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8 Channel Video Receive Unit with up to 9 Bi-directional
Data and Audio Channels and Dual Redundant Operation -
includes AMG NMS Network Management Interface
The AMG3788BRN-DR is a rackmount eight channel video receive unit designed to receive up to 8
video signals and transmit & receive up to 9 data or audio signals from one or more AMG3717B-DR or
AMG3717BR-DR rackmount equivalent insert units over two singlemode fibres with Dual Redundant
operation.
The 9 data/audio channel interfaces, whether RS-232, RS-422, RS-485, 20mA, TTL, Contact Closure,
Lonworks or Audio, are defined at manufacture by the addition of daughter boards fitted onto the Data
Expansion Board B.
The AMG3788BRN-DR is designed to plug into an AMG2005 subrack, which in turn fits into a 19" rack
system. It also includes an AMG Management Interface to allow Management of the system using the
AMG SNMP enabled Management software.
The AMG3788BRN-DR is designed to operate with up to eight AMG3717B-DR single channel video
insert units. Each receiver will 'drop off' up to eight video channels which are being transmitted around
the fibre ring. The AMG3788BRN-DR may also be used with other combinations of single, dual or four
channel video and 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.
AMG3788BRN-DR
Instruction Manual
Page 1 of 16
AMG3788BRN-DR Instruction Sheet
D16827-02.doc
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Summary of Contents for AMG AMG3788BRN-DR
- Page 1 Lonworks or Audio, are defined at manufacture by the addition of daughter boards fitted onto the Data Expansion Board B. The AMG3788BRN-DR is designed to plug into an AMG2005 subrack, which in turn fits into a 19" rack system. It also includes an AMG Management Interface to allow Management of the system using the AMG SNMP enabled Management software.
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Page 2: Table Of Contents
Dimensions ............................16 Mounting Details ..........................16 Removal / replacement from / to the Case..................16 AMG Systems Ltd. reserves the right to make changes to this Page 2 of 16 AMG3788BRN-DR Instruction Sheet document without notice. The information herein is believed to D16827-02.doc... - Page 3 Safety Maintenance and Repair AMG Systems Ltd. reserves the right to make changes to this Page 3 of 16 AMG3788BRN-DR Instruction Sheet document without notice. The information herein is believed to D16827-02.doc be accurate. No responsibility is assumed by AMG for its use.
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Page 4: Introduction
This signal will be repeated around the ring to get back to this AMG3788BRN-DR on the secondary route. As the primary input is not present on this unit, the data signal will now be taken from the secondary optical input. Thus maintaining integrity of the data transmission. - Page 5 2 and 3 as there is now no physical connection between the transceivers and the receiver. However operation of cameras 4,5,6,7 and 8 remains fully functional. AMG Systems Ltd. reserves the right to make changes to this Page 5 of 16 AMG3788BRN-DR Instruction Sheet document without notice.
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Page 6: Connections
DATA BANK B Data/Audio Channels – BANK A ..Not Used Data/Audio Channels – BANK B ..8 channels AMG Systems Ltd. reserves the right to make changes to this Page 6 of 16 AMG3788BRN-DR Instruction Sheet document without notice. The information herein is believed to D16827-02.doc... -
Page 7: Video Input Channel Configuration
Bank B carries up to 8 channels of data / audio, the physical interface of which is determined by fitment of AMG data or audio daughter boards onto the B Channel data expansion board slots. -
Page 8: Data Channel A 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: Bank B Data
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 installed in the required data channel slot. Each data interface board enables one bi-directional channel. -
Page 10: Data And Audio Connections Bank B
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 10 of 16 AMG3788BRN-DR Instruction Sheet document without notice. -
Page 11: Front Panel Indicators
(+V) present on IN+ logic transitions present on IN+ logic one (-V) present on IN+ AMG Systems Ltd. reserves the right to make changes to this Page 11 of 16 AMG3788BRN-DR Instruction Sheet document without notice. The information herein is believed to D16827-02.doc... - Page 12 > 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 12 of 16 AMG3788BRN-DR Instruction Sheet document without notice.
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Page 13: Network Management
Power at the receiver Closed by: Reset The Management Interface The Management Interface is fitted to AMG receivers / transmitters and is signified by a 'N' in the part number AMG Systems Ltd. reserves the right to make changes to this... - Page 14 Each management interface, thus each receiver or transmitter, has an ID number with is identified below the management port. This ID number is used by the AMG Network Management System (NMS) to identify the unit. The physical interface is a 9 way female D-type connector. It supports either RS-232 or RS-485.
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Page 15: Alarm Output And Reset Operation
On release of the alarm reset, the alarm output will remain in a closed state until the next change of state to the AMG transmit unit connected to the receiver. The alarm output may not register a change of state which happens within 5 seconds of release of the alarm reset. -
Page 16: 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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