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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 8 of 8

AMG4708AR Instruction Sheet
D18005-01.doc

Physical Information

Dimensions

Height...................................................3U Plug-in
Width....................................................21HP
Depth ...................................................170mm excluding connectors
Weight..................................................1000grams

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

+44 (0) 1767 600 777

Technical Support

+44 (0) 1767 604 491

Email

[email protected]

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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