Accton Technology Edge-Core ES4528V Installation Manual

Layer 2 Switch with 24 10/100/1000BASE-T (RJ-45) Ports, and 4 Gigabit Combination Ports (RJ-45/SFP) ES4528V E072009/ST-R01 150200000022A

COMPLIANCES AND SAFETY STATEMENTS FCC - CLASS A This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment. You may use unshielded twisted-pair (UTP) for RJ-45 connections - Category 3 or better for 10 Mbps connections, Category 5 or better for 100 Mbps connections, Category 5, 5e, or 6 for 1000 Mbps connections. For fiber optic connections, you may use 50/125 or 62.5/125 micron multimode fiber or 9/125 micron single-mode fiber.

– 6 – CE MARK DECLARATION OF CONFORMANCE FOR EMI AND SAFETY (EEC) This information technology equipment complies with the requirements of the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/ 68/EEC. For the evaluation of the compliance with these Directives, the following standards were applied: RFI Emission: ◆ Limit class A according to EN 55022:1998 ◆ Limit class A for harmonic current emission according to EN 61000-3- 2/1995 ◆ Limitation of voltage fluctuation and flicker in low-voltage supply system according to EN 61000-3-3/1995 Immunity: ◆ Product family standard according to EN 55024:1998 ◆ Electrostatic Discharge according to EN 61000-4-2:1995 (Contact Discharge: ±4 kV, Air Discharge: ±8 kV) ◆ Radio-frequency electromagnetic field according to EN 61000-4- 3:1996 (80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m) ◆ Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/ DC power supply: ±1 kV, Data/Signal lines: ±0.5 kV) ◆ Surge immunity test according to EN 61000-4-5:1995 (AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV) ◆ Immunity to conducted disturbances, Induced by radio-frequency fields: EN 61000-4-6:1996 (0.15 - 80 MHz with 1 kHz AM 80% Modulation: 3 V/m) ◆ Power frequency magnetic field immunity test according to EN 61000- 4-8:1993 (1 A/m at frequency 50 Hz) ◆ Voltage dips, short interruptions and voltage variations immunity test according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30% Reduction @500 ms, >95% Reduction @5000 ms) LVD: ◆ EN 60950-1:2001

– 7 – SAFETY COMPLIANCE Warning: Fiber Optic Port Safety Avertissment: Ports pour fibres optiques - sécurité sur le plan optique Warnhinweis: Faseroptikanschlüsse - Optische Sicherheit PSE ALARM 本製品に同梱いたしております電源コードセットは、 本製品専用です。本電源コードセットは、本製品以外の 製品並びに他の用途でご使用いただくことは出来ません。 製品本体に同梱された電源コードセットを利用し、他製品 の電源コードセットを使用しないで下さい。 When using a fiber optic port, never look at the transmit laser while it is powered on. Also, never look directly at the fiber TX port and fiber cable ends when they are powered on. Ne regardez jamais le laser tant qu'il est sous tension. Ne regardez jamais directement le port TX (Transmission) à fibres optiques et les embouts de câbles à fibres optiques tant qu'ils sont sous tension. Niemals ein Übertragungslaser betrachten, während dieses eingeschaltet ist. Niemals direkt auf den Faser-TX-Anschluß und auf die Faserkabelenden schauen, während diese eingeschaltet sind. CLASS I LASER DEVICE DISPOSITIF LASER DE CLASSE I LASERGER DER KLASSE I ÄT

– 8 – POWER CORD SAFETY Please read the following safety information carefully before installing the switch: WARNING: Installation and removal of the unit must be carried out by qualified personnel only. ◆ The unit must be connected to an earthed (grounded) outlet to comply with international safety standards. ◆ Do not connect the unit to an A.C. outlet (power supply) without an earth (ground) connection. ◆ The appliance coupler (the connector to the unit and not the wall plug) must have a configuration for mating with an EN 60320/IEC 320 appliance inlet. ◆ The socket outlet must be near to the unit and easily accessible. You can only remove power from the unit by disconnecting the power cord from the outlet. ◆ This unit operates under SELV (Safety Extra Low Voltage) conditions according to IEC 60950. The conditions are only maintained if the equipment to which it is connected also operates under SELV conditions. France and Peru only This unit cannot be powered from IT† supplies. If your supplies are of IT type, this unit must be powered by 230 V (2P+T) via an isolation transformer ratio 1:1, with the secondary connection point labelled Neutral, connected directly to earth (ground). † Impédance à la terre IMPORTANT! Before making connections, make sure you have the correct cord set. Check it (read the label on the cable) against the following:

– 9 – Veuillez lire à fond l'information de la sécurité suivante avant d'installer le Switch: AVERTISSEMENT: L’installation et la dépose de ce groupe doivent être confiés à un personnel qualifié. ◆ Ne branchez pas votre appareil sur une prise secteur (alimentation électrique) lorsqu'il n'y a pas de connexion de mise à la terre (mise à la masse). ◆ Vous devez raccorder ce groupe à une sortie mise à la terre (mise à la masse) afin de respecter les normes internationales de sécurité. ◆ Le coupleur d’appareil (le connecteur du groupe et non pas la prise murale) doit respecter une configuration qui permet un branchement sur une entrée d’appareil EN 60320/IEC 320. Power Cord Set U.S.A. and Canada The cord set must be UL-approved and CSA certified. The minimum specifications for the flexible cord are: - No. 18 AWG - not longer than 2 meters, or 16 AWG. - Type SV or SJ - 3-conductor The cord set must have a rated current capacity of at least 10 A The attachment plug must be an earth-grounding type with NEMA 5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V) configuration. Denmark The supply plug must comply with Section 107-2-D1, Standard DK2-1a or DK2-5a. Switzerland The supply plug must comply with SEV/ASE 1011. U.K. The supply plug must comply with BS1363 (3-pin 13 A) and be fitted with a 5 A fuse which complies with BS1362. The mains cord must be or marked and be of type HO3VVF3GO.75 (minimum). Europe The supply plug must comply with CEE7/7 (“SCHUKO”). The mains cord must be or marked and be of type HO3VVF3GO.75 (minimum). IEC-320 receptacle.

– 10 – ◆ La prise secteur doit se trouver à proximité de l’appareil et son accès doit être facile. Vous ne pouvez mettre l’appareil hors circuit qu’en débranchant son cordon électrique au niveau de cette prise. ◆ L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme IEC 60950. Ces conditions ne sont maintenues que si l’équipement auquel il est raccordé fonctionne dans les mêmes conditions. France et Pérou uniquement: Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos alimentations sont du type impédance à la terre, ce groupe doit être alimenté par une tension de 230 V (2 P+T) par le biais d’un transformateur d’isolement à rapport 1:1, avec un point secondaire de connexion portant l’appellation Neutre et avec raccordement direct à la terre (masse). Cordon électrique - Il doit être agréé dans le pays d’utilisation Etats-Unis et Canada: Le cordon doit avoir reçu l’homologation des UL et un certificat de la CSA. Les spécifications minimales pour un cable flexible sont AWG No. 18, ouAWG No. 16 pour un cable de longueur inférieure à 2 mètres. - type SV ou SJ - 3 conducteurs Le cordon doit être en mesure d’acheminer un courant nominal d’au moins 10 A. La prise femelle de branchement doit être du type à mise à la terre (mise à la masse) et respecter la configuration NEMA 5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V). Danemark: La prise mâle d’alimentation doit respecter la section 107-2 D1 de la norme DK2 1a ou DK2 5a. Suisse: La prise mâle d’alimentation doit respecter la norme SEV/ASE 1011. Europe La prise secteur doit être conforme aux normes CEE 7/7 (“SCHUKO”) LE cordon secteur doit porter la mention ou et doit être de type HO3VVF3GO.75 (minimum).

– 11 – Bitte unbedingt vor dem Einbauen des Switches die folgenden Sicherheitsanweisungen durchlesen: WARNUNG: Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. ◆ Das Gerät sollte nicht an eine ungeerdete Wechselstromsteckdose angeschlossen werden. ◆ Das Gerät muß an eine geerdete Steckdose angeschlossen werden, welche die internationalen Sicherheitsnormen erfüllt. ◆ Der Gerätestecker (der Anschluß an das Gerät, nicht der Wandsteckdosenstecker) muß einen gemäß EN 60320/IEC 320 konfigurierten Geräteeingang haben. ◆ Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein. Die Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden. ◆ Der Betrieb dieses Geräts erfolgt unter den SELV-Bedingungen (Sicherheitskleinstspannung) gemäß IEC 60950. Diese Bedingungen sind nur gegeben, wenn auch die an das Gerät angeschlossenen Geräte unter SELV-Bedingungen betrieben werden. Stromkabel. Dies muss von dem Land, in dem es benutzt wird geprüft werden: Schweiz Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen einhalten. Europe Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mindestanforderung) sein und die Aufschrift oder tragen. Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).

– 12 – WARNINGS AND CAUTIONARY MESSAGES ENVIRONMENTAL STATEMENTS The manufacturer of this product endeavours to sustain an environmentally- friendly policy throughout the entire production process. This is achieved though the following means: ◆ Adherence to national legislation and regulations on environmental production standards. ◆ Conservation of operational resources. ◆ Waste reduction and safe disposal of all harmful un-recyclable by-products. ◆ Recycling of all reusable waste content. ◆ Design of products to maximize recyclables at the end of the product’s life span. WARNING: This product does not contain any serviceable user parts. WARNING: Installation and removal of the unit must be carried out by qualified personnel only. WARNING: When connecting this device to a power outlet, connect the field ground lead on the tri-pole power plug to a valid earth ground line to prevent electrical hazards. WARNING: This switch uses lasers to transmit signals over fiber optic cable. The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, you should never look directly at a transmit port when it is powered on. CAUTION: Wear an anti-static wrist strap or take other suitable measures to prevent electrostatic discharge when handling this equipment. CAUTION: Do not plug a phone jack connector in the RJ-45 port. This may damage this device. CAUTION: Use only twisted-pair cables with RJ-45 connectors that conform to FCC standards.

– 13 – ◆ Continual monitoring of safety standards. END OF PRODUCT LIFE SPAN This product is manufactured in such a way as to allow for the recovery and disposal of all included electrical components once the product has reached the end of its life. MANUFACTURING MATERIALS There are no hazardous nor ozone-depleting materials in this product. DOCUMENTATION All printed documentation for this product uses biodegradable paper that originates from sustained and managed forests. The inks used in the printing process are non-toxic.

ABOUT THIS GUIDE PURPOSE This guide details the hardware features of the switch, including the physical and performance-related characteristics, and how to install the switch. AUDIENCE The guide is intended for use by network administrators who are responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of LANs (Local Area Networks). CONVENTIONS The following conventions are used throughout this guide to show information: RELATED PUBLICATIONS The following publication gives specific information on how to operate and use the management functions of the switch: The Management Guide Also, as part of the switch’s software, there is an online web-based help that describes all management related features. NOTE: Emphasizes important information or calls your attention to related features or instructions. CAUTION: Alerts you to a potential hazard that could cause loss of data, or damage the system or equipment. WARNING: Alerts you to a potential hazard that could cause personal injury.

– 16 – REVISION HISTORY This section summarizes the changes in each revision of this guide. MAY 2009 REVISION This is the first revision of this guide.

CONTENTS COMPLIANCES AND SAFETY STATEMENTS 5 ABOUT THIS GUIDE 15 CONTENTS 17 TABLES 19 FIGURES 21 1 INTRODUCTION 23 Overview 23 Description of Hardware 24 2 NETWORK PLANNING 29 Introduction to Switching 29 Application Examples 30 Application Notes 34 3 INSTALLING THE SWITCH 35 Selecting a Site 35 Ethernet Cabling 36 Equipment Checklist 37 Mounting 38 Installing an Optional SFP Transceiver 41 Connecting to a Power Source 42 Connecting to the Console Port 43 4 MAKING NETWORK CONNECTIONS 45 Connecting Network Devices 45 Twisted-Pair Devices 45

Fiber Optic SFP Devices 48 Connectivity Rules 50 Cable Labeling and Connection Records 52 A TROUBLESHOOTING 53 Diagnosing Switch Indicators 53 Power and Cooling Problems 54 Installation 54 In-Band Access 54 B CABLES 55 Twisted-Pair Cable and Pin Assignments 55 Fiber Standards 59 C SPECIFICATIONS 61 Physical Characteristics 61 Switch Features 63 Management Features 63 Standards 64 Compliances 64 GLOSSARY 65 INDEX 71

TABLES Table 1: Supported SFP Transceivers 25 Table 2: Port Status LEDs 26 Table 3: System Status LEDs 26 Table 4: Serial Cable Wiring 43 Table 5: Maximum 1000BASE-T Gigabit Ethernet Cable Length 50 Table 6: Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths 50 Table 7: Maximum 1000BASE-LX Gigabit Ethernet Cable Length 51 Table 8: Maximum 1000BASE-LH Gigabit Ethernet Cable Length 51 Table 9: Maximum Fast Ethernet Cable Lengths 51 Table 10: Maximum Ethernet Cable Length 51 Table 11: Troubleshooting Chart 53 Table 12: 10/100BASE-TX MDI and MDI-X Port Pinouts 56 Table 13: 1000BASE-T MDI and MDI-X Port Pinouts 58 Table 14: Fiber Standards 59

FIGURES Figure 1: Front and Rear Panels 23 Figure 2: Port LEDs 26 Figure 3: Power Supply Socket 27 Figure 4: Collapsed Backbone 30 Figure 5: Network Aggregation Plan 31 Figure 6: Remote Connections with Fiber Cable 32 Figure 7: Making VLAN Connections 33 Figure 8: RJ-45 Connections 36 Figure 9: Attaching the Brackets 39 Figure 10: Installing the Switch in a Rack 39 Figure 11: Attaching the Adhesive Feet 40 Figure 12: Inserting an SFP Transceiver into a Slot 41 Figure 13: Power Socket 42 Figure 14: Serial Port (DB-9 DTE) Pin-Out 43 Figure 15: Making Twisted-Pair Connections 46 Figure 16: Network Wiring Connections 47 Figure 17: Making Fiber Port Connections 49 Figure 18: RJ-45 Connector Pin Numbers 55 Figure 19: Straight-through Wiring 57 Figure 20: Crossover Wiring 57

1 INTRODUCTION OVERVIEW The ES4528V is a Gigabit Ethernet Layer 2 switch with 28 1000BASE-T ports, four of which operate in combination with four Small Form Factor Pluggable (SFP) transceiver slots1 (see Figure 1-1, Ports 25-28). The switch also includes an SNMP-based management agent, which provides both in-band and out-of- band access for managing the switch. The ES4528V provides a broad range of powerful features for Layer 2 switching, delivering reliability and consistent performance for your network traffic. It brings order to poorly performing networks by segregating them into separate broadcast domains with IEEE 802.1Q compliant VLANs, and empowers multimedia applications with multicast switching and CoS services. Figure 1: Front and Rear Panels 1. If an SFP transceiver is plugged in, the corresponding RJ-45 port is disabled for ports 25-28. 28 27 100-240V ~ 50-60Hz, 2A MAX 1000 Mbps RJ-45 Ports Port Status Indicators 1000BASE-T/SFP Ports System Indicators Power Socket Console Port

Description of Hardware – 24 – SWITCH ARCHITECTURE The switch employs a wire-speed, non-blocking switching fabric. This permits simultaneous wire-speed transport of multiple packets at low latency on all ports. The switch also features full-duplex capability on all ports, which effectively doubles the bandwidth of each connection. This switch uses store-and-forward switching to ensure maximum data integrity. With store-and-forward switching, the entire packet must be received into a buffer and checked for validity before being forwarded. This prevents errors from being propagated throughout the network. NETWORK MANAGEMENT OPTIONS With a comprehensive array of LEDs, the switch provides “at a glance” monitoring of network and port status. The switch can be managed over the network with a web browser or Telnet application, or via a direct connection to the console port. The switch includes a built-in network management agent that allows it to be managed in-band using SNMP or RMON (Groups 1, 2, 3, 9) protocols. It also has an RS-232 serial port (DB-9 connector) on the front panel for out-of-band management. A PC may be connected to this port for configuration and monitoring out-of-band via a null-modem serial cable. (See Appendix B for wiring options.) For a detailed description of the management features, refer to the Management Guide. DESCRIPTION OF HARDWARE 1000BASE-T PORTS The switch contains 28 1000BASE-T RJ-45 ports. All RJ-45 ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. (See “1000BASE-T Pin Assignments” on page 58.) Each of these ports support auto-negotiation, so the optimum transmission mode (half or full duplex), and data rate (10, 100, or 1000 Mbps) can be selected automatically2. 2. The 1000BASE-T standard does not support forced mode. Auto-negotiation must always be used to establish a connection over any 1000BASE-T port or trunk.

Description of Hardware – 25 – Each port also supports IEEE 802.3x auto-negotiation of flow control, so the switch can automatically prevent port buffers from becoming saturated. SFP TRANSCEIVER SLOTS The Small Form Factor Pluggable (SFP) transceiver slots are shared with four of the RJ-45 ports (ports 25-28). In the default configuration, if an SFP transceiver (purchased separately) is installed in a slot and has a valid link on the port, the associated RJ-45 port is disabled. The switch can also be configured to force the use of an RJ-45 port or SFP slot, as required. The following table shows a list of transceiver types which have been tested with the switch. For an updated list of vendors supplying these transceivers, contact your local EdgeCore dealer. For information on the recommended standards for fiber optic cabling, see “1000 Mbps Gigabit Ethernet Collision Domain” on page 50. Table 1: Supported SFP Transceivers Media Standard Cable Diameter (microns) Wavelength (nm) Maximum Distance* * Maximum distance may vary for different SFP vendors. 1000BASE-SX 50/125 850 700 m 62.5/125 850 400 m 1000BASE-LX 50/125 1300 550 m 62.5/125 1300 550 m 9/125 1300 10 km 1000BASE-LH 9/125 1310 35 km 1550 80 km 1000BASE-T 100 m

Description of Hardware – 26 – PORT AND SYSTEM STATUS LEDS The switch includes a display panel for key system and port indications that simplify installation and network troubleshooting. The LEDs, which are located on the front panel for easy viewing, are shown below and described in the following tables. Figure 2: Port LEDs Table 2: Port Status LEDs LED Condition Status (Link/Activity) On/Flashing Yellow Port has established a valid 10/100 Mbps network connection. Flashing indicates activity. On/Flashing Green Port has established a valid 1000 Mbps network connection. Flashing indicates activity. Off There is no valid link on the port. Table 3: System Status LEDs LED Condition Status PWR On Green The unit’s internal power supply is operating normally. Off The unit has no power connected. Port Status LEDs System Status LEDs

Description of Hardware – 27 – POWER SUPPLY SOCKET There is one power socket on the rear panel of the switch. The standard power socket is for the AC power cord. Figure 3: Power Supply Socket DIAG On Green The system diagnostic test has completed successfully. On Yellow The system diagnostic test is in progress. Flashing Yellow The system diagnostic test has detected a fault. Flashing Green and Yellow The system is booting up. Table 3: System Status LEDs (Continued) LED Condition Status 100-240V ~ 50-60Hz, 2A MAX

2 NETWORK PLANNING INTRODUCTION TO SWITCHING A network switch allows simultaneous transmission of multiple packets via non- crossbar switching. This means that it can partition a network more efficiently than bridges or routers. The switch has, therefore, been recognized as one of the most important building blocks for today’s networking technology. When performance bottlenecks are caused by congestion at the network access point (such as the network card for a high-volume file server), the device experiencing congestion (server, power user, or hub) can be attached directly to a switched port. And, by using full-duplex mode, the bandwidth of the dedicated segment can be doubled to maximize throughput. When networks are based on repeater (hub) technology, the distance between end stations is limited by a maximum hop count. However, a switch turns the hop count back to zero. So subdividing the network into smaller and more manageable segments, and linking them to the larger network by means of a switch, removes this limitation. A switch can be easily configured in any Ethernet, Fast Ethernet, or Gigabit Ethernet network to significantly boost bandwidth while using conventional cabling and network cards.

Application Examples – 30 – APPLICATION EXAMPLES The switch is not only designed to segment your network, but also to provide a wide range of options in setting up network connections. Some typical applications are described below. COLLAPSED BACKBONE The switch is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit Ethernet installations where significant growth is expected in the near future. You can easily build on this basic configuration, adding direct full-duplex connections to workstations or servers. When the time comes for further expansion, just connect to another hub or switch using one of the Fast Ethernet ports built into the front panel or a Gigabit Ethernet port on a plug-in SFP transceiver. In the figure below, the switch is operating as a collapsed backbone for a small LAN. It is providing dedicated 10 Mbps full-duplex connections to workstations, 100 Mbps full-duplex connections to power users, and 1 Gbps full-duplex connections to servers. Figure 4: Collapsed Backbone 28 27

Application Examples – 31 – NETWORK AGGREGATION PLAN With 28 parallel bridging ports (i.e., 28 distinct collision domains), the switch can collapse a complex network down into a single efficient bridged node, increasing overall bandwidth and throughput. In the figure below, the 1000BASE-T ports on the switch are providing 100 Mbps connectivity for up to 28 segments. In addition, the switch is also connecting several servers at 1000 Mbps. Figure 5: Network Aggregation Plan Server Farm 10/100 Mbps Segments ... ... 1000 Mbps Segments 28 27

Application Examples – 32 – REMOTE CONNECTIONS WITH FIBER CABLE Fiber optic technology allows for longer cabling than any other media type. A 1000BASE-SX (MMF) link can connect to a site up to 550 meters away, a 1000BASE-LX (SMF) link up to 5 km, and a 1000BASE-LH link up to 70 km. This allows the switch to serve as a collapsed backbone, providing direct connectivity for a widespread LAN. The figure below illustrates the switch connecting multiple segments with fiber cable. Figure 6: Remote Connections with Fiber Cable ... ... Headquarters 1000BASE-LX SMF (5 kilometers) Remote Switch 10/100/1000 Mbps Segments 1000BASE-SX MMF (550 meters) Remote Switch Server Farm 28 27 28 27 28 27

Application Examples – 33 – MAKING VLAN CONNECTIONS This switch supports VLANs which can be used to organize any group of network nodes into separate broadcast domains. VLANs confine broadcast traffic to the originating group, and can eliminate broadcast storms in large networks. This provides a more secure and cleaner network environment. VLANs can be based on untagged port groups, or traffic can be explicitly tagged to identify the VLAN group to which it belongs. Untagged VLANs can be used for small networks attached to a single switch. However, tagged VLANs should be used for larger networks, and all the VLANs assigned to the inter-switch links. Figure 7: Making VLAN Connections NOTE: When connecting to a switch that does not support IEEE 802.1Q VLAN tags, use untagged ports. Finance Marketing VLAN 3 Untagged Ports VLAN unaware switch Tagged Port VLAN aware switch Tagged Ports Finance VLAN 3 R&D VLAN 2 Testing R&D Testing VLAN 1 VLAN 2 VLAN 4 VLAN 1 28 27

Application Notes – 34 – APPLICATION NOTES 1. Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in half-duplex mode. 2. Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub. 3. Based on recommended standards, the length of fiber optic cable for a single switched link should not exceed: ■ 1000BASE-SX: 550 m (1805 ft) for multimode fiber. ■ 1000BASE-LX: 5 km (3.1 miles) for single-mode fiber. ■ 1000BASE-LH: 70 km (43.5 miles) for single-mode fiber. However, power budget constraints must also be considered when calculating the maximum cable length for your specific environment.

3 INSTALLING THE SWITCH SELECTING A SITE Switch units can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a location. ◆ The site should: ■ be at the center of all the devices you want to link and near a power outlet. ■ be able to maintain its temperature within 0 to 45 °C (32 to 113 °F) and its humidity within 10% to 90%, non-condensing ■ provide adequate space (approximately two inches) on all sides for proper air flow ■ be accessible for installing, cabling and maintaining the devices ■ allow the status LEDs to be clearly visible ◆ Make sure twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures and other sources of electrical interference, such as radios and transmitters. ◆ Make sure that the unit is connected to a separate grounded power outlet that provides 100 to 240 VAC, 50 to 60 Hz, is within 2 m (6.6 feet) of each device and is powered from an independent circuit breaker. As with any equipment, using a filter or surge suppressor is recommended.

Ethernet Cabling – 36 – ETHERNET CABLING To ensure proper operation when installing the switch into a network, make sure that the current cables are suitable for 10BASE-T, 100BASE-TX or 1000BASE-T operation. Check the following criteria against the current installation of your network: ◆ Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP) cables with RJ-45 connectors; Category 3 or better for 10BASE-T, Category 5 or better for 100BASE-TX, and Category 5, 5e or 6 for 1000BASE-T. ◆ Protection from radio frequency interference emissions ◆ Electrical surge suppression ◆ Separation of electrical wires (switch related or other) and electromagnetic fields from data based network wiring ◆ Safe connections with no damaged cables, connectors or shields Figure 8: RJ-45 Connections RJ-45 Connector

Equipment Checklist – 37 – EQUIPMENT CHECKLIST After unpacking this switch, check the contents to be sure you have received all the components. Then, before beginning the installation, be sure you have all other necessary installation equipment. PACKAGE CONTENTS ◆ Gigabit Ethernet Switch (ES4528V) ◆ Four adhesive foot pads ◆ Bracket Mounting Kit containing two brackets and eight screws for attaching the brackets to the switch ◆ Power Cord—either US, Continental Europe or UK ◆ RS-232 console cable ◆ This Installation Guide ◆ Management Guide CD OPTIONAL RACK-MOUNTING EQUIPMENT If you plan to rack-mount the switch, be sure to have the following equipment available: ◆ Four mounting screws for each device you plan to install in a rack—these are not included ◆ A screwdriver (Phillips or flathead, depending on the type of screws used)

Mounting – 38 – MOUNTING The switch can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow. RACK MOUNTING Before rack mounting the switch, pay particular attention to the following factors: ◆ Temperature: Since the temperature within a rack assembly may be higher than the ambient room temperature, check that the rack-environment temperature is within the specified operating temperature range. (See page 62.) ◆ Mechanical Loading: Do not place any equipment on top of a rack-mounted unit. ◆ Circuit Overloading: Be sure that the supply circuit to the rack assembly is not overloaded. ◆ Grounding: Rack-mounted equipment should be properly grounded. Particular attention should be given to supply connections other than direct connections to the mains. To rack-mount devices: 1. Attach the brackets to the device using the screws provided in the Bracket Mounting Kit.

Mounting – 39 – Figure 9: Attaching the Brackets 2. Mount the device in the rack, using four rack-mounting screws (not provided). Be sure to secure the lower rack-mounting screws first to prevent the brackets being bent by the weight of the switch. Figure 10: Installing the Switch in a Rack 28 27 28 27

Mounting – 40 – 3. If installing a single switch only, turn to “Connecting to a Power Source” at the end of this chapter. 4. If installing multiple switches, mount them in the rack, one below the other, in any order. DESKTOP OR SHELF MOUNTING 1. Attach the four adhesive feet to the bottom of the first switch. Figure 11: Attaching the Adhesive Feet 2. Set the device on a flat surface near an AC power source, making sure there are at least two inches of space on all sides for proper air flow. 3. If installing a single switch only, go to “Connecting to a Power Source” at the end of this chapter. 4. If installing multiple switches, attach four adhesive feet to each one. Place each device squarely on top of the one below, in any order. 28 27

Installing an Optional SFP Transceiver – 41 – INSTALLING AN OPTIONAL SFP TRANSCEIVER Figure 12: Inserting an SFP Transceiver into a Slot The SFP slots support the following optional SFP transceivers: ◆ 1000BASE-SX ◆ 1000BASE-LX ◆ 1000BASE-LH To install an SFP transceiver, do the following: 1. Consider network and cabling requirements to select an appropriate SFP transceiver type. 2. Insert the transceiver with the optical connector facing outward and the slot connector facing down. Note that SFP transceivers are keyed so they can only be installed in one orientation. 3. Slide the SFP transceiver into the slot until it clicks into place. 28 27

Connecting to a Power Source – 42 – CONNECTING TO A POWER SOURCE To connect a switch to a power source: 1. Insert the power cable plug directly into the AC socket located at the back of the switch. Figure 13: Power Socket 2. Plug the other end of the cable into a grounded, 3-pin, AC power source. 3. Check the front-panel LEDs as the device is powered on to be sure the PWR LED is lit. If not, check that the power cable is correctly plugged in. NOTE: SFP transceivers are hot-swappable. The switch does not need to be powered off before installing or removing a transceiver. However, always first disconnect the network cable before removing a transceiver. NOTE: SFP transceivers are not provided in the switch package. NOTE: For International use, you may need to change the AC line cord. You must use a line cord set that has been approved for the socket type in your country. 100-240V ~ 50-60Hz, 2A MAX

Connecting to the Console Port – 43 – CONNECTING TO THE CONSOLE PORT The DB-9 serial port on the switch’s back panel is used to connect to the switch for out-of-band console configuration. The command-line-driven configuration program can be accessed from a terminal or a PC running a terminal emulation program. The pin assignments used to connect to the serial port are provided in the following table. Figure 14: Serial Port (DB-9 DTE) Pin-Out WIRING MAP FOR SERIAL CABLE The serial port’s configuration requirements are as follows: ◆ Default Baud rate—115,200 bps ◆ Character Size—8 Characters ◆ Parity—None ◆ Stop bit—One Table 4: Serial Cable Wiring Switch’s 9-Pin Serial Port Null Modem PC’s 9-Pin DTE Port 2 RXD (receive data) <--------------------- 3 TXD (transmit data) 3 TXD (transmit data) ---------------------> 2 RXD (receive data) 5 SGND (signal ground) ----------------------- 5 SGND (signal ground) No other pins are used. 1 5 6 9

Connecting to the Console Port – 44 – ◆ Data bits—8 ◆ Flow control—none

4 MAKING NETWORK CONNECTIONS CONNECTING NETWORK DEVICES The switch is designed to be connected to 10 or 100 Mbps network cards in PCs and servers, as well as to other switches and hubs. It may also be connected to remote devices using optional 1000BASE-SX, 1000BASE-LX, or 1000BASE-LH SFP transceivers. TWISTED-PAIR DEVICES Each device requires an unshielded twisted-pair (UTP) cable with RJ-45 connectors at both ends. Use Category 5, 5e or 6 cable for 1000BASE-T connections, Category 5 or better for 100BASE-TX connections, and Category 3 or better for 10BASE-T connections. CABLING GUIDELINES The RJ-45 ports on the switch support automatic MDI/MDI-X pinout configuration, so you can use standard straight-through twisted-pair cables to connect to any other network device (PCs, servers, switches, routers, or hubs). See Appendix B for further information on cabling. Do not plug a phone jack connector into an RJ-45 port. This will damage the switch. Use only twisted-pair cables with RJ-45 connectors that conform to FCC standards. CAUTION: Do not plug a phone jack connector into an RJ-45 port. This will damage the switch. Use only twisted-pair cables with RJ-45 connectors that conform to FCC standards.

Twisted-Pair Devices – 46 – CONNECTING TO PCS, SERVERS, HUBS AND SWITCHES 1. Attach one end of a twisted-pair cable segment to the device’s RJ-45 connector. Figure 15: Making Twisted-Pair Connections 2. If the device is a network card and the switch is in the wiring closet, attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet. (See the section “Network Wiring Connections.”) Otherwise, attach the other end to an available port on the switch. Make sure each twisted pair cable does not exceed 100 meters (328 ft) in length. 3. As each connection is made, the Link LED (on the switch) corresponding to each port will light green (1000 Mbps) or yellow (10/100 Mbps) to indicate that the connection is valid. NOTE: Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub.

Twisted-Pair Devices – 47 – NETWORK WIRING CONNECTIONS Today, the punch-down block is an integral part of many of the newer equipment racks. It is actually part of the patch panel. Instructions for making connections in the wiring closet with this type of equipment follows. 1. Attach one end of a patch cable to an available port on the switch, and the other end to the patch panel. 2. If not already in place, attach one end of a cable segment to the back of the patch panel where the punch-down block is located, and the other end to a modular wall outlet. 3. Label the cables to simplify future troubleshooting. See “Cable Labeling and Connection Records” on page 52. Figure 16: Network Wiring Connections Equipment Rack (side view) Switch Patch Panel Punch-Down Block Wall 28 27

Fiber Optic SFP Devices – 48 – FIBER OPTIC SFP DEVICES An optional Gigabit SFP transceiver (1000BASE-SX, 1000BASE-LX or 1000BASE- LH) can be used for a backbone connection between switches, or for connecting to a high-speed server. Each single-mode fiber port requires 9/125 micron single-mode fiber optic cable with an LC connector at both ends. Each multimode fiber optic port requires 50/ 125 or 62.5/125 micron multimode fiber optic cabling with an LC connector at both ends. 1. Remove and keep the LC port’s rubber plug. When not connected to a fiber cable, the rubber plug should be replaced to protect the optics. 2. Check that the fiber terminators are clean. You can clean the cable plugs by wiping them gently with a clean tissue or cotton ball moistened with a little ethanol. Dirty fiber terminators on fiber optic cables will impair the quality of the light transmitted through the cable and lead to degraded performance on the port. 3. Connect one end of the cable to the LC port on the switch and the other end to the LC port on the other device. Since LC connectors are keyed, the cable can be attached in only one orientation. WARNING: This switch uses lasers to transmit signals over fiber optic cable. The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, you should never look directly at a transmit port when it is powered on. WARNING: When selecting a fiber SFP device, considering safety, please make sure that it can function at a temperature that is not less than the recommended maximum operational temperature of the product. You must also use an approved Laser Class 1 SFP transceiver.

Fiber Optic SFP Devices – 49 – Figure 17: Making Fiber Port Connections 4. As a connection is made, check the Link LED on the switch corresponding to the port to be sure that the connection is valid. The 1000BASE-SX, 1000BASE-LX, 1000BASE-LH fiber optic ports operate at 1 Gbps, full duplex, with auto-negotiation of flow control. The maximum length for fiber optic cable operating at Gigabit speed will depend on the fiber type as listed under “1000 Mbps Gigabit Ethernet Collision Domain” on page 50. 28 27 27

Connectivity Rules – 50 – CONNECTIVITY RULES When adding hubs (repeaters) to your network, please follow the connectivity rules listed in the manuals for these products. However, note that because switches break up the path for connected devices into separate collision domains, you should not include the switch or connected cabling in your calculations for cascade length involving other devices. 1000BASE-T CABLE REQUIREMENTS All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T, providing that all four wire pairs are connected. However, it is recommended that for all critical connections, or any new cable installations, Category 5e (enhanced Category 5) or Category 6 cable should be used. The Category 5e and 6 specifications include test parameters that are only recommendations for Category 5. Therefore, the first step in preparing existing Category 5 cabling for running 1000BASE-T is a simple test of the cable installation to be sure that it complies with the IEEE 802.3-2005 standards. 1000 MBPS GIGABIT ETHERNET COLLISION DOMAIN Table 5: Maximum 1000BASE-T Gigabit Ethernet Cable Length Cable Type Maximum Cable Length Connector Category 5, 5e, or 6 100-ohm UTP or STP 100 m (328 ft) RJ-45 Table 6: Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths Fiber Size Fiber Bandwidth Maximum Cable Length Connector 62.5/125 micron multimode fiber 160 MHz/km 2-220 m (7-722 ft) LC 200 MHz/km 2-275 m (7-902 ft) LC 50/125 micron multimode fiber 400 MHz/km 2-500 m (7-1641 ft) LC 500 MHz/km 2-550 m (7-1805 ft) LC

Connectivity Rules – 51 – 100 MBPS FAST ETHERNET COLLISION DOMAIN 10 MBPS ETHERNET COLLISION DOMAIN Table 7: Maximum 1000BASE-LX Gigabit Ethernet Cable Length Fiber Size Fiber Bandwidth Maximum Cable Length Connector 9/125 micron single- mode fiber N/A 2 m - 5 km (7 ft - 3.2 miles) LC Table 8: Maximum 1000BASE-LH Gigabit Ethernet Cable Length Fiber Size Fiber Bandwidth Maximum Cable Length Connector 9/125 micron single- mode fiber N/A 2 m - 70 km (7 ft - 43.5 miles) LC Table 9: Maximum Fast Ethernet Cable Lengths Type Cable Type Max. Cable Length Connector 100BASE-TX Category 5 or better 100-ohm UTP or STP 100 m (328 ft) RJ-45 Table 10: Maximum Ethernet Cable Length Type Cable Type Max. Cable Length Connector 10BASE-T Category 3 or better 100-ohm UTP 100 m (328 ft) RJ-45

Cable Labeling and Connection Records – 52 – CABLE LABELING AND CONNECTION RECORDS When planning a network installation, it is essential to label the opposing ends of cables and to record where each cable is connected. Doing so will enable you to easily locate inter-connected devices, isolate faults and change your topology without need for unnecessary time consumption. To best manage the physical implementations of your network, follow these guidelines: ◆ Clearly label the opposing ends of each cable. ◆ Using your building’s floor plans, draw a map of the location of all network- connected equipment. For each piece of equipment, identify the devices to which it is connected. ◆ Note the length of each cable and the maximum cable length supported by the switch ports. ◆ For ease of understanding, use a location-based key when assigning prefixes to your cable labeling. ◆ Use sequential numbers for cables that originate from the same equipment. ◆ Differentiate between racks by naming accordingly. ◆ Label each separate piece of equipment. ◆ Display a copy of your equipment map, including keys to all abbreviations at each equipment rack.

A TROUBLESHOOTING DIAGNOSING SWITCH INDICATORS Table 11: Troubleshooting Chart Symptom Action PWR LED is Off ◆ Check connections between the switch, the power cord and the wall outlet. ◆ Contact your dealer for assistance. DIAG LED Flashing Yellow ◆ Power cycle the switch to try and clear the condition. ◆ If the condition does not clear, contact your dealer for assistance. Link LED is Off ◆ Verify that the switch and attached device are powered on. ◆ Be sure the cable is plugged into both the switch and corresponding device. ◆ If the switch is installed in a rack, check the connections to the punch-down block and patch panel. ◆ Verify that the proper cable type is used and its length does not exceed specified limits. ◆ Check the adapter on the attached device and cable connections for possible defects. Replace the defective adapter or cable if necessary.

Power and Cooling Problems – 54 – POWER AND COOLING PROBLEMS If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet. If you still cannot isolate the problem, the internal power supply may be defective. INSTALLATION Verify that all system components have been properly installed. If one or more components appear to be malfunctioning (such as the power cord or network cabling), test them in an alternate environment where you are sure that all the other components are functioning properly. IN-BAND ACCESS You can access the management agent in the switch from anywhere within the attached network using Telnet, a web browser, or other network management software tools. However, you must first configure the switch with a valid IP address, subnet mask, and default gateway. If you have trouble establishing a link to the management agent, check to see if you have a valid network connection. Then verify that you entered the correct IP address. Also, be sure the port through which you are connecting to the switch has not been disabled. If it has not been disabled, then check the network cabling that runs between your remote location and the switch. NOTE: The management agent accepts up to four simultaneous Telnet sessions. If the maximum number of sessions already exists, an additional Telnet connection will not be able to log into the system.

B CABLES TWISTED-PAIR CABLE AND PIN ASSIGNMENTS For 10/100BASE-TX connections, the twisted-pair cable must have two pairs of wires. For 1000BASE-T connections the twisted-pair cable must have four pairs of wires. Each wire pair is identified by two different colors. For example, one wire might be green and the other, green with white stripes. Also, an RJ-45 connector must be attached to both ends of the cable. The figure below illustrates how the pins on the RJ-45 connector are numbered. Be sure to hold the connectors in the same orientation when attaching the wires to the pins. Figure 18: RJ-45 Connector Pin Numbers CAUTION: DO NOT plug a phone jack connector into any RJ-45 port. Use only twisted-pair cables with RJ-45 connectors that conform with FCC standards. CAUTION: Each wire pair must be attached to the RJ-45 connectors in a specific orientation. 8 1 1 8

Twisted-Pair Cable and Pin Assignments – 56 – 10BASE-T/100BASE-TX PIN ASSIGNMENTS Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 100-ohm Category 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet). The RJ-45 ports on the switch base unit support automatic MDI/MDI-X operation, so you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. In straight-through cable, pins 1, 2, 3, and 6, at one end of the cable, are connected straight through to pins 1, 2, 3, and 6 at the other end of the cable. When using any RJ-45 port on this switch, you can use either straight-through or crossover cable. Note: The “+” and “-” signs represent the polarity of the wires that make up each wire pair. STRAIGHT-THROUGH WIRING If the twisted-pair cable is to join two ports and only one of the ports has an internal crossover (MDI-X), the two pairs of wires must be straight-through. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.) You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet. Table 12: 10/100BASE-TX MDI and MDI-X Port Pinouts Pin MDI Signal Name MDI-X Signal Name 1 Transmit Data plus (TD+) Receive Data plus (RD+) 2 Transmit Data minus (TD-) Receive Data minus (RD-) 3 Receive Data plus (RD+) Transmit Data plus (TD+) 6 Receive Data minus (RD-) Transmit Data minus (TD-) 4,5,7,8 Not used Not used

Twisted-Pair Cable and Pin Assignments – 57 – Figure 19: Straight-through Wiring CROSSOVER WIRING If the twisted-pair cable is to join two ports and either both ports are labeled with an “X” (MDI-X) or neither port is labeled with an “X” (MDI), a crossover must be implemented in the wiring. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.) You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet. Figure 20: Crossover Wiring White/Orange Stripe Orange White/Green Stripe Green 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Straight-through Cable End A End B Blue White/Blue Stripe Brown White/Brown Stripe White/Orange Stripe Orange White/Green Stripe 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Crossover Cable End A End B Green Blue White/Blue Stripe Brown White/Brown Stripe

Twisted-Pair Cable and Pin Assignments – 58 – 1000BASE-T PIN ASSIGNMENTS All 1000BASE-T ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. The table below shows the 1000BASE-T MDI and MDI-X port pinouts. These ports require that all four pairs of wires be connected. Note that for 1000BASE-T operation, all four pairs of wires are used for both transmit and receive. Use 100-ohm Category 5, 5e or 6 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for 1000BASE-T connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet). CABLE TESTING FOR EXISTING CATEGORY 5 CABLE Installed Category 5 cabling must pass tests for Attenuation, Near-End Crosstalk (NEXT), and Far-End Crosstalk (FEXT). This cable testing information is specified in the ANSI/TIA/EIA-TSB-67 standard. Additionally, cables must also pass test parameters for Return Loss and Equal-Level Far-End Crosstalk (ELFEXT). These tests are specified in the ANSI/TIA/EIA-TSB-95 Bulletin, “The Additional Transmission Performance Guidelines for 100 Ohm 4-Pair Category 5 Cabling.” Note that when testing your cable installation, be sure to include all patch cables between switches and end devices. Table 13: 1000BASE-T MDI and MDI-X Port Pinouts Pin MDI Signal Name MDI-X Signal Name 1 Bi-directional Pair A Plus (BI_DA+) Bi-directional Pair B Plus (BI_DB+) 2 Bi-directional Pair A Minus (BI_DA-) Bi-directional Pair B Minus (BI_DB-) 3 Bi-directional Pair B Plus (BI_DB+) Bi-directional Pair A Plus (BI_DA+) 4 Bi-directional Pair C Plus (BI_DC+) Bi-directional Pair D Plus (BI_DD+) 5 Bi-directional Pair C Minus (BI_DC-) Bi-directional Pair D Minus (BI_DD-) 6 Bi-directional Pair B Minus (BI_DB-) Bi-directional Pair A Minus (BI_DA-) 7 Bi-directional Pair D Plus (BI_DD+) Bi-directional Pair C Plus (BI_DC+) 8 Bi-directional Pair D Minus (BI_DD-) Bi-directional Pair C Minus (BI_DC-)

Fiber Standards – 59 – ADJUSTING EXISTING CATEGORY 5 CABLING TO RUN 1000BASE-T If your existing Category 5 installation does not meet one of the test parameters for 1000BASE-T, there are basically three measures that can be applied to try and correct the problem: 1. Replace any Category 5 patch cables with high-performance Category 5e or Category 6 cables. 2. Reduce the number of connectors used in the link. 3. Reconnect some of the connectors in the link. FIBER STANDARDS The International Telecommunication Union (ITU-T) has standardized various fiber types for data networks. These are summarized in the following table. Table 14: Fiber Standards ITU-T Standard Description Application G.651 Multimode Fiber 50/125-micron core Short-reach connections in the 1300- nm or 850-nm band G.652 Non-Dispersion-Shifted Fiber Single-mode, 9/125-micron core Longer spans and extended reach. Optimized for operation in the 1310- nm band. but can also be used in the 1550-nm band G.652.C Low Water Peak Non- Dispersion-Shifted Fiber Single-mode, 9/125-micron core Longer spans and extended reach. Optimized for wavelength-division multiplexing (WDM) transmission across wavelengths from 1285 to 1625 nm. The zero dispersion wavelength is in the 1310-nm region. G.653 Dispersion-Shifted Fiber Single-mode, 9/125-micron core Longer spans and extended reach. Optimized for operation in the region from 1500 to 1600-nm.

Fiber Standards – 60 – G.654 1550-nm Loss-Minimized Fiber Single-mode, 9/125-micron core Extended long-haul applications. Optimized for high-power transmission in the 1500 to 1600-nm region, with low loss in the 1550-nm band. G.655 Non-Zero Dispersion-Shifted Fiber Single-mode, 9/125-micron core Extended long-haul applications. Optimized for high-power dense wavelength-division multiplexing (DWDM) operation in the region from 1500 to 1600-nm. Table 14: Fiber Standards (Continued) ITU-T Standard Description Application

C SPECIFICATIONS PHYSICAL CHARACTERISTICS PORTS 24 10/100/1000BASE-T, with auto-negotiation 4 10/100/1000BASE-T shared with two SFP transceiver slots NETWORK INTERFACE Ports 1-28: RJ-45 connector, auto MDI/X 10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better) 100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better) 1000BASE-T: RJ-45 (100-ohm, UTP or STP cable; Category 5, 5e or 6) *Maximum Cable Length - 100 m (328 ft) BUFFER ARCHITECTURE 64KB packet buffer per port AGGREGATE BANDWIDTH 56 Gbps SWITCHING DATABASE 8K MAC address entries LEDS System: PWR DIAG (Diagnostic), Port: status (link, speed, and activity), 10/100M, 1000M

Physical Characteristics – 62 – WEIGHT 2.22 kg (4.89 lbs) SIZE 44.0 x 17.2 x 4.4 cm (17.32 x 6.77 x 1.73 in.) TEMPERATURE Operating: 0°C to 45°C (32°F to 113°F) Storage: -40°C to 70°C (-40°F to 158°F) HUMIDITY Operating: 10% to 90% (non-condensing) AC INPUT 100 to 240 V, 50-60 Hz, 2A POWER SUPPLY Internal, auto-ranging transformer: 100 to 240 VAC, 50 to 60 Hz POWER CONSUMPTION 32 Watts maximum MAXIMUM CURRENT 0.25 A @ 100 VAC 0.12 A @ 240 VAC

Switch Features – 63 – SWITCH FEATURES FORWARDING MODE Store-and-forward THROUGHPUT Wire speed FLOW CONTROL Full Duplex: IEEE 802.3x Half Duplex: Back pressure MANAGEMENT FEATURES IN-BAND MANAGEMENT SSH, Telnet, SNMP, or HTTP OUT-OF-BAND MANAGEMENT RS-232 DB-9 console port SOFTWARE LOADING TFTP in-band, or XModem out-of-band

Standards – 64 – STANDARDS IEEE 802.3-2005 Ethernet, Fast Ethernet, Gigabit Ethernet Full-duplex flow control Link Aggregation Control Protocol IEEE 802.1D -2004 Spanning Tree Protocol Rapid Spanning Tree Protocol Multiple Spanning Tree Protocol ISO/IEC 8802-3 COMPLIANCES EMISSIONS EN55022 (CISPR 22) Class A EN 61000-3-2/3 FCC Class A CE Mark IMMUNITY EN 61000-4-2/3/4/5/6/8/11 SAFETY CSA (CSA 22.2 NO 60950-1 & UL 60950-1) CB (IEC/EN60950-1)

GLOSSARY 10BASE-T IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3, 4, or 5 UTP cable. 100BASE-TX IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of Category 5 UTP cable. 1000BASE-LH Specification for long-haul Gigabit Ethernet over two strands of 9/125 micron core fiber cable. 1000BASE-LX IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/125, 62.5/ 125 or 9/125 micron core fiber cable. 1000BASE-SX IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/125 or 62.5/125 micron core fiber cable. 1000BASE-T IEEE 802.3ab specification for Gigabit Ethernet over 100-ohm Category 5, 5e or 6 twisted-pair cable (using all four wire pairs). AUTO-NEGOTIATION Signalling method allowing each node to select its optimum operational mode (e.g., speed and duplex mode) based on the capabilities of the node to which it is connected.

BANDWIDTH The difference between the highest and lowest frequencies available for network signals. Also synonymous with wire speed, the actual speed of the data transmission along the cable. COLLISION DOMAIN Single CSMA/CD LAN segment. CSMA/CD CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is the communication method employed by Ethernet, Fast Ethernet, and Gigabit Ethernet. END STATION A workstation, server, or other device that does not forward traffic. ETHERNET A network communication system developed and standardized by DEC, Intel, and Xerox, using baseband transmission, CSMA/CD access, logical bus topology, and coaxial cable. The successor IEEE 802.3 standard provides for integration into the OSI model and extends the physical layer and media with repeaters and implementations that operate on fiber, thin coax and twisted-pair cable. FAST ETHERNET A 100 Mbps network communication system based on Ethernet and the CSMA/ CD access method. FULL DUPLEX Transmission method that allows two network devices to transmit and receive concurrently, effectively doubling the bandwidth of that link. GIGABIT ETHERNET A 1000 Mbps network communication system based on Ethernet and the CSMA/ CD access method.

IEEE Institute of Electrical and Electronic Engineers. IEEE 802.3 Defines carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications. IEEE 802.3AB Defines CSMA/CD access method and physical layer specifications for 1000BASE-T Gigabit Ethernet. (Now incorporated in IEEE 802.3-2002.) IEEE 802.3U Defines CSMA/CD access method and physical layer specifications for 100BASE- TX Fast Ethernet. (Now incorporated in IEEE 802.3-2002.) IEEE 802.3X Defines Ethernet frame start/stop requests and timers used for flow control on full-duplex links. (Now incorporated in IEEE 802.3-2002.) IEEE 802.3Z Defines CSMA/CD access method and physical layer specifications for 1000BASE Gigabit Ethernet. (Now incorporated in IEEE 802.3-2002.) LAN SEGMENT Separate LAN or collision domain. LED Light emitting diode used for monitoring a device or network condition. LOCAL AREA NETWORK (LAN) A group of interconnected computer and support devices.

MEDIA ACCESS CONTROL (MAC) A portion of the networking protocol that governs access to the transmission medium, facilitating the exchange of data between network nodes. MIB An acronym for Management Information Base. It is a set of database objects that contains information about the device. MODAL BANDWIDTH Bandwidth for multimode fiber is referred to as modal bandwidth because it varies with the modal field (or core diameter) of the fiber. Modal bandwidth is specified in units of MHz per km, which indicates the amount of bandwidth supported by the fiber for a one km distance. NETWORK DIAMETER Wire distance between two end stations in the same collision domain. RJ-45 CONNECTOR A connector for twisted-pair wiring. SWITCHED PORTS Ports that are on separate collision domains or LAN segments. TIA Telecommunications Industry Association TRANSMISSION CONTROL PROTOCOL/INTERNET PROTOCOL (TCP/IP) Protocol suite that includes TCP as the primary transport protocol, and IP as the network layer protocol. USER DATAGRAM PROTOCOL (UDP) UDP provides a datagram mode for packet-switched communications. It uses IP as the underlying transport mechanism to provide access to IP-like services.

UDP packets are delivered just like IP packets – connection-less datagrams that may be discarded before reaching their targets. UDP is useful when TCP would be too complex, too slow, or just unnecessary. UTP Unshielded twisted-pair cable. VIRTUAL LAN (VLAN) A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network. A VLAN serves as a logical workgroup with no physical barriers, allowing users to share information and resources as though located on the same LAN.

INDEX NUMERICS 10 Mbps connectivity rules 51 100 Mbps connectivity rules 51 1000 Mbps connectivity rules 50 1000BASE-LH fiber cable Lengths 51 1000BASE-LX fiber cable Lengths 51 1000BASE-SX fiber cable Lengths 50 1000BASE-T pin assignments 58 ports 24 100BASE-TX, cable lengths 51 10BASE-T, cable lengths 51 A adhesive feet, attaching 40 air flow requirements 35 applications central wiring closet 31 collapsed backbone 30 remote connections with fiber 32 VLAN connections 33 B brackets, attaching 39 buffer size 61 C cable Ethernet cable compatibility 36 fiber standards 59 labeling and connection records 52 lengths 51 cleaning fiber terminators 48 compliances EMC 64 safety 64 connectivity rules 10 Mbps 51 100 Mbps 51 1000 Mbps 50 console port, pin assignments 43 contents of package 37 cooling problems 54 cord sets, international 42 D desktop mounting 40 device connections 45 E electrical interference, avoiding 35 equipment checklist 37 Ethernet connectivity rules 51 F Fast Ethernet connectivity rules 51 features 63 fiber cables 48 flow control, IEEE 802.3x 25 front panel of switch 23 full duplex connectivity 29 G Gigabit Ethernet cable lengths 50 grounding for racks 38 I IEEE 802.3x flow control 25 indicators, LED 26 installation connecting devices to the switch 46 desktop or shelf mounting 40 network wiring connections 47 port connections 45, 48 power requirements 35 problems 54 rack mounting 38 site requirements 35 L laser safety 48 LC port connections 48 LED indicators DIAG 27 PWR 26 location requirements 35

M management agent 24 features 63 out-of-band 24 SNMP 24 web-based 24 mounting the switch in a rack 38 on a desktop or shelf 40 multimode fiber optic cables 48 N network connections 45, 48 examples 30 O out-of-band management 24 P package contents 37 pin assignments 55 1000BASE-T 58 10BASE-T/100BASE-TX 56 console port 43 DB-9 43 port saturation 25 ports, connecting to 45, 48 power, connecting to 42 R rack mounting 38 rear panel of switch 23 rear panel socket 27 RJ-45 port 24 connections 45 pinouts 58 RMON 24 RS-232 port 24 rubber foot pads, attaching 40 S screws for rack mounting 37 serial cable 24 port 24 SFP transceiver slots 25 single-mode fiber optic cables 48 site selelction 35 SNMP agent 24 specifications compliances 64 environmental 62 power 62 standards compliance 64 IEEE 64 status LEDs 26 surge suppressor, using 35 switch architecture 24 switching method 24 T Telnet 54 temperature within a rack 38 troubleshooting in-band access 54 power and cooling problems 54 twisted-pair connections 45 V VLANS, tagging 33 W web-based management 24