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Receive Unit with two Bi-directional Data Channels, two Bi-
directional Audio Channels, eight Bi-directional Alarms
plus Ethernet for a Singlemode Fibre Link
The AMG5904-2A9R is a rackmount data/audio receive unit designed to transmit and receive 2 data
signals, 2 audio channels plus 8 bi-directional alarms and also provides full duplex 100Base-T
Ethernet connectivity over a Singlemode optical fibre.
The AMG5904-2A9R is designed to plug into an AMG2009 or AMG2015 subrack, which in turn fits
into a 19" rack system.
The AMG5904-2A9R is designed to operate with an AMG5903-2A9 or AMG5903-2A9R data transmit
unit in a point to point configuration. The R suffix in the partno. indicates a rackmount 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.
AMG5904-2A9R
Instruction Manual
Page 1 of 12
AMG5904-2A9R Instruction Sheet
D22211-00.doc
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Summary of Contents for AMG Systems AMG5904-2A9R
- Page 1 2 audio channels plus 8 bi-directional alarms and also provides full duplex 100Base-T Ethernet connectivity over a Singlemode optical fibre. The AMG5904-2A9R is designed to plug into an AMG2009 or AMG2015 subrack, which in turn fits into a 19" rack system.
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Page 2: Table Of Contents
Physical Information Dimensions ............................12 Mounting Details ..........................12 Safety Maintenance and Repair AMG Systems Ltd. reserves the right to make changes to this Page 2 of 12 AMG5904-2A9R Instruction Sheet document without notice. The information herein is believed to D22211-00.doc... -
Page 3: Introduction
Optical Connection The AMG5904-2A9R connections are illustrated in the following example which shows an AMG5903- 2A9 data transmit unit together with an AMG5904-2A9R rackmount data receive unit configured as a point to point system. Ethernet Operation The Ethernet interface supports 100Mbit/s full duplex operation only. -
Page 4: Connections
Input impedance ........10kΩ / 600Ω Output impedance ....... 600Ω Frequency response ......10Hz to 20KHz AMG Systems Ltd. reserves the right to make changes to this Page 4 of 12 AMG5904-2A9R Instruction Sheet document without notice. The information herein is believed to D22211-00.doc... -
Page 5: Ethernet Connection
Ethernet Data Connector ....RJ45 Interface ..........Auto MDI/MDIX 100BASE-TX Ethernet Data Rate ......Maximum 100Mb/s full duplex AMG Systems Ltd. reserves the right to make changes to this Page 5 of 12 AMG5904-2A9R Instruction Sheet document without notice. The information herein is believed to D22211-00.doc... -
Page 6: Front Panel Indicators
Link integrity is good, Idle state GBlink - Data transfer Link not present Audio LEDs AMG Systems Ltd. reserves the right to make changes to this Page 6 of 12 AMG5904-2A9R Instruction Sheet document without notice. The information herein is believed to D22211-00.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 AMG5904-2A9R Instruction Sheet document without notice.
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Page 8: Data And Alarm Channel Configuration
Data and Alarm Channel Configuration The AMG5904-2A9R receive unit sends and receives data to/from an AMG5903-2A9 or rackmount equivalent AMG5903-2A9R transmit unit. The 2 physical data interfaces RS-485, RS-422 or RS-232 are individually selectable by the user with the slide switch mounted from the rear panel. -
Page 9: Alarm Channel Configuration
RS-232 (no termination), RS-422 (120Ω) or RS-485 (120Ω). Alarm Channel Configuration The AMG5904-2A9R provides 8 bi-directional contact closure inputs / alarm outputs. Each ALARM IN input is via an internal 10kΩ series resistor with a 47kΩ pull-up resistor to the internal +3V3 supply. -
Page 10: Alarm Interface Connections
ALARM 3/7 IN ALARM 3/7 OUT ALARM 4/8 IN ALARM 4/8 OUT AMG Systems Ltd. reserves the right to make changes to this Page 10 of 12 AMG5904-2A9R Instruction Sheet document without notice. The information herein is believed to D22211-00.doc... -
Page 11: Audio Channel Configuration
OUT - OUT + OUT + IN + IN - AMG Systems Ltd. reserves the right to make changes to this Page 11 of 12 AMG5904-2A9R Instruction Sheet document without notice. The information herein is believed to D22211-00.doc be accurate. No responsibility is assumed by AMG for its use. -
Page 12: Physical Information
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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