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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 5 of 12 

AMG4788  Instruction Sheet D18392-
00.doc 
 

 

 

Data and Audio Channel Configuration 

The 

AMG4788 

and rackmount equivalent 

AMG4788R 

sends and receives data in two banks - Bank A 

and Bank B each of which carries up to 8 channels of data / audio. 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'

 

Part No.

 

Description

 

X12542 

4 Wire Audio Interface Daughter Board 

X04057 

RS422/485 Data Interface Daughter Board 

X04049 

RS232 Data Interface Daughter Board 

X04058 

20mA Current Loop Data Interface Daughter Board 

X12579 

TTL Data Interface Daughter Board 

X12578 

Contact Closure Data Interface Daughter Board 

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. 
 

 

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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