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AMG4788AR Instruction Manual 8 Channel Video Receive Unit with up to 8 Bi-directional Data and Audio Channels The AMG4788AR is a rackmount eight channel video receive unit designed to transmit 8 video signals and transmit and receive up to 8 data or audio signals over two singlemode fibres. The 8 data/audio channel interfaces, whether RS232, RS422, RS485, 20mA, TTL, Contact Closure, Lonworks or Audio, are defined at manufacture by the addition of daughter boards fitted onto the Data Expansion Board A. The AMG4788AR is designed to plug into an AMG2005 subrack, which in turn fits into a 19" rack system. The AMG4788AR is designed to operate with AMG4787A or rackmount equivalent AMG4787AR eight channel video transmit unit in a point to point 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 1 of 12 AMG4788AR Instruction Sheet D16957-01.doc Contents Introduction 3 Unit Functional Schematic.................................................................................................................. 3 Optical Connection ............................................................................................................................. 3 Connections 4 Video Output Connections.................................................................................................................. 4 Optical Connections ........................................................................................................................... 4 Power Connection .............................................................................................................................. 4 Data Channel Connections................................................................................................................. 4 Data and Audio Channel Configuration 5 Data Interface Daughter Board Options ............................................................................................. 5 Data and Audio Channel Configuration.............................................................................................. 5 Daughter Board Layout ...................................................................................................................... 5 Data and Audio Daughter Board Fitting Instruction............................................................................ 5 Data and Audio Connections.............................................................................................................. 6 Front Panel Indicators 7 Power LED.......................................................................................................................................... 7 Video Output LED’s ............................................................................................................................ 7 Fibre Optic LED’s ............................................................................................................................... 7 Low Speed Data LEDs ....................................................................................................................... 7 Physical Information 9 Dimensions ......................................................................................................................................... 9 Mounting Details ................................................................................................................................. 9 Removal / replacement from / to the Case......................................................................................... 9 Safety 9 Maintenance and Repair 9 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 AMG4788AR Instruction Sheet D16957-01.doc Introduction Unit Functional Schematic The AMG4788AR drops off up to 8 video and 8 data and audio signals transmitted from the AMG4787A. It also transmits up to 8 data and audio channels to the AMG4787A. Optical Connection The AMG4788AR is connected as illustrated below when used with an AMG4787AR 8-channel transmit unit acting as a point to point system. 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 AMG4788AR Instruction Sheet D16957-01.doc Connections Video Output Connections No. of channels ....................................8 Connectors ..........................................75 ohm BNC Socket. Output Impedance ...............................75 ohm terminated. Output Level ........................................1 Volt p-p nominal Frequency Response...........................10Hz to 7MHz. Optical Connections PRIMARY OPTO OUT Connector ............................................LC/PC Primary Optical Launch Power ............-5dBm Wavelength ..........................................1310nm Optical Fibre ........................................Singlemode PRIMARY OPTO IN Connector ............................................LC/PC Primary Optical Sensitivity ...................-22dBm Wavelength ..........................................1310nm Optical Fibre ........................................Singlemode Power Connection Power supply .......................................from plug in connection on the AMG2009 / AMG2015 subrack Power consumption .............................10 Watts max. Data Channel Connections Total No. of Data Channels .................8 channels Data/Audio Channels – BANK A .........8 channels Data/Audio Channels – BANK B .........Not Used Connector ............................................37-way D-Type female connector - shielded. Connections .........................................See below for connection and configuration For the data or audio channels to be present, the appropriate data daughter boards have to be fitted into the data expansion board slots. 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 AMG4788AR Instruction Sheet D16957-01.doc Data and Audio Channel Configuration The AMG4788A and rackmount equivalent AMG4788AR sends and receives data in one bank - Bank A. Bank B is not used. The physical interface is determined by the fitting of AMG data or audio daughter boards onto the appropriate data expansion board slots. Data Interface Daughter Board Options The data interface daughter board options are as follows: Option Code 'x' 0 Part No. Description X12542 4 Wire Audio Interface Daughter Board 1 X04057 RS422/485 Data Interface Daughter Board 2 X04049 RS232 Data Interface Daughter Board 3 X04058 20mA Current Loop Data Interface Daughter Board 4 X12579 TTL Data Interface Daughter Board 5 X12578 Contact Closure Data Interface Daughter Board 6 X13038 FTT10A Echelon Lonworks Data Interface Daughter Board Data and Audio Channel Configuration The data expansion board slots are accessed by removing the AMG unit from its case. A data channel is active when a daughter board is installed in the required data channel slot. Each data interface board enables one bi-directional channel. Daughter Board Layout The channel slots are as follows: Data and Audio Daughter Board Fitting Instruction The data and audio daughter boards pushed on to the pin headers mounted on the data expansion boards. Ensure that the connectors are lined up correctly and not offset before pushing firmly in place. Note that the data and audio channel numbers are associated with each slot. This allocates the pin numbers on the rear panel connector together with the front panel LED indicators. 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 5 of 12 AMG4788AR Instruction Sheet D16957-01.doc Data and Audio Connections The BANK A data/audio channels pin connections on the rear panel connectors are as follows: Pin No. Description Bank Pin No. Description Bank 1 Audio/Data CH1 IN + (A) A 20 Audio/Data CH1 OUT + (A) A 2 Audio/Data CH1 IN - (B) A 21 Audio/Data CH1 OUT - (B) A 3 Audio/Data CH2 IN + (A) A 22 Audio/Data CH2 OUT + (A) A 4 Audio/Data CH2 IN - (B) A 23 Audio/Data CH2 OUT - (B) A 5 Audio/Data CH3 IN + (A) A 24 Audio/Data CH3 OUT + (A) A 6 Audio/Data CH3 IN - (B) A 25 Audio/Data CH3 OUT - (B) A 7 Audio/Data CH4 IN + (A) A 26 Audio/Data CH4 OUT + (A) A 8 Audio/Data CH4 IN - (B) A 27 Audio/Data CH4 OUT - (B) A 9 GND A 28 GND A 10 GND A 29 GND A 11 GND A 30 Audio/Data CH5 OUT + (A) A 12 Audio/Data CH5 IN + (A) A 31 Audio/Data CH5 OUT - (B) A 13 Audio/Data CH5 IN - (B) A 32 Audio/Data CH6 OUT + (A) A 14 Audio/Data CH6 IN + (A) A 33 Audio/Data CH6 OUT - (B) A 15 Audio/Data CH6 IN - (B) A 34 Audio/Data CH7 OUT + (A) A 16 Audio/Data CH7 IN + (A) A 35 Audio/Data CH7 OUT - (B) A 17 Audio/Data CH7 IN - (B) A 36 Audio/Data CH8 OUT + (A) A 18 Audio/Data CH8 IN + (A) A 37 Audio/Data CH8 OUT - (B) A 19 Audio/Data CH8 IN - (B) A Note: (A) or (B) in brackets in above table refers to RS485/RS422 data specification not Bank A, B. See Data or Audio Daughter Board Instruction Sheet for meaning of Audio/Data IN+, Audio/Data INAudio/Data OUT+, and Audio/Data OUT- for each data type. 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 6 of 12 AMG4788AR Instruction Sheet D16957-01.doc Front Panel Indicators Power LED Power .................................................. Green Off - unit powered no power applied to unit - video signal present on output BNC channel present but no video on O/P BNC no video channel present Primary Opto Sync TX......................... Green Off - optical channel transmitting optical channel not transmitting Primary Opto Sync RX ........................ Green Org Off - optical channel receiving optical channel receiving but not sync. optical channel not transmitting Video Output LED’s Video Present CH1-8 .......................... Green Org Off Fibre Optic LED’s Low Speed Data LEDs BANK A (When RS232 data daughter board fitted) Data Present CH1-8 TX ...................... Green Red Off - logic zero (+V) present on IN+ logic transitions present on IN+ logic one (-V) present on IN+ This represents the data signals being transmitted on the optical fibre Data Present CH1-8 RX ...................... Green Red Off - logic zero (+V) present on OUT+ logic transitions present on OUT+ logic one (-V) present on OUT+ This represents the data signals being received on the optical fibre BANK A (When RS485 / RS422 data daughter board fitted) Data Present CH1-8 TX ...................... Green logic zero (+V, -V) present on IN+, INRed logic transitions present on IN+, INOff logic one (-V, +V) present on IN+, INThis represents the data signals being transmitted on the optical fibre Data Present CH1-8 RX ...................... Green Red Off - logic zero (+V, -V) present on OUT+, OUTlogic transitions present on OUT+, OUTlogic one (-V , +V) present on OUT+, OUT- This represents the data signals being received on the optical fibre BANK A (When audio daughter board fitted) Audio Present TX ................................ Green Red Off - audio present > -40dBm audio present > 0dBm (overload at +6dBm) audio not present or < -40dBm This represents the audio signals being transmitted on the optical fibre 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 7 of 12 AMG4788AR Instruction Sheet D16957-01.doc Audio Present RX ................................Green Red Off - audio present > -40dBm audio present > 0dBm (overload at +6dBm) audio not present or < -40dBm This represents the audio signals being received from the optical fibre. 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 8 of 12 AMG4788AR Instruction Sheet D16957-01.doc Physical Information Dimensions Height .................................................. 3U Plug-in Width ................................................... 21HP Depth ................................................... 170mm excluding connectors Weight ................................................. 1200grams Mounting Details The unit is designed to be mounted within an AMG2009 or AMG2015 Subrack on standard card guides. Removal / replacement from / to the Case Note: - The AMG unit PCB's are static sensitive. Handle with proper care and use normal electrostatic discharge (ESD) procedures. Use properly grounded protection (for example, wrist straps) when handling the PCB. To remove units from the case to access the data expansion boards and the daughter boards, remove the 2 or 4 fixing screws on the rear panel and slide the PCB's out of the case. Ensure that the fibres do not snag or get trapped. To replace the PCB's into the case, slide the PCB's gently into the case aligning the boards with the appropriate slots. Ensure that the fibre do not snag or get trapped. Safety AMG Optical Fibre Products use Class 1 laser systems in accordance with EN 60825-2:2000. It is always advisable to follow good practice when working with optical fibre systems. This includes: Do not stare with unprotected eyes or with any unapproved collimating device at fibre ends or connector faces, or point them at other people. Use only approved filtered or attenuating viewing aids For other safety issues and advice on good practice associated with optical fibre systems, please see EN 60825-2:2000 or your local safety officer. Maintenance and Repair There are no user serviceable parts within AMG products. See unit data sheet for full specification. In case of problem or failure, please call your local support centre or contact: AMG Systems Ltd. at 3 The Omega Centre, Stratton Business Park, Biggleswade, Beds., SG18 8QB, UK. Phone Technical Support Email +44 (0) 1767 600 777 +44 (0) 1767 604 491 [email protected] 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 9 of 12 AMG4788AR Instruction Sheet D16957-01.doc This page is intentionally blank. 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 10 of 12 AMG4788AR Instruction Sheet D16957-01.doc This page is intentionally blank. 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 11 of 12 AMG4788AR Instruction Sheet D16957-01.doc This page is intentionally blank. 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 12 of 12 AMG4788AR Instruction Sheet D16957-01.doc
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