . . . . . . . . . . 25 Figure 13: ACX Series Router Packet Forwarding and Data Flow . . . . . . . . . . . . . . 25 Figure 14: ACX Series Router Packet Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Part 2 Setting Up the ACX2000 and ACX2100 Router Chapter 4 Preparing the Site for ACX2000 and ACX2100 Router Installation . . . . . . 29 Figure 15: ACX2000 and ACX2100 Chassis Dimensions and Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Chapter 7 Installing the ACX2000 or ACX2100 Router Mounting Hardware . . . . . . . . 41 Figure 16: Installing the Mounting Brackets to the Front of the ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Figure 17: Installing the Mounting Brackets to the Rear of the ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Chapter 8 Installing the ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Figure 18: Installing the Front-Mounted Router in the Rack . . . . . . . . . . . . . . . . . . 44 Chapter 9 Grounding and Providing Power to the ACX2000 or ACX2100 Router . . . . 45 Figure 19: Grounding Points on the ACX2000 and ACX2100 Router . . . . . . . . . . . 46 Figure 20: Connecting AC Power to the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Figure 21: Connecting DC Power to the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Chapter 10 Connecting the ACX2000 and ACX2100 Router to External Devices . . . . . 51 ix Copyright © 2015, Juniper Networks, Inc.

Figure 23: Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Figure 24: Routing Engine Console and Auxiliary Cable Connector . . . . . . . . . . . . 52 Figure 25: Auxiliary and Console Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Part 3 Hardware Maintenance, Troubleshooting, and Replacement Procedures Chapter 14 Replacing ACX2000 and ACX2100 Hardware Components . . . . . . . . . . . . . 71 Figure 26: Ethernet Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Figure 27: Ethernet Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Figure 28: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in an ACX Series Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Figure 29: Removing Transceivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Part 4 Appendixes Appendix A Safety and Regulatory Compliance Information for the ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Figure 30: ESD Point on ACX2000 and ACX2100 Routers . . . . . . . . . . . . . . . . . . . 87 Figure 31: Placing a Component into an Electrostatic Bag . . . . . . . . . . . . . . . . . . . 87 Appendix D Power Guidelines, Requirements, and Specifications for the ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Figure 32: Grounding Points on the ACX2000 and ACX2100 Router . . . . . . . . . . 124 Figure 33: Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Appendix G Contacting Customer Support and Returning ACX2000 and ACX2100 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Figure 34: Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Figure 35: ACX2000 and ACX2100 Chassis Serial Number Label . . . . . . . . . . . . 140 Copyright © 2015, Juniper Networks, Inc. x ACX2000 and ACX2100 Universal Access Router Hardware Guide

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Table 1: Notice Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv Table 2: Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv Part 1 ACX2000 and ACX2100 Universal Access Router Overview Chapter 1 ACX2000 and ACX2100 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Table 3: CLI Equivalents of Terms Used in Documentation for ACX2000 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 4: CLI Equivalents of Terms Used in Documentation for ACX2100 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Chapter 2 ACX2000 and ACX2100 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . 9 Table 5: System LED on the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 6: T1/E1 Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 7: Ethernet Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 8: PoE Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 9: SFP and SFP+ Link LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 10: Management and Console LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 11: T1/E1 Port Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 12: RJ-45 Port Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Table 13: PoE Port Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 14: Gigabit Ethernet SFP Port Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 15: Gigabit Ethernet SFP Port Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Table 16: Power Consumed by ACX2000 and ACX2100 Routers . . . . . . . . . . . . . 20 Table 17: Alarm Relay Contact Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Part 2 Setting Up the ACX2000 and ACX2100 Router Chapter 4 Preparing the Site for ACX2000 and ACX2100 Router Installation . . . . . . 29 Table 18: Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Table 19: Rack Requirements and Specifications for the Router . . . . . . . . . . . . . . . 31 Table 20: Cabinet Requirements and Specifications for the ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Chapter 6 Unpacking an ACX2000 or ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 21: Parts List for an ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . 37 Part 3 Hardware Maintenance, Troubleshooting, and Replacement Procedures Chapter 13 Troubleshooting ACX2000 and ACX2100 Hardware Components . . . . . . . 67 xi Copyright © 2015, Juniper Networks, Inc.

Table 23: Alarm Output Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Part 4 Appendixes Appendix B ACX2000 and ACX2100 Router Physical Specifications . . . . . . . . . . . . . . . 119 Table 24: Physical Specifications of the ACX2000 and ACX2100 Router Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Appendix C ACX2000 and ACX2100 Router Environmental Specifications . . . . . . . . . 121 Table 25: Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Appendix D Power Guidelines, Requirements, and Specifications for the ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Table 26: AC Power System Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . 125 Table 27: AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Table 28: DC Power Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Appendix E Cable and Wire Guidelines and Specifications for the ACX2000 and ACX2100 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Table 29: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . . 131 Appendix F ACX2000 and ACX2100 Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . 133 Table 30: Management Port Connector Pinout Information . . . . . . . . . . . . . . . . . 133 Table 31: Connector Pinout for the Console/Auxiliary Port . . . . . . . . . . . . . . . . . . 134 Table 32: Alarm Contact Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 Table 33: External Clocking Input Port Connector Pinouts . . . . . . . . . . . . . . . . . . 137 Copyright © 2015, Juniper Networks, Inc. xii ACX2000 and ACX2100 Universal Access Router Hardware Guide

• Junos OS Documentation and Release Notes on page xiii • Documentation Conventions on page xiii • Documentation Feedback on page xv • Requesting Technical Support on page xvi Junos OS Documentation and Release Notes For a list of related Junos OS documentation, see http://www.juniper.net/techpubs/. If the information in the latest release notes differs from the information in the documentation, follow the Junos OS Release Notes. To obtain the most current version of all Juniper Networks ® technical documentation, see the product documentation page on the Juniper Networks website at http://www.juniper.net/techpubs/. Documentation Conventions Table 1 on page xiv defines the notice icons used in this guide. xiii Copyright © 2015, Juniper Networks, Inc.

Description Meaning Icon Indicates important features or instructions. Informational note Indicates a situation that might result in loss of data or hardware damage. Caution Alerts you to the risk of personal injury or death. Warning Alerts you to the risk of personal injury from a laser. Laser warning Indicates helpful information. Tip Alerts you to a recommended use or implementation. Best practice Table 2 on page xiv defines the text and syntax conventions used in this guide. Table 2: Text and Syntax Conventions Examples Description Convention To enter configuration mode, type the configure command: user@host> configure Represents text that you type. Bold text like this user@host> show chassis alarms No alarms currently active Represents output that appears on the terminal screen. Fixed-width text like this • A policy term is a named structure that defines match conditions and actions. • Junos OS CLI User Guide • RFC 1997, BGP Communities Attribute • Introduces or emphasizes important new terms. • Identifies guide names. • Identifies RFC and Internet draft titles. Italic text like this Configure the machine’s domain name: [edit] root@# set system domain-name domain-name Represents variables (options for which you substitute a value) in commands or configuration statements. Italic text like this Copyright © 2015, Juniper Networks, Inc. xiv ACX2000 and ACX2100 Universal Access Router Hardware Guide

Examples Description Convention • To configure a stub area, include the stub statement at the [edit protocols ospf area area-id] hierarchy level. • The console port is labeled CONSOLE. Represents names of configuration statements, commands, files, and directories; configuration hierarchy levels; or labels on routing platform components. Text like this stub ; Encloses optional keywords or variables. < > (angle brackets) broadcast | multicast (string1 | string2 | string3) Indicates a choice between the mutually exclusive keywords or variables on either side of the symbol. The set of choices is often enclosed in parentheses for clarity. | (pipe symbol) rsvp { # Required for dynamic MPLS only Indicates a comment specified on the same line as the configuration statement to which it applies. # (pound sign) community name members [ community-ids ] Encloses a variable for which you can substitute one or more values. [ ] (square brackets) [edit] routing-options { static { route default { nexthop address; retain; } } } Identifies a level in the configuration hierarchy. Indention and braces ( { } ) Identifies a leaf statement at a configuration hierarchy level. ; (semicolon) GUI Conventions • In the Logical Interfaces box, select All Interfaces. • To cancel the configuration, click Cancel. Represents graphical user interface (GUI) items you click or select. Bold text like this In the configuration editor hierarchy, select Protocols>Ospf. Separates levels in a hierarchy of menu selections. > (bold right angle bracket) Documentation Feedback We encourage you to provide feedback, comments, and suggestions so that we can improve the documentation. You can provide feedback by using either of the following methods: • Online feedback rating system—On any page at the Juniper Networks Technical Documentation site at http://www.juniper.net/techpubs/index.html, simply click the stars to rate the content, and use the pop-up form to provide us with information about your experience. Alternately, you can use the online feedback form at https://www.juniper.net/cgi-bin/docbugreport/. xv Copyright © 2015, Juniper Networks, Inc. About the Documentation

Requesting Technical Support Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC). If you are a customer with an active J-Care or JNASC support contract, or are covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC. • JTAC policies—For a complete understanding of our JTAC procedures and policies, review the JTAC User Guide located at http://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf. • Product warranties—For product warranty information, visit http://www.juniper.net/support/warranty/. • JTAC hours of operation—The JTAC centers have resources available 24 hours a day, 7 days a week, 365 days a year. Self-Help Online Tools and Resources For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called the Customer Support Center (CSC) that provides you with the following features: • Find CSC offerings: http://www.juniper.net/customers/support/ • Search for known bugs: http://www2.juniper.net/kb/ • Find product documentation: http://www.juniper.net/techpubs/ • Find solutions and answer questions using our Knowledge Base: http://kb.juniper.net/ • Download the latest versions of software and review release notes: http://www.juniper.net/customers/csc/software/ • Search technical bulletins for relevant hardware and software notifications: http://kb.juniper.net/InfoCenter/ • Join and participate in the Juniper Networks Community Forum: http://www.juniper.net/company/communities/ • Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/ To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool: https://tools.juniper.net/SerialNumberEntitlementSearch/ Opening a Case with JTAC You can open a case with JTAC on the Web or by telephone. • Use the Case Management tool in the CSC at http://www.juniper.net/cm/. • Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico). Copyright © 2015, Juniper Networks, Inc. xvi ACX2000 and ACX2100 Universal Access Router Hardware Guide

http://www.juniper.net/support/requesting-support.html. xvii Copyright © 2015, Juniper Networks, Inc. About the Documentation

xviii ACX2000 and ACX2100 Universal Access Router Hardware Guide

Router Overview • ACX2000 and ACX2100 Router Description on page 3 • ACX2000 and ACX2100 Hardware Components on page 9 • ACX2000 and ACX2100 System Architecture Overview on page 25 1 Copyright © 2015, Juniper Networks, Inc.

2 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Description • ACX2000 and ACX2100 Universal Access Router Overview on page 3 • ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping on page 5 ACX2000 and ACX2100 Universal Access Router Overview The ACX2000 and ACX2100 Universal Access Routers are principally designed to provide superior management for rapid provisioning to the access network. The ACX Series routers support rich Gigabit Ethernet and 10-Gigabit Ethernet capabilities for uplink, along with support for legacy interfaces and Gigabit Ethernet interfaces for radio and NodeB connectivity in a compact form factor that is environmentally hardened and passively cooled. Seamless, end-to-end MPLS can be used to address legacy and emerging requirements to provide the foundation for a converged network that utilizes the same mobile backhaul infrastructure for business or residential services. The ACX Series router is a single-board router with a built-in Routing Engine and one Packet Forwarding Engine. Because there is no switching fabric, the single Packet Forwarding Engine takes care of both ingress and egress packet forwarding: • Routing Engine—Provides Layer 3 routing services and network management. • Packet Forwarding Engine—Performs Layer 2 and Layer 3 packet switching, route lookups, and packet forwarding. The ACX Series router is powered by Junos OS, supporting extensive L2 and L3 features, IP and MPLS with traffic engineering, rich network management, fault management, service monitoring and Operation, Administration, and Maintenance (OAM) capabilities, and an open software development kit (SDK) system that allows providers to customize and integrate operations with their own management systems. For a list of related Junos OS documentation, see http://www.juniper.net/techpubs/software/junos/. As part of the mobile backhaul, the ACX Series router at the cell site and the MX Series router at the aggregation layer provide comprehensive end-to-end Ethernet, MPLS, and OAM features with the one Junos OS running on both platforms. 3 Copyright © 2015, Juniper Networks, Inc.

can be stacked in a single floor-to-ceiling rack for increased port density per unit of floor space. The chassis is a rigid sheet metal structure that houses all the other router components. The chassis measures 1.75 in. (4.45 cm) high, 9.4 in. (24 cm) deep, and 17.5 in. (44.5 cm) wide. The outer edges of the mounting brackets extend the width to 19 in. (48 cm) (from the front-mounting brackets to the rear of the chassis). The chassis installs in standard 300-mm deep (or larger) enclosed cabinets, 19-in. equipment racks, or telco open-frame racks. • ACX2000 Router Description on page 4 • ACX2100 Router Description on page 4 ACX2000 Router Description The ACX2000 router contains sixteen T1/E1 ports, six Gigabit Ethernet ports, and two PoE ports. The ACX2000 router also supports installation of two Gigabit Ethernet SFP transceivers and two 10-Gigabit Ethernet SFP+ transceivers. The ACX2000 router has one “pseudo” Flexible PIC Concentrator (FPC 0), and four “pseudo” PICs (PIC 0 through 3). Figure 1 on page 4 shows the front view of the ACX2000 router. Figure 2 on page 4 shows the rear view. Figure 1: Front View of the ACX2000 Router g006402 ACX2000 0/0/12 0/0/13 0/0/14 0/0/4 0/0/5 0/0/6 0/0/7 0/0/15 0/0/8 0/0/9 0/0/10 0/0/11 0/1/0 0/1/1 0/1/2 0/1/3 POE 0/1/4 0/1/5 0/1/6 0/1/7 POE EXT REF CLK IN GE GE XE Figure 2: Rear View of the ACX2000 Router g006403 ACX2100 Router Description The ACX2100 router contains sixteen T1/E1 ports, and four Gigabit Ethernet ports. The ACX2100 router also contains two ports for installing Gigabit Ethernet SFP transceivers and two ports for installing 10-Gigabit Ethernet SFP+ transceivers. The ports labeled COMBO PORTS provide an additional four copper Gigabit Ethernet ports or four Gigabit Ethernet SFP ports. You can use only one set of combination ports at a time. The ACX2100 router has two “pseudo” Flexible PIC Concentrators (FPC 0 and FPC 1), and four “pseudo” PICs (PIC 0 through 3). Copyright © 2015, Juniper Networks, Inc. 4 ACX2000 and ACX2100 Universal Access Router Hardware Guide

shows the rear view. Figure 3: Front View of the ACX2100 Router g017844 Figure 4: Rear View of the ACX2100 Router g006403 Related Documentation ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping on page 5 • • Front Panel of an ACX2000 Router on page 9 • Front Panel of an ACX2100 Router on page 10 ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping • ACX2000 Hardware and CLI Terminology Mapping on page 5 • ACX2100 Hardware and CLI Terminology Mapping on page 7 ACX2000 Hardware and CLI Terminology Mapping Table 3 on page 5 describes the hardware terms used in ACX2000 router documentation and the corresponding terms used in the Junos OS command line interface (CLI). Figure 5 on page 6 shows the port locations of the interfaces. Table 3: CLI Equivalents of Terms Used in Documentation for ACX2000 Routers Additional Information Item in Documentation Value (as displayed in the CLI) Description (as displayed in the CLI) Hardware Item (as displayed in the CLI) “Chassis Physical Specifications for ACX2000 and ACX2100 Routers” on page 119 Router chassis – ACX2000 Chassis Interface Naming Conventions Used in the Junos OS Operational Commands The router does not have actual FPCs. In this case, FPC refers to the router itself. Value of n is always 0. Abbreviated name of the Flexible PIC Concentrator (FPC) FPC (n) 5 Copyright © 2015, Juniper Networks, Inc. Chapter 1: ACX2000 and ACX2100 Router Description

Additional Information Item in Documentation Value (as displayed in the CLI) Description (as displayed in the CLI) Hardware Item (as displayed in the CLI) Interface Naming Conventions Used in the Junos OS Operational Commands The router does not have actual PIC devices; see entries for PIC 0 through PIC 3 for the equivalent item on the router. n is a value in the range of 0–3. Abbreviated name of the Physical Interface Card (PIC) PIC (n) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in network ports on the front panel of the router PIC 0 16x T1/E1 (RJ-48) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in network ports on the front panel of the router PIC 1 One of the following: • 6x 1GE (RJ-45) • 2x 1GE (POE RJ-45) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in uplink ports on the front panel of the router PIC 2 2x 1GE (SFP) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in uplink ports on the front panel of the router PIC 3 2x 10GE (SFP+) “Uplink Ports on ACX2000 and ACX2100 Routers” on page 15 Optical transceivers n is a value equivalent to the number of the port in which the transceiver is installed. Abbreviated name of the transceiver Xcvr (n) “ACX2000 and ACX2100 Power Overview” on page 19 DC power supply Value of n is always 0. Built-in power supply Power supply (n) “Cooling System and Airflow in an ACX2000 and ACX2100 Router” on page 19 Fan – Fan NOTE: ACX2000 routers are fanless models. Fan Figure 5: ACX2000 Interface Port Mapping ACX2000 MGMT SYS 0 1 CONSOLE/AUX ALARM 1PPS 10MHz IN OUT IN OUT T1/E1 0/0/4 0/0/12 0/0/5 0/0/13 0/0/6 0/0/14 0/0/7 0/0/15 0/0/0 0/0/8 0/0/1 0/0/9 0/0/2 0/0/10 0/0/3 0/0/11 0/1/0 0/1/4 0/1/1 0/1/5 0/1/2 0/1/6 0/1/3 POE 0/1/7 POE GE 0/2/0 0/2/1 0/3/0 0/3/1 g006414 EXT REF CLK IN GE XE FPC 0, PIC 2 GE 0/2/0-0/2/1 FPC 0, PIC 0 T1/E1 0/0/0-0/0/15 FPC 0, PIC 1 GE 0/1/0-0/1/7 FPC 0, PIC 3 XE 0/3/0-0/3/1 Copyright © 2015, Juniper Networks, Inc. 6 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Table 4 on page 7 describes the hardware terms used in ACX2100 router documentation and the corresponding terms used in the Junos OS command line interface (CLI). Figure 6 on page 8 shows the port locations of the interfaces. Table 4: CLI Equivalents of Terms Used in Documentation for ACX2100 Routers Additional Information Item in Documentation Value (as displayed in the CLI) Description (as displayed in the CLI) Hardware Item (as displayed in the CLI) “Chassis Physical Specifications for ACX2000 and ACX2100 Routers” on page 119 Router chassis – ACX2100 Chassis Interface Naming Conventions Used in the Junos OS Operational Commands The router does not have actual FPCs. In this case, FPC refers to the router itself. n is a value in the range of 0–1. Abbreviated name of the Flexible PIC Concentrator (FPC) FPC (n) Interface Naming Conventions Used in the Junos OS Operational Commands The router does not have actual PIC devices; see entries for PIC 0 through PIC 3 for the equivalent item on the router. n is a value in the range of 0–3. Abbreviated name of the Physical Interface Card (PIC) PIC (n) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in network ports on the front panel of the router PIC 0 on FPC 0 16x T1/E1 (RJ-48) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in network ports on the front panel of the router PIC 0 on FPC 1 4x 1GE (RJ-45) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in uplink ports on the front panel of the router PIC 1 on FPC 1 One of the following: • 4x 1GE (RJ-45) • 4x 1GE (SFP) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in uplink ports on the front panel of the router PIC 2 on FPC 1 2x 1GE (SFP) “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Built-in uplink ports on the front panel of the router PIC 3 on FPC 1 2x 10GE (SFP+) “Uplink Ports on ACX2000 and ACX2100 Routers” on page 15 Optical transceivers n is a value equivalent to the number of the port in which the transceiver is installed. Abbreviated name of the transceiver Xcvr (n) 7 Copyright © 2015, Juniper Networks, Inc. Chapter 1: ACX2000 and ACX2100 Router Description

Additional Information Item in Documentation Value (as displayed in the CLI) Description (as displayed in the CLI) Hardware Item (as displayed in the CLI) “ACX2000 and ACX2100 Power Overview” on page 19 AC or DC power supply Value of n is always 0. Built-in power supply Power supply (n) “Cooling System and Airflow in an ACX2000 and ACX2100 Router” on page 19 Fan – Fan NOTE: ACX2100 routers are fanless models. Fan Figure 6: ACX2100 Interface Port Mapping g017849 ACX2100 MGMT CONSOLE/AUX SYS 0 1 EXT REF CLK IN ALARM OUT IN IN OUT 0/0/8 0/0/0 0/0/9 0/0/1 0/0/10 0/0/2 0/0/11 0/0/3 0/0/12 0/0/4 0/0/13 0/0/5 0/0/6 0/0/14 0/0/7 0/0/15 1/0/0 1/0/2 1/0/1 1/1/1 1/1/0 1/0/3 1/1/2 GE 1/1/3 COMBO PORTS XE 1/3/0 1/3/1 T1/E1 1PPS 10MHz GE 1/1/0 1/1/1 1/2/0 1/1/2 1/1/3 1/2/1 FPC 0, PIC 0 T1/E1 0/0/0-0/0/15 FPC 1, PIC 0 GE 1/0/0-1/0/3 FPC 1, PIC 1 GE 1/1/0-1/1/3 FPC 1, PIC 2 GE 1/2/0-1/2/1 FPC 1, PIC 3 XE 1/3/0-1/3/1 Related Documentation • ACX2000 and ACX2100 Universal Access Router Overview on page 3 Copyright © 2015, Juniper Networks, Inc. 8 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Components • Front Panel of an ACX2000 Router on page 9 • Front Panel of an ACX2100 Router on page 10 • LEDs on ACX2000 and ACX2100 Routers on page 12 • Uplink Ports on ACX2000 and ACX2100 Routers on page 15 • Cooling System and Airflow in an ACX2000 and ACX2100 Router on page 19 • ACX2000 and ACX2100 Power Overview on page 19 • ACX2000 and ACX2100 Alarm Contact Port on page 20 • Clocking Ports on the ACX2000 and the ACX2100 Router on page 22 Front Panel of an ACX2000 Router The front panel of an ACX2000 router consists of the following components (see Figure 7 on page 10): • Chassis status LED labeled SYS • DC power terminals • Two USB ports for upgrading Junos OS • Management Ethernet port labeled MGMT • Console or auxiliary port labeled CONSOLE/AUX • Alarm contact port labeled ALARM—accepts a DE-15 alarm cable • External clocking input port labeled EXT REF CLK IN • External clocking ports supporting 1PPS and 10MHz input and output • Network ports and corresponding status LEDs: • Sixteen T1/E1 ports labeled 0/0/0 through 0/0/15 • Six Gigabit Ethernet RJ-45 ports labeled 0/1/0 through 0/1/2 and 0/1/4 through 0/1/6 9 Copyright © 2015, Juniper Networks, Inc.

electrical current to devices—such as IP phones, wireless access points, and security cameras—through network cables. These ports comply with IEEE 802.3af (PoE) and IEEE 802.3at (PoE+). • Two Gigabit Ethernet (GE) ports labeled 0/2/0 and 0/2/1 that accept SFP transceivers • Two 10-Gigabit Ethernet (XE) ports labeled 0/3/0 and 0/3/1 that accept SFP+ transceivers Figure 7: Front Panel of the ACX2000 Router ACX2000 MGMT SYS 0 1 CONSOLE/AUX ALARM 1PPS 10MHz IN OUT IN OUT T1/E1 0/0/4 0/0/12 0/0/5 0/0/13 0/0/6 0/0/14 0/0/7 0/0/15 0/0/0 0/0/8 0/0/1 0/0/9 0/0/2 0/0/10 0/0/3 0/0/11 0/1/0 0/1/4 0/1/1 0/1/5 0/1/2 0/1/6 0/1/3 POE 0/1/7 POE GE 0/2/0 0/2/1 0/3/0 0/3/1 g006412 EXT REF CLK IN GE XE 1 2 3 4 13 5 9 10 14 7 6 8 11 12 8— 1— 10-Gigabit Ethernet SFP+ ports DC terminals 9— 2— Gigabit Ethernet SFP ports Management Ethernet port 10— 3— External clocking ports Console or auxiliary port 11— 4— External clocking input port Alarm contact port 12— 5— USB ports T1/E1 and RJ-45 Gigabit Ethernet network ports 13— 6— System LED PoE Gigabit Ethernet ports 14— 7— Grounding terminals ESD point Related Documentation ACX2000 and ACX2100 Universal Access Router Overview on page 3 • • ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping on page 5 • LEDs on ACX2000 and ACX2100 Routers on page 12 Front Panel of an ACX2100 Router The front panel of an ACX2100 router consists of the following components (see Figure 8 on page 11 and Figure 9 on page 12): • Chassis status LED labeled SYS • AC power inlets or DC terminals • Two USB ports for upgrading Junos OS • Management Ethernet port labeled MGMT • Console or auxiliary port labeled CONSOLE/AUX • Alarm contact port labeled ALARM—accepts a DE-15 alarm cable Copyright © 2015, Juniper Networks, Inc. 10 ACX2000 and ACX2100 Universal Access Router Hardware Guide

• External clocking ports supporting 1PPS and 10MHz input and output • Network ports and corresponding status LEDs: • Sixteen T1/E1 ports labeled 0/0/0 through 0/0/15 • Four Gigabit Ethernet (GE) ports labeled 1/0/0 through 1/0/3 • Combination (COMBO) ports labeled 1/1/0 through 1/1/3, either: • Four Gigabit Ethernet RJ-45 ports • Four Gigabit Ethernet SFP ports • Two Gigabit Ethernet (GE) ports labeled 1/2/0 through 1/2/1 that accept SFP transceivers • Two 10-Gigabit Ethernet (XE) ports labeled 1/3/0 and 1/3/1 that accept SFP+ transceivers Figure 8: Front Panel of the AC-Powered ACX2100 Router g017846 ACX2100 MGMT CONSOLE/AUX SYS 0 1 EXT REF CLK IN ALARM OUT IN IN OUT 0/0/8 0/0/0 0/0/9 0/0/1 0/0/10 0/0/2 0/0/11 0/0/3 0/0/12 0/0/4 0/0/13 0/0/5 0/0/6 0/0/14 0/0/7 0/0/15 1/0/0 1/0/2 1/0/1 1/1/1 1/1/0 1/0/3 1/1/2 GE 1/1/3 COMBO PORTS XE 1/3/0 1/3/1 T1/E1 1PPS 10MHz GE 1/1/0 1/1/1 1/2/0 1/1/2 1/1/3 1/2/1 5 4 12 15 1 2 14 13 3 10 8 9 7 11 6 9— 1— Ten-Gigabit Ethernet SFP+ ports AC inlets 10— 2— Gigabit Ethernet SFP ports Management Ethernet port 11— 3— Combination Gigabit Ethernet SFP ports Console or auxiliary port 12— 4— External clocking ports Alarm contact port 13— 5— External clocking input port T1/E1 network ports 14— 6— USB ports Gigabit Ethernet network ports 15— 7— System LED Combination Gigabit Ethernet RJ-45 ports 8—ESD point 11 Copyright © 2015, Juniper Networks, Inc. Chapter 2: ACX2000 and ACX2100 Hardware Components

g017845 ACX2100 MGMT CONSOLE/AUX SYS 0 1 EXT REF CLK IN ALARM OUT IN IN OUT 0/0/8 0/0/0 0/0/9 0/0/1 0/0/10 0/0/2 0/0/11 0/0/3 0/0/12 0/0/4 0/0/13 0/0/5 0/0/6 0/0/14 0/0/7 0/0/15 1/0/0 1/0/2 1/0/1 1/1/1 1/1/0 1/0/3 1/1/2 GE 1/1/3 COMBO PORTS XE 1/3/0 1/3/1 T1/E1 1PPS 10MHz GE 1/1/0 1/1/1 1/2/0 1/1/2 1/1/3 1/2/1 12 10 8 9 5 4 13 1 2 11 14 3 7 6 16 15 9— 1— Ten-Gigabit Ethernet SFP+ ports DC terminals 10— 2— Gigabit Ethernet SFP ports Management Ethernet port 11— 3— Combination Gigabit Ethernet SFP ports Console or auxiliary port 12— 4— External clocking ports Alarm contact port 13— 5— External clocking input port T1/E1 network ports 14— 6— USB ports Gigabit Ethernet network ports 15— 7— System LED Combination Gigabit Ethernet RJ-45 ports 16— 8— Grounding terminals ESD point Related Documentation ACX2000 and ACX2100 Universal Access Router Overview on page 3 • • ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping on page 5 • LEDs on ACX2000 and ACX2100 Routers on page 12 LEDs on ACX2000 and ACX2100 Routers Unless otherwise specified, the information about LEDs applies to both ACX2000 and ACX2100 routers. • System LED on the Front Panel on page 12 • T1/E1 Port LEDs on page 13 • Ethernet Port LEDs on page 13 • PoE Port LEDs on page 14 • SFP and SFP+ Port LEDs on page 14 • Management and Console Port LEDs on the Front Panel on page 14 System LED on the Front Panel One bicolor LED labeled SYS indicates the status of the router. Table 5 on page 13 describes the system LED in more detail. Copyright © 2015, Juniper Networks, Inc. 12 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Description State Color Label Router is transitioning online. Blinking Green SYS Router is functioning normally. On steadily Router has reported an alarm. Blinking Red Router has failed. On steadily T1/E1 Port LEDs The front panel has sixteen T1/E1 ports, each with one pair of port LEDs. Table 6 on page 13 describes the LEDs in more detail. Table 6: T1/E1 Port LEDs Description Color Location Name Online with no alarms or failures. Green Left Link Active with a local alarm; router has detected a failure. Red Not enabled. – Online with alarms for remote failures. Yellow Right Link (remote alarms) Ethernet Port LEDs The front panel of the ACX2000 router has six Gigabit Ethernet RJ-45 ports, and the ACX2100 router has eight Gigabit Ethernet RJ-45 ports, each with one pair of port LEDs. Table 7 on page 13 describes the LEDs in more detail. Table 7: Ethernet Port LEDs Description State Color Location Name Link is online. On Green Left Link No link. Off – The port is receiving data. Blinking Green Right RX The port is not receiving data. Off – 13 Copyright © 2015, Juniper Networks, Inc. Chapter 2: ACX2000 and ACX2100 Hardware Components

The front panel of the ACX2000 router has two PoE Gigabit Ethernet ports, each with one pair of port LEDs. Table 8 on page 14 describes the LEDs in more detail. Table 8: PoE Port LEDs Description State Color Location Name Link is online. On Green Left Link No link. Off – The port is receiving data. Blinking Green Right RX The port is not receiving data. Off – SFP and SFP+ Port LEDs The front panel has Gigabit Ethernet SFP ports and 10-Gigabit Ethernet SFP+ ports, each with one pair of port LEDs. Table 9 on page 14 describes the LEDs in more detail. Table 9: SFP and SFP+ Link LEDs Description State Color Location Name Link is online. On Green Left Link No link. Off – The port is receiving data. Blinking Green Right RX The port is not receiving data. Off – Management and Console Port LEDs on the Front Panel Two RJ-45 ports, labeled MGMT and CONSOLE/AUX, each have a pair of LEDs that display the status of the port. Table 10 on page 14 describes the LEDs in more detail. Table 10: Management and Console LEDs Description State Color Location Name Link is online. On Green Left Link/Activity Indicates link activity. Blinking Yellow No link. Off – Copyright © 2015, Juniper Networks, Inc. 14 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Description State Color Location Name The port is receiving data. Blinking Green Right RX The port is not receiving data. Off – Related Documentation Troubleshooting Resources for ACX2000 and ACX2100 Routers on page 67 • • Front Panel of an ACX2000 Router on page 9 • Front Panel of an ACX2100 Router on page 10 • Uplink Ports on ACX2000 and ACX2100 Routers on page 15 Uplink Ports on ACX2000 and ACX2100 Routers Unless otherwise specified, the information about uplink ports applies to both ACX2000 and ACX2100 routers. • T1/E1 Ports on page 15 • Gigabit Ethernet RJ-45 Ports on page 16 • PoE Ports on page 17 • Gigabit Ethernet SFP Ports on page 17 • 10-Gigabit Ethernet SFP+ Ports on page 18 T1/E1 Ports The router has sixteen T1/E1 ports located on the front panel. Table 11 on page 15 describes the ports in more detail. Table 11: T1/E1 Port Features Description Feature E1: 2.048 Mbps per channel T1: 1.544 Mbps per channel Line rate TDM (SAToP) mode ATM PWE3/ATM IMA Mode Encapsulation Superframe (D4) Extended superframe (ESF) Framed clear channel Framing 15 Copyright © 2015, Juniper Networks, Inc. Chapter 2: ACX2000 and ACX2100 Hardware Components

Description Feature T1/E1 T1 FDL CSU BERT JIT Diagnostic features Category 5 shielded twisted pair Cable 100-ohm RJ-48 connector Connector 0/0/0 through 0/0/15 Port numbering (hardware) T1 framing (default): ct1-0/0/0 through ct1-0/0/15 E1 framing: ce1-0/0/0 through ce1-0/0/15 Port numbering (software) Gigabit Ethernet RJ-45 Ports The front panel of the ACX2000 router has six Gigabit Ethernet RJ-45 ports, and the ACX2100 router has eight Gigabit Ethernet RJ-45 ports. Table 12 on page 16 describes the ports in more detail. Table 12: RJ-45 Port Features Description Feature • 10BASE-T Copper • 100BASE-T • 1000BASE-T Supported standards Category 5 Cable RJ-45 Connector • ACX2000: 0/1/0 through 0/1/2 and 0/1/4 through 0/1/6 • ACX2100: 1/0/0 through 1/0/3 and 1/1/0 through 1/1/3 Port numbering (hardware) • ACX2000: ge-0/1/0 through ge-0/1/2 and ge-0/1/4 through ge-0/1/6 • ACX2100: ge-1/0/0 through ge-1/0/3 and ge-1/1/0 through ge-1/1/3 Port numbering (software) Copyright © 2015, Juniper Networks, Inc. 16 ACX2000 and ACX2100 Universal Access Router Hardware Guide

in devices that require both network connectivity and electric power such as IP phones, wireless access points, and security cameras. Table 13 on page 17 describes the ports in more detail. Table 13: PoE Port Features Description Feature IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) Supported standards 65 W Per port power limit Copper Ethernet LAN cable Cable RJ-45 Connector 0/1/3 POE and 0/1/7 POE Port numbering (hardware) ge-0/1/3 and ge-0/1/7 Port numbering (software) Gigabit Ethernet SFP Ports The Gigabit Ethernet SFP ports allow you to install the Gigabit Ethernet transceivers listed in Table 14 on page 17. NOTE: On the ACX2000 router, you can use Gigabit Ethernet transceivers in the GE ports, or you can use 10-Gigabit Ethernet transceivers in the XE ports. Use one set of ports at a time. On the ACX2100 router, you can use both sets at the same time. Table 14: Gigabit Ethernet SFP Port Features Description Feature • 1000BASE-BX (model number pairs: SFP-GE10KT13R14 with SFP-GE10KT14R13, SFP-GE10KT13R15 with SFP-GE10KT15R13, SFP-GE40KT13R15 with SFP-GE40KT15R13) • 1000BASE-EX (model number SFP-GE40KM) • 1000BASE-LH (model number SFP-1GE-LH-ET) • 1000BASE-LX (model number SFP-1GE-LX-ET) • 1000BASE-SX(modelnumbersSFP-1GE-SXandSFP-1GE-SX-ET) Supported standards Fiber-optic cable Cable Duplex LC/PC (Rx and Tx) Connector 17 Copyright © 2015, Juniper Networks, Inc. Chapter 2: ACX2000 and ACX2100 Hardware Components

Description Feature • ACX2000: 0/2/0 and 0/2/1 • ACX2100: 1/1/0 through 1/1/3 and 1/2/0 and 1/2/1 Port numbering (hardware) • ACX2000: ge-0/2/0 and ge-0/2/1 • ACX2100: ge-1/1/0 through ge-1/1/3 and ge-1/2/0 and ge-1/2/1 Port numbering (software) For more information on optical interface, specifications, see Gigabit Ethernet 1000BASE Optical Interface Specifications and Fast Ethernet and Gigabit Ethernet Bidirectional SFP Optical Interface Specifications. 10-Gigabit Ethernet SFP+ Ports The ports labeled XE allow you to install the 10-Gigabit Ethernet transceivers listed in Table 15 on page 18. NOTE: On the ACX2000 router, you can use Gigabit Ethernet transceivers in the GE ports, or you can use 10-Gigabit Ethernet transceivers in the XE ports. Use one set of ports at a time. On the ACX2100 router, you can use both sets at the same time. Table 15: Gigabit Ethernet SFP Port Features Description Feature • 10GBASE-SR (model number EX-SFP-10GE-USR) • 10GBASE-ER (model number SFPP-10GE-ER) • 10GBASE-LR (model number SFPP-10GE-LR) • 10GBASE-SR (model numbers SFPP-10GE-SR) Supported standards Fiber-optic cable Cable Duplex LC/PC (Rx and Tx) Connector • ACX2000: 0/3/0 and 0/3/1 • ACX2100: 1/1/0 through 1/1/3 and 1/2/0 and 1/2/1 Port numbering (hardware) • ACX2000: xe-0/3/0 and xe-0/3/1 • ACX2100: xe-1/3/0 through xe-1/3/1 Port numbering (software) Related Documentation ACX2000 and ACX2100 Universal Access Router Overview on page 3 • • Front Panel of an ACX2000 Router on page 9 • Front Panel of an ACX2100 Router on page 10 • LEDs on ACX2000 and ACX2100 Routers on page 12 Copyright © 2015, Juniper Networks, Inc. 18 ACX2000 and ACX2100 Universal Access Router Hardware Guide

The ACX2000 and ACX2100 routers do not contain fans and are passively cooled by the heatsinks (see Figure 10 on page 19). Temperature sensors in the chassis monitor the temperature within the chassis. If the temperature inside the chassis rises above the threshold, the router shuts down automatically. Figure 10: Cooling System and Airflow in an ACX2000 and ACX2100 Router g006417 Front Rear Related Documentation Site Preparation Checklist for ACX2000 and ACX2100 Routers on page 29 • • Rack Requirements for ACX2000 and ACX2100 Routers on page 30 • Cabinet Requirements for ACX2000 and ACX2100 Routers on page 31 • Clearance Requirements for Airflow and Hardware Maintenance on ACX2000 and ACX2100 Routers on page 33 • ACX2000 and ACX2100 Router Environmental Specifications on page 121 ACX2000 and ACX2100 Power Overview Both ACX2000 and ACX2100 routers are available as DC-powered models. The ACX2100 is also available as an AC-powered model. The power supply in the router is built along the front panel of the chassis, with the DC power terminals or AC inlets on the front to connect power to the router. Table 16 on page 20 lists the power consumed by the routers. 19 Copyright © 2015, Juniper Networks, Inc. Chapter 2: ACX2000 and ACX2100 Hardware Components

Value Description 96 W Maximum consumed by the router 96.6 W Maximum consumed by the router when no PoE power is drawn 2 Number of PoE ports available 65 W per port Maximum PoE power available Related Documentation ACX2000 and ACX2100 Universal Access Router Overview on page 3 • • Connecting Power Cables to the ACX2000 Router on page 48 • ACX2000 and ACX2100 DC Power Electrical Safety Guidelines on page 108 • ACX2000 and ACX2100 DC Power Specifications on page 127 ACX2000 and ACX2100 Alarm Contact Port The ACX2000 and ACX2100 router has four external alarm contacts (also known as potential free contacts) for connecting the router to external alarm devices. The port labeled ALARM uses a 15-pin D-type connector. The external alarm contact has 15 pins that accept a single core wire from external alarm devices. A DE15 alarm cable is required to connect the ACX2000 and ACX2100 router to external alarm devices. Use the gauge wire appropriate for the external device that you are connecting. Whenever a system condition triggers an alarm, the alarm relay contacts are activated, which in turn activates the external alarm devices. The alarm setting is open or closed. You can connect and configure two output alarms and four input alarms. Two additional output alarms are reserved and are used to indicate major and minor system alarms. Each output and input alarm has two contacts for connecting the router to external alarm devices. Contact 1 of each alarm can be configured as Normally Open [NO] or Normally Closed [NC] through the CLI. Contact 2 of each alarm functions as a reference [REF] or negative potential terminal for Contact 1 of the corresponding alarm and provides a current path for external alarm devices. Table 17 on page 21 describes the functions of the alarm contacts. Copyright © 2015, Juniper Networks, Inc. 20 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Function Contact Name Contact Name Current is not flowing through Contact 1 and Contact 2 [REF] when operating normally. When the current flows, the closed alarm is generated. Normally Open (NO) Contact 1 Current is flowing through Contact 1 and Contact 2 [REF] when operating normally. When the current stops flowing, the open alarm is generated. NormallyClosed(NC) Provides the current path for the external alarm-reporting device and functions as a reference or negative potential terminal for Contact 1. Reference (REF) Contact 2 Figure 11 on page 21 shows an example of a wiring diagram for a simple output alarm-reporting device. In this case the device is a light bulb that illuminates when the device encounters a condition that activates the red alarm LED and relay contacts. The alarm relay contacts can also be used to activate other devices such as bells or buzzers. Figure 11: Sample Output Alarm-Reporting Device Figure 12 on page 22 shows an example of a wiring diagram for a simple input alarm-reporting device. In this case the push button switch is an alarm sensor that triggers an input alarm when a door-open condition occurs. 21 Copyright © 2015, Juniper Networks, Inc. Chapter 2: ACX2000 and ACX2100 Hardware Components

Related Documentation ACX2000 and ACX2100 Universal Access Router Overview on page 3 • • Alarm Contact Port Pinouts on the ACX2000 and ACX2100 Router on page 135 Clocking Ports on the ACX2000 and the ACX2100 Router The clocking ports acquire the clock source and synchronize communication over time-division multiplexing (TDM) interfaces in the router. The clocking ports distribute a synchronized clock signal throughout the router by locking onto a clock signal originating from an internal clock source or by connecting to an external clock source. The reference clock inputs can be T1/E1 line clocks, Ethernet recovered clocks, IEEE 1588v2 recovered clocks, or xDSL NTU-R timing. Externally available reference clocks are BITS T1/E1 rate clocks, 1 PPS, and 10 MHz. The four SubMiniature B (SMB) connectors and one RJ-48 port on the front panel of the router connect to external clock signal sources. The clocking ports provide the synchronized output clocks from any one of the above reference inputs based on the clock’s priority. Internal clock sources within the router include: • External building-integrated timing system (BITS) timing port • 10-MHz timing connectors (one input and one output) • 1.544-MHz/2.048 MHz T1/E1 (RJ-48) ports for timing input or output • 1 pulse-per-second (PPS) connectors (one input and one output) • Time-of-Day (TOD) RS232 port • SyncE support on RJ-45/SFP ports as timing input or output • Packet timing (IEEE 1588v2) includes: • Timing input when configured as Ordinary Clock (OC) or Boundary Clock (BC) • Timing output when configured as BC Related Documentation • ACX2000 and ACX2100 Universal Access Router Overview on page 3 Copyright © 2015, Juniper Networks, Inc. 22 ACX2000 and ACX2100 Universal Access Router Hardware Guide

23 Copyright © 2015, Juniper Networks, Inc. Chapter 2: ACX2000 and ACX2100 Hardware Components

24 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Architecture Overview • Packet Flow on ACX Series Routers on page 25 Packet Flow on ACX Series Routers The class-of-service (CoS) architecture for ACX Series routers is in concept similar to that of MX Series routers. The general architecture for ACX Series routers is shown in Figure 13 on page 25. Figure 13: ACX Series Router Packet Forwarding and Data Flow Incoming packet Ingress classification In order of decreasing precedence: MF classification (DFW) Fixed classification BA classification Queuing Egress rewrite Outgoing packet g006408 Buffering Scheduling Based on the model, ACX routers contain a built-in Routing Engine and Packet Forwarding Engine and can contain both T1/E1 and Gigabit Ethernet Ports. The Packet Forwarding Engine has one or two “pseudo” Flexible PIC Concentrators. Because there is no switching fabric, the single Packet Forwarding Engine takes care of both ingress and egress packet forwarding. Fixed classification places all packets in the same forwarding class, or the usual multifield (MF) or behavior aggregate (BA) classifications can be used to treat packets differently. BA classification with firewall filters can be used for classification based on IP precedence, DSCP, IEEE, or other bits in the frame or packet header. However, the ACX Series routers can also employ multiple BA classifiers on the same physical interface. The physical interfaces do not have to employ the same type of BA classifier. For example, a single physical interface can use classifiers based on IP precedence as well as IEEE 802.1p. If the CoS bits of interest are on the inner VLAN tag of a dual-tagged VLAN interface, the classifier can examine either the inner or outer bits. (By default, the classification is done based on the outer VLAN tag.) Eight queues per egress port support scheduling using the weighted deficit round- robin (WDRR) mechanism, a form of round-robin queue servicing. The supported priority levels 25 Copyright © 2015, Juniper Networks, Inc.

weighted random early detect (WRED) and weighted tail drop (WTD). All CoS features are supported at line rate. The packet pipeline through an ACX Series router is shown in Figure 14 on page 26. Note that the rate limiting is done with an integrated architecture along with all other CoS functions. Scheduling and shaping are supported on the output side. Figure 14: ACX Series Router Packet Handling g006428 Rate limiting BA and fixed classification Forwarding class and packet loss priority MF classification Policing can overwrite forwarding class and packet loss priority Forwarding class and packet loss priority determine rewrite value Scheduling and shaping Scheduling and shaping Forwarding class Qn + packet loss priority Qn WRED Related Documentation • ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping on page 5 • Configuring CoS on ACX Series Universal Access Routers Copyright © 2015, Juniper Networks, Inc. 26 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Router • Preparing the Site for ACX2000 and ACX2100 Router Installation on page 29 • ACX2000 and ACX2100 Router Installation Overview on page 35 • Unpacking an ACX2000 or ACX2100 Router on page 37 • Installing the ACX2000 or ACX2100 Router Mounting Hardware on page 41 • Installing the ACX2000 or ACX2100 Router on page 43 • Grounding and Providing Power to the ACX2000 or ACX2100 Router on page 45 • Connecting the ACX2000 and ACX2100 Router to External Devices on page 51 • Configuring Junos OS on page 57 27 Copyright © 2015, Juniper Networks, Inc.

28 ACX2000 and ACX2100 Universal Access Router Hardware Guide

ACX2100 Router Installation • Site Preparation Checklist for ACX2000 and ACX2100 Routers on page 29 • Rack Requirements for ACX2000 and ACX2100 Routers on page 30 • Cabinet Requirements for ACX2000 and ACX2100 Routers on page 31 • Clearance Requirements for Airflow and Hardware Maintenance on ACX2000 and ACX2100 Routers on page 33 • General Site Guidelines for ACX Series Routers on page 34 Site Preparation Checklist for ACX2000 and ACX2100 Routers The checklist in Table 18 on page 29 summarizes the tasks you need to perform when preparing a site for router installation. Table 18: Site Preparation Checklist Date Performed By For More Information Item or Task Environment “ACX2000 and ACX2100 Router Environmental Specifications” on page 121 Verify that environmental factors such as temperature and humidity do not exceed router tolerances. Power Measure the distance between external power sources and router installation site. Locate sites for connection of system grounding. “ACX2000 and ACX2100 DC Power Specifications” on page 127 “ACX2100 AC Power Specifications” on page 125 Calculate the power consumption and requirements. Hardware Configuration 29 Copyright © 2015, Juniper Networks, Inc.

Date Performed By For More Information Item or Task “ACX2000 and ACX2100 Universal Access Router Overview” on page 3 Choose the number and types of routers you want to install. Rack or Cabinet “Rack Requirements for ACX2000 and ACX2100 Routers” on page 30 “Cabinet Requirements for ACX2000 and ACX2100 Routers” on page 31 Verify that your rack or cabinet meets the minimum requirements for the installation of the router. “Clearance Requirements for Airflow and Hardware Maintenance on ACX2000 and ACX2100 Routers” on page 33 Plan rack or cabinet location, including required space clearances. Secure the rack or cabinet to the floor and building structure. Cables Acquire cables and connectors: • Determine the number of cables needed based on your planned configuration. • Review the maximum distance allowed for each cable. Choose the length of cable based on the distance between the hardware components being connected. Plan the cable routing and management. Related Documentation Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 • • General Site Guidelines for ACX Series Routers on page 34 Rack Requirements for ACX2000 and ACX2100 Routers You can mount the router on two-post racks or four-post racks. Rack requirements consist of: • Rack type • Mounting bracket hole spacing • Rack size and strength • Rack connection to the building structure Table 19 on page 31 provides the rack requirements and specifications for the router. Copyright © 2015, Juniper Networks, Inc. 30 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Guidelines Rack Requirement Use a two-post rack or a four-post rack. You can mount the router on any two-post or four-post rack that provides bracket holes or hole patterns spaced at 1 U (1.75 in., or 4.45 cm) increments and that meets the size and strength requirements to support the weight. A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics Industry Association (http://www.eia.org). The rack must meet the strength requirements to support the weight of the chassis. Rack type The holes in the mounting brackets are spaced at 1 U (1.75 in., or 4.45 cm) so that the router can be mounted in any rack that provides holes spaced at that distance. Mounting bracket hole spacing • Ensure that the rack complies with this standard: • A 19-in. (48.3 cm) rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Industry Association (http://www.eia.org). • Ensure that the rack rails are spaced widely enough to accommodate the router chassis' external dimensions . The outer edges of the front-mounting brackets extend the width of the chassis to 19.2 in. (48.7 cm). • The rack must be strong enough to support the weight of the router. • Ensure that the spacing of rails and adjacent racks allows for the proper clearance around the router and rack. Rack size and strength • Secure the rack to the building structure. • If earthquakes are a possibility in your geographical area, secure the rack to the floor. • Secure the rack to the ceiling brackets as well as to the wall or floor brackets for maximum stability. Rack connection to building structure One pair of mounting brackets for mounting the router on two posts of a rack is supplied with each router. For mounting the router on four posts of a rack or cabinet, you can order a four-post rack-mount kit separately. Related Documentation Cabinet Requirements for ACX2000 and ACX2100 Routers on page 31 • • General Site Guidelines for ACX Series Routers on page 34 • Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 Cabinet Requirements for ACX2000 and ACX2100 Routers You can mount the router in a cabinet that contains a 19-in. (48.3 cm) rack. Cabinet requirements consist of: • Cabinet size • Clearance requirements • Cabinet airflow requirements 31 Copyright © 2015, Juniper Networks, Inc. Chapter 4: Preparing the Site for ACX2000 and ACX2100 Router Installation

Table 20: Cabinet Requirements and Specifications for the ACX2000 and ACX2100 Router Guidelines Cabinet Requirement • You can mount the router in a cabinet that contains a 19-in. (48.3 cm) rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics Industry Association (http://www.eia.org). NOTE: The cabinet must meet the strength requirements to support the weight of the router. • The minimum cabinet size must be able to accommodate the maximum external dimensions of the router. Cabinet size • The outer edges of the mounting brackets extend the width of the chassis to 19 in. (48.3 cm). • The minimum total clearance inside the cabinet is 30 in. (76.2 cm) between the inside of the front door and the inside of the rear door. Cabinet clearance When you mount the router in a cabinet, ensure that ventilation through the cabinet is sufficient to prevent overheating. • Ensure an adequate cool air supply to dissipate the thermal output of the router or routers. • Ensure that the cabinet allows the chassis hot exhaust air to exit the cabinet without recirculating into the router. An open cabinet (without a top or doors) that employs hot air exhaust extraction from the top allows the best airflow through the chassis. If the cabinet contains a top or doors, perforations in these elements assist with removing the hot air exhaust. • Install the router in the cabinet in a way that maximizes the open space on the side of the chassis that has the hot air exhaust. This space maximizes the clearance for critical airflow. • Route and dress all cables to minimize the blockage of airflow to and from the chassis. • Ensure that the spacing of rails and adjacent cabinets allows for the proper clearance around the router and cabinet. • A cabinet larger than the minimum required provides better airflow and reduces the chance of overheating. Cabinet airflow requirements Related Documentation Site Preparation Checklist for ACX2000 and ACX2100 Routers on page 29 • • Rack Requirements for ACX2000 and ACX2100 Routers on page 30 • General Site Guidelines for ACX Series Routers on page 34 • Clearance Requirements for Airflow and Hardware Maintenance on ACX2000 and ACX2100 Routers on page 33 • Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 Copyright © 2015, Juniper Networks, Inc. 32 ACX2000 and ACX2100 Universal Access Router Hardware Guide

ACX2100 Routers When planning the installation site, allow sufficient clearance around the rack (see Figure 15 on page 33): • For service personnel to remove and install hardware components, allow at least 2.16 in. (5.5 cm) in front of the router. • The rack or cabinet must have an adequate supply of cooling air. • Ensure that the cabinet allows the chassis hot exhaust air to exit from the cabinet without recirculating into the router. • When deploying the router in harsh environments where the router may operate between 131° F (55° C) and 149° F (65° C), allow a 1–rack unit (U) gap above and below the router. • Ensure that there is a minimum 1 meter/second airflow in any direction. Figure 15: ACX2000 and ACX2100 Chassis Dimensions and Clearance Requirements Rear Front 17.5" (44.5 cm) 9.4" (24 cm) g006404 Front-mounting flange 19.2" (48.7 cm) 2.16" (5.5 cm) clearance required for the cables .75" (2 cm) clearance required for free airflow 3" (7.6 cm) 3" (7.6 cm) Related Documentation Site Preparation Checklist for ACX2000 and ACX2100 Routers on page 29 • • Rack Requirements for ACX2000 and ACX2100 Routers on page 30 • Cabinet Requirements for ACX2000 and ACX2100 Routers on page 31 • General Site Guidelines for ACX Series Routers on page 34 • Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 33 Copyright © 2015, Juniper Networks, Inc. Chapter 4: Preparing the Site for ACX2000 and ACX2100 Router Installation

Efficient device operation requires proper site planning and maintenance and proper layout of the equipment, rack or cabinet (if used), and wiring closet. To plan and create an acceptable operating environment for your device and prevent environmentally caused equipment failures: • Keep the area around the chassis free from dust and conductive material, such as metal flakes. • Follow prescribed airflow guidelines to ensure that the cooling system functions properly and that exhaust from other equipment does not blow into the intake vents of the router. • Follow the prescribed ESD prevention procedures to avoid damaging the equipment. Static discharge can cause components to fail completely or intermittently over time. • Install the device in a secure area, so that only authorized personnel can access the device. Related Documentation • General Safety Warnings for Juniper Networks Devices on page 84 • General Safety Guidelines for Juniper Networks Devices on page 83 • Installation Safety Warnings for Juniper Networks Devices on page 88 Copyright © 2015, Juniper Networks, Inc. 34 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Installation Overview • Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 Installing and Connecting an ACX2000 or ACX2100 Router Overview To install and connect an ACX2000 or ACX2100 router: 1. Unpack the router and verify the parts received. See “Unpacking an ACX2000 or ACX2100 Router” on page 38. 2. Install the mounting hardware for your rack or cabinet. See “Installing the ACX2000 or ACX2100 Mounting Brackets” on page 41. 3. Install the router. See “Installing the ACX2000 or ACX2100 Router in the Rack” on page 43. 4. Ground the router. See “Connecting the ACX2000 or ACX2100 Router to Earth Ground” on page 45. 5. Connect the power and power on the router. • AC-powered models—See “Connecting AC Power Cords to the ACX2100 Router” on page 47. • DC-powered models—See “Connecting Power Cables to the ACX2000 Router” on page 48. 6. Connect the router to external devices. See: • Connecting ACX2000 or ACX2100 Routers to Management Devices on page 51 • Connecting ACX2000 or ACX2100 Routers to an External Alarm-Reporting Device on page 53 • Connecting ACX2000 or ACX2100 Routers to External Clocking Devices on page 54 7. Configure the router. See “Initially Configuring the ACX2000 or ACX2100 Router” on page 57 Related Documentation • Site Preparation Checklist for ACX2000 and ACX2100 Routers on page 29 • General Site Guidelines for ACX Series Routers on page 34 35 Copyright © 2015, Juniper Networks, Inc.

36 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Router • Parts Inventory (Packing List) for an ACX2000 and ACX2100 Router on page 37 • Unpacking an ACX2000 or ACX2100 Router on page 38 Parts Inventory (Packing List) for an ACX2000 and ACX2100 Router The ACX2000 and ACX2100 routers are shipped in a cardboard carton, secured with foam packing material. The carton also contains an accessory box. The router shipment includes a packing list. Check the parts you receive in the router shipping carton against the items on the packing list. The packing list specifies the part number and description of each part in your order. The parts shipped depend on the configuration you order. If any part on the packing list is missing, contact your customer service representative or contact Juniper Customer Care from within the U.S. or Canada by telephone at 1-888-314-5822. For international-dial or direct-dial options in countries without toll-free numbers, see http://www.juniper.net/support/requesting-support.html. Table 21 on page 37 lists the parts and their quantities in the packing list. Table 21: Parts List for an ACX2000 and ACX2100 Router Quantity Component 1 Router with built-in power supply 2 Mounting brackets 8 Mounting screws to attach the mounting brackets to the router chassis 4 SFP dust cover 1 RJ-45 cable and RJ-45 to DB-9 serial port adapter 1 Quick Start installation instructions 37 Copyright © 2015, Juniper Networks, Inc.

Quantity Component 1 Juniper Networks Product Warranty 1 End User License Agreement NOTE: You must provide additional mounting screws if needed that are appropriate for your rack or cabinet to mount the chassis on a rack or a cabinet. Related Documentation ACX2000 and ACX2100 Universal Access Router Overview on page 3 • • Unpacking an ACX2000 or ACX2100 Router on page 38 Unpacking an ACX2000 or ACX2100 Router The ACX2000 and ACX2100 routers are shipped in a cardboard carton, secured with foam packing material. The carton also contains an accessory box. CAUTION: The routers are maximally protected inside the shipping carton. Do not unpack the routers until you are ready to begin installation. To unpack the router and prepare for installation, you need the following tools: • Blank panels to cover any slots not occupied by a component To unpack the router: 1. Move the shipping carton to a staging area as close to the installation site as possible, but where you have enough room to remove the system components. 2. Position the carton so that the arrows are pointing up. 3. Open the top flaps on the shipping carton. 4. Remove the accessory box, and verify the contents in it against the parts inventory on the label attached to the carton. 5. Pull out the packing material holding the router in place. 6. Verify the chassis components received against the packing list included with the router. An inventory of parts provided with the router is provided in “Parts Inventory (Packing List) for an ACX2000 and ACX2100 Router” on page 37. 7. Save the shipping carton and packing materials in case you need to move or ship the router later. Copyright © 2015, Juniper Networks, Inc. 38 ACX2000 and ACX2100 Universal Access Router Hardware Guide

• Site Preparation Checklist for ACX2000 and ACX2100 Routers on page 29 39 Copyright © 2015, Juniper Networks, Inc. Chapter 6: Unpacking an ACX2000 or ACX2100 Router

40 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Router Mounting Hardware • Installing the ACX2000 or ACX2100 Mounting Brackets on page 41 Installing the ACX2000 or ACX2100 Mounting Brackets To attach the mounting brackets, you need the following tools: • Phillips (+) screwdriver, number 2 Two mounting brackets for front or rear mounting ship with the router (see Figure 16 on page 41 and Figure 17 on page 42). To attach both mounting brackets to either the front or rear of the chassis: 1. Align the bracket with the two sets of mounting holes. 2. Insert the four screws at the top and bottom of the bracket, and tighten each partially. 3. Tighten the four screws completely. 4. Repeat the procedure for the other bracket. Figure 16: Installing the Mounting Brackets to the Front of the ACX2000 or ACX2100 Router g006405 41 Copyright © 2015, Juniper Networks, Inc.

or ACX2100 Router g006406 Related Documentation • Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 • Installing the ACX2000 or ACX2100 Router in the Rack on page 43 Copyright © 2015, Juniper Networks, Inc. 42 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Router • Installing the ACX2000 or ACX2100 Router in the Rack on page 43 Installing the ACX2000 or ACX2100 Router in the Rack NOTE: The router can be installed horizontally in a rack or cabinet. For additional installation options, contact JTAC. To install the router in the rack (see Figure 18 on page 44): CAUTION: Before front mounting the router in a rack, have a qualified technician verify that the rack is strong enough to support the router's weight (about 7 lb (3.2 kg)) and is adequately supported at the installation site. NOTE: One person must be available to lift the router while another secures it to the rack. CAUTION: If you are mounting multiple units on a rack, mount the heaviest unit at the bottom of the rack, and mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units. 1. Ensure that the rack is in its permanent location and is secured to the building. Ensure that the installation site allows adequate clearance for both airflow and maintenance. 2. Position the router in front of the rack or cabinet. 3. Hold onto the bottom of the chassis, and carefully lift it so that the mounting brackets contact the rack rails. 43 Copyright © 2015, Juniper Networks, Inc.

legs, not your back. Avoid twisting your body as you lift. Balance the load evenly and be sure that your footing is solid. 4. Align the mounting brackets with the holes in the rack rails. 5. Install a mounting screw into each of the open mounting holes aligned with the rack, starting from the bottom. 6. Visually inspect the alignment of the router. If the router is installed properly in the rack, all the mounting screws on one side of the rack should be aligned with the mounting screws on the opposite side, and the router should be level. Figure 18: Installing the Front-Mounted Router in the Rack g006407 Mounting rack Mounting bracket Related Documentation • Site Preparation Checklist for ACX2000 and ACX2100 Routers on page 29 • Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 • Installing the ACX2000 or ACX2100 Mounting Brackets on page 41 • Connecting the ACX2000 or ACX2100 Router to Earth Ground on page 45 Copyright © 2015, Juniper Networks, Inc. 44 ACX2000 and ACX2100 Universal Access Router Hardware Guide

ACX2000 or ACX2100 Router • Connecting the ACX2000 or ACX2100 Router to Earth Ground on page 45 • Connecting AC Power Cords to the ACX2100 Router on page 47 • Connecting DC Power Cables to the ACX2000 or ACX2100 Router on page 48 Connecting the ACX2000 or ACX2100 Router to Earth Ground To ground the router, you need the following tools: • Phillips (+) screwdriver, number 2 • ESD grounding wrist strap • Two SAE 10-32 screws and flat washers (not provided) • Grounding lug, Panduit LCD6-14BH-L or equivalent (not provided) • Grounding cable, minimum 14 AWG (2 mm 2) 90° C wire (not provided) You ground the router by connecting a grounding cable to earth ground and then attaching it to the chassis grounding points. To ground the router: 1. Verify that a licensed electrician has attached the cable lug provided with the router to the grounding cable. 2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site. 3. Ensure that all grounding surfaces are clean and brought to a bright finish before grounding connections are made. 4. Connect the grounding cable to a proper earth ground. 5. Detach the ESD grounding strap from the site ESD grounding point. 6. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 7. Place the grounding cable lug over the grounding points on the front of the chassis (see Figure 19 on page 46). 45 Copyright © 2015, Juniper Networks, Inc.

SAE 10-32 screws. Apply 4 lb-in. (0.49 Nm) of torque to each screw. Do not overtighten the screw. (Use a number 2 Phillips screwdriver.) CAUTION: Ensure that each grounding cable lug seats flush against the surface of the grounding points as you are tightening the screws. Ensure that each screw is properly threaded into the grounding points. Applying installation torque to the screw when improperly threaded may result in damage to the terminal. CAUTION: The maximum torque rating of the grounding screws on the router is 4 lb-in. (0.49 Nm). The grounding screws may be damaged if excessive torque is applied. Use only a torque-controlled driver to tighten screws. Use an appropriately sized driver, with a maximum torque capacity of 5 lb-in. or less. Ensure that the driver is undamaged and properly calibrated and that you have been trained in its use. You may wish to use a driver that is designed to prevent overtorque when the preset torque level is achieved. 9. Dress the grounding cable, and verify that it does not touch or block access to router components, and that it does not drape where people could trip on it. Figure 19: Grounding Points on the ACX2000 and ACX2100 Router g006419 1 2 2— 1— SAE 10-32 screws and washers Grounding lug Related Documentation Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 • • ACX2000 and ACX2100 Power Overview on page 19 • Connecting Power Cables to the ACX2000 Router on page 48 • ACX2000 and ACX2100 Router Grounding Specifications on page 123 • Preventing Electrostatic Discharge Damage to an ACX2000 or ACX2100 Router on page 86 Copyright © 2015, Juniper Networks, Inc. 46 ACX2000 and ACX2100 Universal Access Router Hardware Guide

To connect AC power to the router, you need the following tools: • ESD grounding wrist strap • AC power cords To connect AC power to the router: 1. Locate the power cords, which should have a plug appropriate for your geographical location. See the “ACX2100 AC Power Cord Specifications” on page 125. 2. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 3. Insert the appliance coupler end of the power cord into the appliance inlet on the power supply. 4. Insert the power cord plug into an external AC power source receptacle. NOTE: Each power supply must be connected to a dedicated AC power feed and a dedicated customer site circuit breaker. We recommend that you use a dedicated customer site circuit breaker rated for 2 A (100 VAC) or 1 A (240 VAC), or as required by local code. 5. Dress the power cord appropriately. Verify that the power cord does not block the air exhaust and access to router components, or drape where people could trip on it. 6. Repeat Step 1 through Step 5 for the remaining power supplies. 7. Observe the system LED on the router. If an AC power supply is functioning normally, the system LED lights green steadily. If the system LED is not lit, the power supply is not functioning normally. Repeat the cabling procedures. Figure 20: Connecting AC Power to the Router g006689 Related Documentation ACX2000 and ACX2100 Power Overview on page 19 • • ACX2100 AC Power Specifications on page 125 47 Copyright © 2015, Juniper Networks, Inc. Chapter 9: Grounding and Providing Power to the ACX2000 or ACX2100 Router

To connect power to the router, you need the following tools: • Phillips (+) screwdriver, number 2 • ESD grounding wrist strap • M3 screws and flat washers • DC power source cables, minimum 14 AWG or as required by local code (not provided) • Ring lugs, Molex 190700067 or equivalent (not provided) The DC power supply has four terminals on the front panel, covered by a clear plastic cover. WARNING: You must ground the router before connecting the DC power cables. To connect the power cables: 1. Switch off the dedicated customer site circuit breakers. Ensure that the voltage across the DC power source cable leads is 0 V and that there is no chance that the cable leads might become active during installation. 2. Remove the clear plastic cover protecting the terminal on the faceplate. 3. Verify that the DC power cables are correctly labeled before making connections to the power supply. In a typical power distribution scheme where the return is connected to chassis ground at the battery plant, you can use a multimeter to verify the resistance of the –48V and return DC cables to chassis ground: For –48V and –60V: a. The cable with very large resistance (indicating an open circuit) to chassis ground is the DC input cable (–). b. The cable with very low resistance (indicating a closed circuit) to chassis ground is the return cable (+). For +24V: a. The cable with very low resistance (indicating a closed circuit) to chassis ground is the DC input cable (–). b. The cable with very large resistance (indicating an open circuit) to chassis ground is the return cable (+). 4. Remove the screws and flat washers from the terminals. 5. Secure each power cable lug to the terminal with the flat washers and screw (see Figure 21 on page 49). Apply between 8 lb-in. (0.9 Nm) and 9 lb-in. (1.02 Nm) of torque to each screw. Do not overtighten the screw. (Use a number 2 Phillips screwdriver.) Copyright © 2015, Juniper Networks, Inc. 48 ACX2000 and ACX2100 Universal Access Router Hardware Guide

b. Secure the negative DC source power cable lug to the input (–) terminal. CAUTION: Ensurethateachpowercablelugseatsflushagainstthesurface of the terminal block as you are tightening the screws. Ensure that each screw is properly threaded into the terminal. Applying installation torque to the screw when improperly threaded may result in damage to the terminal. CAUTION: The maximum torque rating of the terminal screws on the DC power supply is 9 lb-in. (1.02 Nm). The terminal screws may be damaged if excessive torque is applied. Use only a torque-controlled driver to tighten screws on the DC power supply terminals. Use an appropriately sized driver, with a maximum torque capacity of 9 lb-in. or less. Ensure that the driver is undamaged and properly calibrated and that you have been trained in its use. You may wish to use a driver that is designed to prevent overtorque when the preset torque level is achieved. 6. Replace the clear plastic cover over the terminals on the faceplate. 7. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point. See the instructions for your site. 8. Connect each DC power cable to the appropriate external DC power source. NOTE: For information about connecting to external DC power sources, see the instructions for your site. 9. Switch on the external circuit breakers to provide voltage to the DC power source cable leads. Observe the system LED on front of the router. If the DC power cable is correctly installed and functioning normally, the system LED lights green steadily. If the system LED indicates that the power supply is not functioning normally, repeat the installation and cabling procedures. Figure 21: Connecting DC Power to the Router g006409 49 Copyright © 2015, Juniper Networks, Inc. Chapter 9: Grounding and Providing Power to the ACX2000 or ACX2100 Router

• Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 • Connecting the ACX2000 or ACX2100 Router to Earth Ground on page 45 • ACX2000 and ACX2100 DC Power Specifications on page 127 Copyright © 2015, Juniper Networks, Inc. 50 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Router to External Devices • Connecting ACX2000 or ACX2100 Routers to Management Devices on page 51 • Connecting ACX2000 or ACX2100 Routers to an External Alarm-Reporting Device on page 53 • Connecting ACX2000 or ACX2100 Routers to External Clocking Devices on page 54 Connecting ACX2000 or ACX2100 Routers to Management Devices To connect external devices and cables to the router, you need the following tools: • RJ-45 Ethernet cable and RJ-45 to DB-9 serial port adapter (provided) • Management host, such as a PC, with an Ethernet port (not provided) • Connecting the Router to a Network for Out-of-Band Management on page 51 • Connecting the Router to a Management Console or Auxiliary Device on page 52 Connecting the Router to a Network for Out-of-Band Management To connect to the MGMT port on the router: 1. Turn off the power to the management device. 2. Plug one end of the Ethernet cable into the MGMT port on the router. (Figure 22 on page 51 shows the connector. Figure 23 on page 52 shows the port.) 3. Plug the other end of the cable into the network device. Figure 22: Ethernet Cable Connector 51 Copyright © 2015, Juniper Networks, Inc.

g006423 Console Server PC CONSOLE/AUX port Connecting the Router to a Management Console or Auxiliary Device You can connect a console, laptop, modem, or other auxiliary device by connecting a serial cable to the port on the front panel labeled CONSOLE/AUX. This port accepts a serial cable with an RJ-45 connector, which is provided with the router. To connect a management console or auxiliary device: 1. Turn off the power to the console or auxiliary device. 2. Plug the RJ-45 end of the serial cable into the AUX port or CONSOLE port on the front panel (Figure 24 on page 52 shows the connector. Figure 25 on page 53 shows the ports.) CAUTION: Do not connect Power over Ethernet (PoE) cable to the AUX port or the CONSOLE port. Connecting PoE cable to the AUX or CONSOLE ports might damage these ports permanently. 3. Plug the female DB-9 end into the device's serial port. NOTE: For console devices, configure the serial port to the following values: • Baud rate—9600 • Parity—N • Data bits—8 • Stop bits—1 • Flow control—none Figure 24: Routing Engine Console and Auxiliary Cable Connector Copyright © 2015, Juniper Networks, Inc. 52 ACX2000 and ACX2100 Universal Access Router Hardware Guide

g006423 Console Server PC CONSOLE/AUX port Related Documentation General Site Guidelines for ACX Series Routers on page 34 • • Installing and Connecting an ACX2000 or ACX2100 Router Overview on page 35 • Connecting the ACX2000 or ACX2100 Router to Earth Ground on page 45 • Initially Configuring the ACX2000 or ACX2100 Router on page 57 • Management Port Connector Pinout Information for ACX Series Routers on page 133 Connecting ACX2000 or ACX2100 Routers to an External Alarm-Reporting Device To connect the router to external alarm-reporting devices, attach wires to the ALARM relay contacts on the front panel of the router. A system condition that triggers the red or yellow alarm on the router also activates the corresponding alarm relay contact. The terminal blocks that plug into the alarm relay contacts are supplied with the router. They accept wire of any gauge between 20 AWG and 14 AWG (0.52 and 2.08 mm 2), which is not provided. Use the gauge of wire appropriate for the external device you are connecting. To connect an external device to an alarm relay contact: 1. Prepare the required length of wire with gauge between 8 AWG and 14 AWG (0.08 and 2.08 mm 2. 2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis. 3. While the terminal block is not plugged into the relay contact, use a 2.5-mm flat-blade screwdriver to loosen the small screws on its side. With the small screws on its side facing left, insert wires into the slots in the front of the block based on the wiring for the external device. Tighten the screws to secure the wire. 4. Orient the terminal block according to the labels to the left of the appropriate relay contact (NC means “normally closed, C means “common,” and (NO means “normally open”). 5. Plug the terminal block into the relay contact and use a 2.5-mm flat-blade screwdriver to tighten the screws on the face of the block. 6. Attach the other end of the wires to the external device. If attaching a reporting device for the other kind of alarm, repeat the procedure. 53 Copyright © 2015, Juniper Networks, Inc. Chapter 10: Connecting the ACX2000 and ACX2100 Router to External Devices

• • Alarm Contact Port Pinouts on the ACX2000 and ACX2100 Router on page 135 Connecting ACX2000 or ACX2100 Routers to External Clocking Devices The ACX2000 and ACX2100 routers support external clock synchronization for Synchronous Ethernet, T1 or E1 line timing sources, and external inputs. • Connecting 1-PPS and 10-MHz Timing Devices to the Router on page 54 • Connecting a T1 or E1 External Clocking Device to the Router on page 54 Connecting 1-PPS and 10-MHz Timing Devices to the Router The router has four SMB connectors that support 1-PPS and 10-MHz timing devices. NOTE: Ensure a cable of 3m or less in length is used for the 10 MHz and 1PPS connectors. To connect the SMB co-axial cable to the external clocking input port: 1. Connect one end of the SMB coaxial cable to either the 1-PPS SMB connector or the 10-MHz SMB connector on the router. 2. Connect the other end of the SMB coaxial cable to the 10-MHz or 1-PPS source network equipment. NOTE: Ensure that the 10-MHz and 1-PPS sources are 50 ohms LVCMOS / LVTTL (3.3v) compatible. Connecting a T1 or E1 External Clocking Device to the Router The router contains an external building-integrated timing system (BITS) timing port labeled EXT REF CLK IN on the front panel of the router. To connect the router to a BITS T1/E1 external clocking device: 1. Attach an electrostatic discharge (ESD) grounding trap on your bare wrist, and connect the strap to one of the ESD points on the chassis. 2. Plug one end of the RJ-45 cable into the internal clock port on the craft interface. 3. Plug the other end of the RJ-45 cable into the T1 or E1 external clocking device. 4. Verify that the LEDs for the external clock input is lit steadily green. 5. Configure the port. See: • Initially Configuring the ACX2000 or ACX2100 Router on page 57 Copyright © 2015, Juniper Networks, Inc. 54 ACX2000 and ACX2100 Universal Access Router Hardware Guide

6. Issue the show chassis synchronization command to check the status of the port. user@host> show chassis synchronization Clock Synchronization Status : Clock module on CB 0 Current state : master Current clock state : internal Selected for : 13 days, 23 hours, 15 minutes, 17 seconds Selected since : 2012-10-29 18:28:35 EDT Deviation (in ppm) : +0.00 Last deviation (in ppm): +0.00 Clock Synchronization Status : Clock module on CB 1 Current state : backup Current clock state : locked to master CB Selected for : 13 days, 23 hours, 14 minutes, 23 seconds Selected since : 2012-10-29 18:29:29 EDT 55 Copyright © 2015, Juniper Networks, Inc. Chapter 10: Connecting the ACX2000 and ACX2100 Router to External Devices

56 ACX2000 and ACX2100 Universal Access Router Hardware Guide

• Initially Configuring the ACX2000 or ACX2100 Router on page 57 Initially Configuring the ACX2000 or ACX2100 Router The ACX2000 and ACX2100 routers ship with Junos OS preinstalled and ready to be configured when the router is powered on. One 4-GB internal NAND Flash memory device is divided into two partitions (da0s1 and da0s2). One partition is marked as the active partition, and the other partition functions as an alternate partition. The NAND Flash device acts as the hard drive. Two USB ports on the front panel accept USB storage devices (usb0 and usb1) that can also function as alternate boot devices. When the router boots, it first attempts to start the image on the USB Flash memory device. If a USB Flash memory device is not inserted into the router or the attempt otherwise fails, the router next tries the active partition on the NAND Flash device, and then tries the alternate partition on the NAND Flash device. You configure the router by issuing Junos OS command-line interface (CLI) commands, either on a console device attached to the CONSOLE/AUX port on the front panel, or over a telnet connection to a network connected to the Routing Engine MGMT port on the front panel. Gather the following information before configuring the router: • Name that the router will use on the network • Domain name that the router will use • IP address and prefix length information for the Ethernet interface • IP address of a default router • IP address of a DNS server • Password for the root user 57 Copyright © 2015, Juniper Networks, Inc.

traffic. For complete information about enabling the router to forward traffic, including examples, see the Junos OS configuration guides. To configure the software: 1. Verify that the router is powered on. 2. Log in as the “root” user. There is no password. 3. Start the CLI. root# cli root@> 4. Enter configuration mode. cli> configure [edit] root@# 5. Configure the name of the router. If the name includes spaces, enclose the name in quotation marks (“ ”). [edit] root@# set system host-name host-name 6. Create a management console user account. [edit] root@# set system login user user-name authentication plain-text-password New password: password Retype new password: password 7. Set the user account class to super-user. [edit] root@# set system login user user-name class super-user 8. Configure the router’s domain name. [edit] root@# set system domain-name domain-name 9. Configure the IP address and prefix length for the router’s Ethernet interface. [edit] root@# set interfaces fxp0 unit 0 family inet address address/prefix-length 10. Configure the IP address of a backup router, which is used only while the routing protocol is not running. [edit] root@# set system backup-router address 11. Configure the IP address of a DNS server. [edit] root@# set system name-server address 12. Set the root authentication password by entering either a clear-text password, an encrypted password, or an SSH public key string (DSA or RSA). Copyright © 2015, Juniper Networks, Inc. 58 ACX2000 and ACX2100 Universal Access Router Hardware Guide

New password: password Retype new password: password or [edit] root@# set system root-authentication encrypted-password encrypted-password or [edit] root@# set system root-authentication ssh-dsa public-key or [edit] root@# set system root-authentication ssh-rsa public-key 13. (Optional) Configure the static routes to remote subnets with access to the management port. Access to the management port is limited to the local subnet. To access the management port from a remote subnet, you need to add a static route to that subnet within the routing table. For more information about static routes, see the Junos OS Administration Library for Routing Devices. [edit] root@# set routing-options static route remote-subnet next-hop destination-IP retain no-readvertise 14. Configure the telnet service at the [edit system services] hierarchy level. [edit] root@# set system services telnet 15. (Optional) Display the configuration to verify that it is correct. [edit] root@# show system { host-name host-name; domain-name domain-name; backup-router address; root-authentication { authentication-method (password | public-key); } name-server { address; } } interfaces { fxp0 { unit 0 { family inet { address address/prefix-length; } } } } 59 Copyright © 2015, Juniper Networks, Inc. Chapter 11: Configuring Junos OS

[edit] root@# commit 17. (Optional) Configure additional properties by adding the necessary configuration statements. Then commit the changes to activate them on the router. [edit] root@host# commit 18. When you have finished configuring the router, exit configuration mode. [edit] root@host# exit root@host> Related Documentation • ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping on page 5 • Protocols and Applications Supported by the ACX Routers Copyright © 2015, Juniper Networks, Inc. 60 ACX2000 and ACX2100 Universal Access Router Hardware Guide

and Replacement Procedures • Maintaining ACX2000 and ACX2100 Router Hardware Components on page 63 • Troubleshooting ACX2000 and ACX2100 Hardware Components on page 67 • Replacing ACX2000 and ACX2100 Hardware Components on page 71 61 Copyright © 2015, Juniper Networks, Inc.

62 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Router Hardware Components • Routine Maintenance Procedures for the ACX2000 and ACX2100 Router on page 63 • Maintaining Cables That Connect to ACX2000 or ACX2100 Network Ports on page 63 • Maintaining the ACX2000 and ACX2100 Uplink Ports on page 64 Routine Maintenance Procedures for the ACX2000 and ACX2100 Router Purpose For optimum router performance, perform preventive maintenance procedures. Action Inspect the installation site for moisture, loose wires or cables, and excessive dust. Make sure that airflow is unobstructed around the router and into the air intake vents. • • Check the status-reporting devices on the font panel—system LED. Related Documentation Maintaining Cables That Connect to ACX2000 or ACX2100 Network Ports on page 63 • • Maintaining the ACX2000 and ACX2100 Uplink Ports on page 64 Maintaining Cables That Connect to ACX2000 or ACX2100 Network Ports Purpose For optimum router performance, verify the condition of the cables that connect to the network ports. Action On a regular basis: • Place excess cable out of the way. Do not allow fastened loops of cable to dangle from the connector, because this stresses the cable at the fastening point. Putting fasteners on the loops helps to maintain their shape. • Keep the cable connections clean and free of dust and other particles, which can cause drops in the received power level. Always inspect cables, and clean them if necessary before connecting an interface. • Label both ends of the cables to identify them. The following guidelines apply specifically to fiber-optic cables: 63 Copyright © 2015, Juniper Networks, Inc.

transceiver on the faceplate and on the end of the cable. • Anchor fiber-optic cables to avoid stress on the connectors. Be sure to secure fiber-optic cables so that they do not support their own weight as they hang to the floor. Never let fiber-optic cable hang free from the connector. • Avoid bending fiber-optic cable beyond its bend radius. An arc smaller than a few inches can damage the cable and cause problems that are difficult to diagnose. • Frequent plugging and unplugging of fiber-optic cable into and out of optical instruments can cause damage to the instruments that is expensive to repair. Instead, attach a short fiber extension to the optical equipment. Any wear and tear due to frequent plugging and unplugging is then absorbed by the short fiber extension, which is easy and inexpensive to replace. • Keep fiber-optic cable connections clean. Small microdeposits of oil and dust in the canal of the transceiver or cable connector could cause loss of light, reducing signal power and possibly causing intermittent problems with the optical connection. To clean the transceivers, use an appropriate fiber-cleaning device, such as RIFOCS Fiber Optic Adaptor Cleaning Wands (part number 946). Follow the directions for the cleaning kit you use. After you clean an optical transceiver, make sure that the connector tip of the fiber-optic cable is clean. Use only an approved alcohol-free fiber-optic cable cleaning kit, such as the Opptex Cletop-S Fiber Cleaner. Follow the directions for the cleaning kit you use. Related Documentation Routine Maintenance Procedures for the ACX2000 and ACX2100 Router on page 63 • • Troubleshooting Resources for ACX2000 and ACX2100 Routers on page 67 • Replacing an ACX2000 or ACX2100 Fiber-Optic Cable on page 73 Maintaining the ACX2000 and ACX2100 Uplink Ports Purpose For optimum performance, verify the condition of the uplink ports. Action On a regular basis: • Check the port LEDs. The meaning of the LED states differs for various uplink ports. For more information, see “LEDs on ACX2000 and ACX2100 Routers” on page 12. If the router detects a port failure, the router generates an alarm message to be sent to the Routing Engine. A green status LED indicates that the port is functioning normally. • From the CLI, issue the show chassis fpc pic-status command. ACX2000 router: user@host> show chassis fpc pic-status Slot 0 Online PIC 0 Online 16x CHE1T1, RJ48 PIC 1 Online 8x 1GE(LAN) RJ45 Copyright © 2015, Juniper Networks, Inc. 64 ACX2000 and ACX2100 Universal Access Router Hardware Guide

PIC 3 Online 2x 10GE(LAN) SFP+ ACX2100 router: user@host> show chassis fpc pic-status Slot 0 Online PIC 0 Online 16x CHE1T1, RJ48 Slot 1 Online PIC 0 Online 4x 1GE(LAN) RJ45 PIC 1 Online 4x 1GE(LAN) SFP, RJ45 PIC 2 Online 2x 1GE(LAN) SFP PIC 3 Online 2x 10GE(LAN) SFP+ Related Documentation • ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping on page 5 • Troubleshooting Resources for ACX2000 and ACX2100 Routers on page 67 65 Copyright © 2015, Juniper Networks, Inc. Chapter 12: Maintaining ACX2000 and ACX2100 Router Hardware Components

66 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Hardware Components • Troubleshooting Resources for ACX2000 and ACX2100 Routers on page 67 • Understanding Alarm Types and Severity Classes on ACX Series Routers on page 68 • Verifying Active Alarms on page 69 • Monitoring System Log Messages on page 70 Troubleshooting Resources for ACX2000 and ACX2100 Routers • Command-Line Interface on page 67 • Front Panel LEDs on page 67 Command-Line Interface The Junos OS command-line interface (CLI) is the primary tool for controlling and troubleshooting router hardware, the Junos OS, routing protocols, and network connectivity. CLI commands display information from routing tables, information specific to routing protocols, and information about network connectivity derived from the ping and traceroute utilities. You enter CLI commands on one or more external management devices connected to ports on the front panel. For information about using the CLI to troubleshoot the Junos OS, see the appropriate Junos OS configuration guide. Front Panel LEDs The front panel on the router contains LEDs that allow you to troubleshoot the router. LEDs on the front panel include the following: • System LED—One LED labeled SYS on the right side of the front panel indicates the status of the router. • Management and console port LEDs—Two pairs of LEDs on the front panel indicate the status of the ports. The ports are labeled MGMT and CONSOLE/AUX. 67 Copyright © 2015, Juniper Networks, Inc.

ports. For more information on front panel LEDs, see “LEDs on ACX2000 and ACX2100 Routers” on page 12. Related Documentation Understanding Alarm Types and Severity Classes on ACX Series Routers on page 68 • • Verifying Active Alarms on page 69 • Monitoring System Log Messages on page 70 Understanding Alarm Types and Severity Classes on ACX Series Routers Before monitoring alarms on the router, become familiar with the terms defined in Table 22 on page 68. Table 22: Alarm Terms Definition Term Signal alerting you to conditions that might prevent normal operation. On a router, the alarm signal is the red system LED lit on the front of the chassis. alarm Failure event that triggers an alarm. alarm condition Seriousness of the alarm. The level of severity can be either major (steady red) or minor (blinking red). alarm severity Predefined alarm triggered by a physical condition on the router, such as a power failure, excessive component temperature, or media failure. chassis alarm Predefined alarm triggered by a missing rescue configuration or failure to install a license for a licensed software feature. system alarm Alarm Types The router supports these alarms: • Chassis alarms indicate a failure on the router or one of its components. Chassis alarms are preset and cannot be modified. • System alarms indicate a missing rescue configuration. System alarms are preset and cannot be modified, although you can configure them to appear automatically in the J-Web interface display or CLI display. Alarm Severity Classes Alarms on ACX Series routers have two severity classes: • Major (steady red)—Indicates a critical situation on the router that has resulted from one of the following conditions. A red alarm condition requires immediate action. Copyright © 2015, Juniper Networks, Inc. 68 ACX2000 and ACX2100 Universal Access Router Hardware Guide

• One or more hardware components have exceeded temperature thresholds. • An alarm condition configured on an interface has triggered a critical warning. • Minor (blinking red)—Indicates a noncritical condition on the router that, if left unchecked, might cause an interruption in service or degradation in performance. A minor alarm condition requires monitoring or maintenance. A missing rescue configuration generates a minor system alarm. Related Documentation Verifying Active Alarms on page 69 • • Monitoring System Log Messages on page 70 Verifying Active Alarms Purpose Use the monitoring functionality to view alarm information for the ACX Series routers, including alarm type, alarm severity, and a brief description for each active alarm on the router. Action Observe the system LED on the front panel of the router. If the router is functioning normally with no alarms, the system LED lights green steadily. • • Issue the CLI show chassis alarms command to verify the status of router. As shown in the sample output, the value Class indicates the severity of the alarm. user@host> show chassis alarms 1 alarms currently active Alarm time Class Description 2012-04-08 14:13:37 PDT Minor Host 0 Boot from alternate media When the router is functioning normally with no active alarms, the CLI displays the output as shown: user@host> show chassis alarms No alarms currently active Meaning Table 23 on page 69 lists the alarm output fields. Table 23: Alarm Output Fields Values Field Date and time when the failure was detected. Alarm time Alarm severity—either major or minor. Class Brief synopsis of the alarm. Description Related Documentation Understanding Alarm Types and Severity Classes on ACX Series Routers on page 68 • • Monitoring System Log Messages on page 70 69 Copyright © 2015, Juniper Networks, Inc. Chapter 13: Troubleshooting ACX2000 and ACX2100 Hardware Components

Purpose Use the monitoring functionality to view system log messages for ACX Series routers. Action To view events in the CLI, enter the show log command. For more information see Displaying a Log File from a Single-Chassis System. Related Documentation • Understanding Alarm Types and Severity Classes on ACX Series Routers on page 68 • Verifying Active Alarms on page 69 Copyright © 2015, Juniper Networks, Inc. 70 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Hardware Components • Replacing an ACX2000 or ACX2100 Console or Auxiliary Cable on page 71 • Replacing an ACX2000 or ACX2100 Management Ethernet Cable on page 72 • Replacing an ACX2000 or ACX2100 Fiber-Optic Cable on page 73 • Replacing an ACX2000 or ACX2100 Transceiver on page 75 Replacing an ACX2000 or ACX2100 Console or Auxiliary Cable 1. Removing an ACX2000 or ACX2100 Console or Auxiliary Cable on page 71 2. Installing an ACX2000 or ACX2100 Console or Auxiliary Cable on page 72 Removing an ACX2000 or ACX2100 Console or Auxiliary Cable To remove a serial cable connected to a console or auxiliary device: 1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Press the tab on the connector, and pull the connector straight out of the CONSOLE/AUX port. Figure 26 on page 71 shows the connector. 3. Disconnect the cable from the console or auxiliary device. Figure 26: Ethernet Cable Connectors 71 Copyright © 2015, Juniper Networks, Inc.

The CONSOLE/AUX port on the front panel of the router accepts an RS-232 (EIA-232) serial cable with RJ-45 connectors. To connect a cable between the router and the console or auxiliary device: 1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Connect one end of the replacement cable into the CONSOLE/AUX port. 3. Plug the other end of the cable into the device's serial port. Related Documentation Console/Auxiliary Port Connector Pinout on ACX Series Routers on page 134 • Replacing an ACX2000 or ACX2100 Management Ethernet Cable 1. Removing an ACX2000 or ACX2100 Management Ethernet Cable on page 72 2. Installing an ACX2000 and ACX2100 Management Ethernet Cable on page 72 Removing an ACX2000 or ACX2100 Management Ethernet Cable To remove a serial cable connected to a management device: 1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Press the tab on the connector, and pull the connector straight out of the MGMT port. Figure 27 on page 72 shows the connector. 3. Disconnect the cable from the network device. Figure 27: Ethernet Cable Connectors Installing an ACX2000 and ACX2100 Management Ethernet Cable To install a serial cable connected to a management device: 1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Plug one end of the replacement cable into the appropriate MGMT port. 3. Plug the other end of the cable into the network device. Related Documentation Management Port Connector Pinout Information for ACX Series Routers on page 133 • Copyright © 2015, Juniper Networks, Inc. 72 ACX2000 and ACX2100 Universal Access Router Hardware Guide

To replace a fiber-optic cable: 1. Disconnecting an ACX2000 or ACX2100 Fiber-Optic Cable on page 73 2. Connecting an ACX2000 or ACX2100 Fiber-Optic Cable on page 73 Disconnecting an ACX2000 or ACX2100 Fiber-Optic Cable ACX Series routers have field-replaceable unit (FRU) optical transceivers to which you can connect fiber-optic cables. Before you begin disconnecting a fiber-optic cable from an optical transceiver installed in an ACX Series router, ensure that you have taken the necessary precautions for safe handling of lasers (see “Laser Safety Warnings for Juniper Networks Devices” on page 94). Ensure that you have the following parts and tools available: • A rubber safety cap to cover the transceiver • A rubber safety cap to cover the fiber-optic cable connector To disconnect a fiber-optic cable from an optical transceiver installed in the router: 1. Disable the port in which the transceiver is installed by issuing the command: [edit interfaces] user@router# set interface-name disable WARNING: Do not look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected to transceivers emit laser light that can damage your eyes. 2. Carefully unplug the fiber-optic cable connector from the transceiver. 3. Cover the transceiver with a rubber safety cap. WARNING: Do not leave a fiber-optic transceiver uncovered except when inserting or removing a cable. The rubber safety cap keeps the port clean and prevents accidental exposure to laser light. 4. Cover the fiber-optic cable connector with the rubber safety cap. Connecting an ACX2000 or ACX2100 Fiber-Optic Cable ACX Series routers have field-replaceable unit (FRU) optical transceivers to which you can connect fiber-optic cables. 73 Copyright © 2015, Juniper Networks, Inc. Chapter 14: Replacing ACX2000 and ACX2100 Hardware Components

router, ensure that you have taken the necessary precautions for safe handling of lasers (see “General Laser Safety Guidelines for Juniper Networks Devices” on page 94). To connect a fiber-optic cable to an optical transceiver installed in an ACX Series router: WARNING: Do not look directly into a fiber-optic transceiver or into the ends offiber-opticcables.Fiber-optictransceiversandfiber-opticcablesconnected to transceivers emit laser light that can damage your eyes. 1. If the fiber-optic cable connector is covered by a rubber safety cap, remove the cap. Save the cap. 2. Remove the rubber safety cap from the optical transceiver. Save the cap. 3. Insert the cable connector into the optical transceiver (see Figure 28 on page 74). Figure 28: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in an ACX Series Router g027016 Fiber-optic cable Transceiver 4. Secure the cables so that they are not supporting their own weight. Place excess cable out of the way in a neatly coiled loop. Placing fasteners on a loop helps cables maintain their shape. CAUTION: Do not bend fiber-optic cables beyond their minimum bend radius. An arc smaller than a few inches in diameter can damage the cables and cause problems that are difficult to diagnose. Do not let fiber-optic cables hang free from the connector. Do not allow fastened loops of cables to dangle, which stresses the cables at the fastening point. Copyright © 2015, Juniper Networks, Inc. 74 ACX2000 and ACX2100 Universal Access Router Hardware Guide

Small form-factor pluggable transceivers (SFPs) are optical transceivers that are installed in the front panel of the ACX2000 router. Transceivers are hot-insertable and hot-removable. 1. Removing an ACX2000 or ACX2100 Transceiver on page 75 2. Installing an ACX2000 or ACX2100 Transceiver on page 76 Removing an ACX2000 or ACX2100 Transceiver Removing a transceiver does not interrupt router functioning, but the removed transceiver no longer receives or transmits data. To remove a transceiver (see Figure 29 on page 76): 1. Have ready a replacement transceiver or a transceiver slot plug, an antistatic mat, and a rubber safety cap for the transceiver. 2. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 3. Label the cables connected to the transceiver so that you can reconnect them correctly later. WARNING: Do not look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cable connected to a transceiver emit laser light that can damage your eyes. 4. Remove the cable connector from the transceiver. 5. Pull the ejector handle out from the transceiver to unlock the transceiver. CAUTION: Make sure that you open the ejector handle completely until you hear it click. This action prevents damage to the transceiver. Use needlenose pliers to pull the ejector handle out from the transceiver. 6. Grasp the transceiver ejector handle, and pull the transceiver approximately 0.5 in. (1.3 cm) out of the router. 7. Using your fingers, grasp the body of the transceiver, and pull it the rest of the way out of the router. 75 Copyright © 2015, Juniper Networks, Inc. Chapter 14: Replacing ACX2000 and ACX2100 Hardware Components

8. Place a rubber safety cap over the transceiver. 9. Place the removed transceiver on an antistatic mat or in an electrostatic bag. CAUTION: After removing a transceiver from the chassis, wait at least 30 seconds before reinserting it or inserting a transceiver into a different slot. Installing an ACX2000 or ACX2100 Transceiver To install a transceiver: 1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. 2. Take each transceiver to be installed out of its electrostatic bag, and identify the slot on the component where it will be installed. 3. Verify that each transceiver is covered by a rubber safety cap. If it is not, cover the transceiver with a safety cap. 4. Carefully align the transceiver with the slots in the component. The connectors should face the component. 5. Slide the transceiver until the connector is seated in the component slot. If you are unable to fully insert the transceiver, make sure the connector is facing the right way. 6. Close the ejector handle of the transceiver. 7. Remove the rubber safety cap from the transceiver and the end of the cable. Insert the cable into the transceiver. Copyright © 2015, Juniper Networks, Inc. 76 ACX2000 and ACX2100 Universal Access Router Hardware Guide

ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cable connected to a transceiver emit laser light that can damage your eyes. 8. Verify that the status LEDs on the front panel indicate that the transceiver is functioning correctly. For more information about the component LEDs, see the “LEDs on ACX2000 and ACX2100 Routers” on page 12. 77 Copyright © 2015, Juniper Networks, Inc. Chapter 14: Replacing ACX2000 and ACX2100 Hardware Components

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Router on page 81 • ACX2000 and ACX2100 Router Physical Specifications on page 119 • ACX2000 and ACX2100 Router Environmental Specifications on page 121 • Power Guidelines, Requirements, and Specifications for the ACX2000 and ACX2100 Router on page 123 • Cable and Wire Guidelines and Specifications for the ACX2000 and ACX2100 Router on page 129 • ACX2000 and ACX2100 Cable Connector Pinouts on page 133 • Contacting Customer Support and Returning ACX2000 and ACX2100 Hardware on page 139 79 Copyright © 2015, Juniper Networks, Inc.

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Information for the ACX2000 and ACX2100 Router • Definition of Safety Warning Levels on page 81 • Safety Guidelines and Warnings on page 83 • Agency Approvals and Compliance Statements on page 113 Definition of Safety Warning Levels The documentation uses the following levels of safety warnings: NOTE: You might find this information helpful in a particular situation, or might otherwise overlook it. CAUTION: You must observe the specified guidelines to avoid minor injury or discomfort to you, or severe damage to the hardware device. WARNING: This symbol alerts you to the risk of personal injury from a laser. WARNING: This symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. 81 Copyright © 2015, Juniper Networks, Inc.

johtaaruumiinvammaan.Ennenkuintyöskenteletminkäänlaitteistonparissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dansunesituationpouvantcauserdesblessuresoudesdommagescorporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. ¡Atención! Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Varning! Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. Related Documentation General Safety Warnings for Juniper Networks Devices on page 84 • • Installation Safety Warnings for Juniper Networks Devices on page 88 • Maintenance and Operational Safety Warnings for Juniper Networks Devices on page 97 • General Electrical Safety Warnings for Juniper Networks Devices on page 102 Copyright © 2015, Juniper Networks, Inc. 82 ACX2000 and ACX2100 Universal Access Router Hardware Guide