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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 

AMG4788  Instruction Sheet D18392-
00.doc 
 

 

 

 

 

AMG4788 Instruction 

Manual  

8 Channel Video Receive Unit with up to 16 Bi-directional 

Data and Audio Channels for a Singlemode Fibre Link 

 

 

 

 

 
The 

AMG4788

 is a standalone eight channel video receive unit designed to receive 8 video signals 

and transmit and receive up to 16 data or audio signals over two singlemode fibres. The 16 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 Boards 
A & B.  
 
The 

AMG4788

 is designed to be powered using an 

AMG2003

 standalone power supply. 

 
The 

AMG4788

 is designed to operate with 

AMG4787

 or rackmount equivalent 

AMG4787R

 eight 

channel video transmit unit in a point to point configuration. 
 
 

 

Summary of Contents for AMG4788

Page 1: ...lone eight channel video receive unit designed to receive 8 video signals and transmit and receive up to 16 data or audio signals over two singlemode fibres The 16 data audio channel interfaces whethe...

Page 2: ...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...

Page 3: ...12 AMG4788 Instruction Sheet D18392 00 doc Introduction Unit Functional Schematic The AMG4788 drops off up to 8 video and 16 data and audio signals transmitted from the AMG4787 It also transmits up to...

Page 4: ...310nm Optical Fibre Singlemode PRIMARY OPTO IN Connector LC PC Primary Optical Sensitivity 22dBm Wavelength 1310nm Optical Fibre Singlemode Power Connection Connector Type 2 1mm screw lock long power...

Page 5: ...ata 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...

Page 6: ...CH3 IN B A B 25 Audio Data CH3 OUT B A B 7 Audio Data CH4 IN A A B 26 Audio Data CH4 OUT A A B 8 Audio Data CH4 IN B A B 27 Audio Data CH4 OUT B A B 9 GND A B 28 GND A B 10 GND A B 29 GND A B 11 GND...

Page 7: ...IN Red logic transitions present on IN Off logic one V present on IN This represents the data signals being transmitted on the optical fibre Data Present CH1 16 RX Green logic zero V present on OUT R...

Page 8: ...elieved to be accurate No responsibility is assumed by AMG for its use Page 8 of 12 AMG4788 Instruction Sheet D18392 00 doc Audio Present RX Green audio present 40dBm Red audio present 0dBm overload a...

Page 9: ...nel 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 appropria...

Page 10: ...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 AMG4788 Instruction Sheet D18392 00 doc...

Page 11: ...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 AMG4788 Instruction Sheet D18392 00 doc...

Page 12: ...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 AMG4788 Instruction Sheet D18392 00 doc...

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