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Data Receive Unit with up to 8 Bi-directional Data and
The AMG4708A is a standalone 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 AMG4708A is designed to be powered by an AMG2003 power supply.
The AMG4708A is designed to operate with AMG4707A or rackmount equivalent AMG4707AG data
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.
Audio Channels
Page 1 of 8
AMG4708A
Instruction Manual
AMG4708A Instruction Sheet D16802-
01.doc
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Summary of Contents for AMG AMG4708A
- Page 1 Data Receive Unit with up to 8 Bi-directional Data and Audio Channels The AMG4708A is a standalone 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.
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Page 2: Table Of Contents
Removal / replacement from / to the Case..................8 Safety Maintenance and Repair AMG Systems Ltd. reserves the right to make changes to this Page 2 of 8 AMG4708A Instruction Sheet D16802- document without notice. The information herein is believed to 01.doc... -
Page 3: Introduction
It also transmits up to 8 data and audio channels to the AMG4707A. Optical Connection The AMG4708A is connected as illustrated below when used with an AMG4707A data transmit unit acting as a point to point system. AMG Systems Ltd. reserves the right to make changes to this... -
Page 4: Connections
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 Page 4 of 8 AMG4708A Instruction Sheet D16802- document without notice. -
Page 5: Data And Audio Channel Configuration
The AMG4708A and rackmount equivalent AMG4708AG 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. -
Page 6: Data And Audio Connections
See Data or Audio Daughter Board Instruction Sheet for meaning of Audio/Data IN+, Audio/Data IN- Audio/Data OUT+, and Audio/Data OUT- for each data type. AMG Systems Ltd. reserves the right to make changes to this Page 6 of 8 AMG4708A Instruction Sheet D16802- document without notice. -
Page 7: Front Panel Indicators
> 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 Page 7 of 8 AMG4708A Instruction Sheet D16802- document without notice. -
Page 8: Physical Information
Mounting Details The AMG unit is supplied with a clip-on mounting bracket which should be attached to a panel or wall using 2 off 4.0mm screws. The unit is clipped into the mounting bracket, and is then held firmly in position.
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