AMG AMG3784EBxR-DRCWDMn/m Manuals

AMG Systems Ltd. reserves the right to make changes to this document without notice. The information herein is believed to be accurate. No responsibility is assumed by AMG for its use. Page 1 of 12 AMG3784EBxR-DR-CWDMnm Instruction Sheet D16784-01.doc AMG3784EBxR-DR- CWDMn/m Instruction Manual 8 Channel Video Receive Unit with Bi-directional Data and Audio Channels plus Ethernet for a Dual Redundant fibre ring using CWDM The AMG3784EBxR-DR-CWDMn/m is a rackmount eight channel video receive unit designed to receive 8 video signals from a single optical fibre ring with Dual Redundant operation. It also provides bi-directional data channels via a low speed data interface, plus full duplex 100BaseT Ethernet connectivity around the ring. The AMG3784EBxR-DR-CWDMn/m is designed to plug into an AMG2005 subrack, which in turn fits into a 19" rack system. The AMG3784EBxR-DR-CWDMn/m is designed to operate with AMG3713EBx-DR-CWDMn/m-C or rackmount equivalent AMG3713EBxD-DR-CWDMn/m-C single channel video, data and Ethernet insert units. It may also be used with other combinations of single, dual and four channel video, data and Ethernet insert units. An AMG3784EBxR-DR-CWDMn/m receive unit will 'drop off' up to eight video channels which are being transmitted around the fibre ring from up to eight single channel insert units, or from an equivalent combination of multi-channel insert units. AMG Systems Ltd. reserves the right to make changes to this document without notice. The information herein is believed to be accurate. No responsibility is assumed by AMG for its use. Page 2 of 12 AMG3784EBxR-DR-CWDMnm Instruction Sheet D16784-01.doc Contents Introduction 3 Unit Functional Schematic.................................................................................................................. 3 CWDM Operation ............................................................................................................................... 3 Standard AMG CWDM Wavelengths ................................................................................................. 3 Video Input Channel Configuration .................................................................................................... 3 Dual Redundant Operation................................................................................................................. 4 Optical Connection ............................................................................................................................. 4 Connections 6 Data and Audio Channel Connections ............................................................................................... 6 Video Output Connections.................................................................................................................. 6 Optical Connections ........................................................................................................................... 6 Power Connection .............................................................................................................................. 6 Ethernet Connection........................................................................................................................... 6 Ethernet Operation 7 Data and Audio Channel Configuration 8 Data and Audio Channel Configuration.............................................................................................. 8 Data Interface Connections Channel A .............................................................................................. 8 Data Channel A Configuration............................................................................................................ 8 Data / Audio Channel B Configuration ............................................................................................... 9 Data Interface Daughter Board Options ............................................................................................. 9 Audio / Data Interface Connections RJ45 - Channel B ...................................................................... 9 Front Panel Indicators 10 Power LED........................................................................................................................................ 10 Video Output LED’s .......................................................................................................................... 10 Fibre Optic LED’s ............................................................................................................................. 10 Low Speed Data LEDs ..................................................................................................................... 10 Physical Information 12 Dimensions....................................................................................................................................... 12 Mounting Details............................................................................................................................... 12 Removal / replacement from / to the Case....................................................................................... 12 Safety 12 Maintenance and Repair 12 AMG Systems Ltd. reserves the right to make changes to this document without notice. The information herein is believed to be accurate. No responsibility is assumed by AMG for its use. Page 3 of 12 AMG3784EBxR-DR-CWDMnm Instruction Sheet D16784-01.doc Introduction Unit Functional Schematic The AMG3784EBxR-DR-CWDMn/m transmits and receives optical signals from both a primary and a secondary optical channel. The optical channels operateat wavelengths defined by 'n' and 'm' in the CWDMn/m part number and are transmitted on thesame optical fibre in different directions, using external optical couplers to connect 3784EBxR-DR-CWDMn/m to thesingle fibre loop. A typical configuration is shown in the schematic where n = 1, m = 2, the primary channel operates on 1510nm and the secondary channel on 1530nm. The AMG3784EBxR-DR-CWDMn/m receives up to 8 video, 2 data, and Ethernet signals transmitted from AMG3713EBx-DR- CWDMn/m-C insert units. It also transmits dataand Ethernet signals back to the insert units. As each insert unit regenerates the optical signal of thesame wavelength, the optical dynamic range between each optically connected node of thesame wavelength is 22dB. CWDM Operation In a CWDM basedsystem, each unit uses two distinct CWDM wavelengths. For example, in the case of a CWDM1/2 unit, the wavelengths used are CWDM1 (1510nm) for the primary and CWDM2 (1530nm) for the secondary and they travel on thesame optical fibre in different directions. See table below for details of available CWDM wavelengths. The AMG3784EBxR-DR-CWDMn/m is designed to be connected into asingle fibre loop using external optical couplers to provide a pass-through functionality between the incoming and outgoing optical fibre for signals at other wavelengths. Since up to 16 distinct wavelengths can be transmitted on each singlemode fibre, a maximum of 4 CWDM loops can be connected onto asingle fibre, dual redundant loop. Standard AMG CWDM Wavelengths CWDM Code 'n' or 'm' Wavelength (nm) CWDM Code 'n' or 'm' Wavelength (nm) 1 1510 5 1470 2 1530 6 1490 3 1550 7 1590 4 1570 8 1610 Video Input Channel Configuration AMG Systems Ltd. reserves the right to make changes to this document without notice. The information herein is believed to be accurate. No responsibility is assumed by AMG for its use. Page 4 of 12 AMG3784EBxR-DR-CWDMnm Instruction Sheet D16784-01.doc At the AMG3713EBx-DR-CWDMn/m-C or rackmount AMG3713EBxD-DR-CWDMn/m-C insert unit, video signals present at the BNC inputs can be inserted on one to eight video channels transmitted on the optical fibre. The first video channel number of each insert unit is set by the rotary switch on the front panel of the unit. It is normal to set each insert unit to a different channel number. If thesame number is used twice, an insert unit connected 'down stream' on the primary optical route will 'over-write' any coincident video channels coming from the previous insert unit and those video signals will be lost. Theswitch channel numbers 1 to 8, correspond to video channels 1-8. Unusedswitch channel numbers 0 & 9 duplicate video channel selections 1 & 8 respectively. i.e. setting switch to position 0 or 1 selects video channel 1 and setting switch to position 8 or 9 selects channel 8. Dual Redundant Operation In normal operation where optical connection to both the previous unit and subsequent insert units is OK, video and datasignals are transmitted on the primary output and data is received from the primary input. The secondary optical input is independent and is regenerated on thesecondary output. If the primary input signal is not present, a unit will shut down thesecondary output to inform the previous unit that thesignal route is not OK. The previous unit will then send out the video and datasignals on its secondary output in the opposite direction. This signal will be repeatedaround the ring to get back to this unit on the secondary route. As the primary input is not present on this unit, the datasignal will now be taken from the secondary optical input thus maintaining integrity of the data transmission. If thesecondary input signal isnot present, an insert unit will assume that the route to the next unit is not OK and send out the video and datasignal on thesecondary optical output. This video and data will be transmitted to the next unit around the ring in the opposite direction on thesecondary route. Optical Connection The AMG3784EBx-DR-CWDMn/m or rackmount AMG3784EBxR-DR-CWDMn/m isdesigned to be connected in a ring or point to point system. In a ring system, single, dual and four channel insert units respectively can be combined to make up an 8 channel video transmission system as illustrated below. If a fibre link is broken, operation of the ring continues by making use of thesecondary optical fibre routeas below: