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Data Receive Unit with up to 8 Bi-directional Data and
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.
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
AMG4708AR
Instruction Manual
AMG4708AR Instruction Sheet
D18005-01.doc
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Summary of Contents for AMG AMG4708AR
- Page 1 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.
- Page 2 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 AMG4708AR Instruction Sheet document without notice. The information herein is believed to D18005-01.doc...
- Page 3 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. AMG Systems Ltd. reserves the right to make changes to this...
- Page 4 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 AMG4708AR Instruction Sheet document without notice.
- Page 5 The AMG4708A and rackmount equivalent AMG4708AR 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 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 AMG4708AR Instruction Sheet document without notice.
- Page 7 > 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 AMG4708AR Instruction Sheet document without notice.
- Page 8 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.
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