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Data Insert Unit with 2 Bi-directional Data Channels for a
Dual Redundant Singlemode Fibre Ring
The AMG3703B2-DR-SF is a standalone data insert unit designed to transmit and receive 2 bi-
directional data channels to/from a dual redundant singlemode optical fibre ring. One data channel is a
multi-drop RS-485 link, the second data channel is effectivly a point to point RS-232 link.
The AMG3703B2-DR-SF is designed to be powered using an AMG2003 standalone power supply.
The AMG3703B2-DR-SF is designed to operate with an AMG3708BN-DR-SF or rackmount
equivalent AMG3708BRN-DR-SF data receive unit. The receive unit will 'drop off' one RS-485 multi-
drop channel plus eight individual RS-232 data channels which are being transmitted around the fibre
ring from up to eight data insert units.
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.
AMG3703B2-DR-SF
Instruction Manual
Page 1 of 12
AMG3703B2-DR-SF Instruction Sheet
D18168-01.doc
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Summary of Contents for AMG AMG3703B2-DR-SF
- Page 1 Data Insert Unit with 2 Bi-directional Data Channels for a Dual Redundant Singlemode Fibre Ring The AMG3703B2-DR-SF is a standalone data insert unit designed to transmit and receive 2 bi- directional data channels to/from a dual redundant singlemode optical fibre ring. One data channel is a multi-drop RS-485 link, the second data channel is effectivly a point to point RS-232 link.
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Page 2: Table Of Contents
Removal / replacement from / to the Case..................10 Safety Maintenance and Repair AMG Systems Ltd. reserves the right to make changes to this Page 2 of 12 AMG3703B2-DR-SF Instruction Sheet document without notice. The information herein is believed to D18168-01.doc... -
Page 3: Introduction
17dB. Data Channel Configuration At the AMG3703B2-DR-SF or rackmount AMG3703B2R-DR-SF insert unit, "B" channel data can be inserted on one to eight "B" data channels transmitted on the optical fibre. The "B" data channel number of each insert unit is set by the rotary switch on the front panel of the unit. - Page 4 The AMG3703B2-DR-SF or rackmount AMG3703B2R-DR-SF is designed to be connected in a ring or point to point system. In a ring system single channel data insert units can be combined to make an 8 channel data transmission system as illustrated below.
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Page 5: Connections
Data Connector ........RJ45 Channel B Interface......Defined by data/audio interface daughter board fitted into Slot 1 on main board and indicated by the 'x' in the AMG partno. AMG Systems Ltd. reserves the right to make changes to this... -
Page 6: Front Panel Indicators
(+V) present on OUT+ logic transitions present on OUT+ logic one (-V) present on OUT+ AMG Systems Ltd. reserves the right to make changes to this Page 6 of 12 AMG3703B2-DR-SF Instruction Sheet document without notice. The information herein is believed to D18168-01.doc... - 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 12 AMG3703B2-DR-SF Instruction Sheet document without notice.
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Page 8: Data And Audio Channel Configuration
RS485 bus high (+5 volts) and the other arm low (0 volts) using high value resistors within the third party equipment. In order to ensure that the AMG equipment detects a tri-state condition, then these resistors should have a value above 5kΩ. If the third party bias resistors are less the 750Ω... -
Page 9: Data / Audio Channel B Configuration
Brown Note: (A) or (B) in brackets in above table refers to RS485 / RS422 data specification, not Channel A, Channel B. AMG Systems Ltd. reserves the right to make changes to this Page 9 of 12 AMG3703B2-DR-SF Instruction Sheet document without notice. -
Page 10: Physical Information
Weight..........500grams 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, see diagram on page 1 for dimensions. The unit is clipped into the mounting bracket, and is then held firmly in position. - Page 11 This page is intentionally blank. AMG Systems Ltd. reserves the right to make changes to this Page 11 of 12 AMG3703B2-DR-SF Instruction Sheet document without notice. The information herein is believed to D18168-01.doc be accurate. No responsibility is assumed by AMG for its use.
- Page 12 This page is intentionally blank. AMG Systems Ltd. reserves the right to make changes to this Page 12 of 12 AMG3703B2-DR-SF Instruction Sheet document without notice. The information herein is believed to D18168-01.doc be accurate. No responsibility is assumed by AMG for its use.
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