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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 8

AMG4708AR Instruction Sheet
D18005-01.doc

AMG4708AR

Instruction Manual

Data Receive Unit with up to 8 Bi-directional Data and

Audio Channels

The

AMG4708AR

is a rackmount data receive unit designed to 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

AMG4708AR

is designed to plug into an AMG2005 subrack, which in turn fits into a 19" rack

system.

The

AMG4708AR

is designed to operate with

AMG4707A

or rackmount equivalent

AMG4707AR

data

transmit unit in a point to point configuration.

Summary of Contents for AMG4708AR

Page 1: ...kmount data receive unit designed to 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 AMG4708AR is designed to plug into an AMG2005 subrack which in turn fits in...

Page 2: ...onnections 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 Fibre Optic LED s 7 Low Speed Data LEDs 7 Physical Informat...

Page 3: ... 3 of 8 AMG4708AR Instruction Sheet D18005 01 doc Introduction Unit Functional Schematic The AMG4708AR receives up to 8 data and audio signals transmitted from the AMG4707A It also transmits up to 8 data and audio channels to the AMG4707A Optical Connection The AMG4708AR is connected as illustrated below when used with an AMG4707AR data transmit unit acting as a point to point system ...

Page 4: ...O 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 ...

Page 5: ...er 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 ins...

Page 6: ...T 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 ...

Page 7: ...reen logic zero V present on OUT Red logic transitions present on OUT Off 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 IN Red logic transitions present on IN IN Off logic one V V present on IN IN This represents the data signals being transm...

Page 8: ...nag 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...

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