AMG 4688AR Instruction Manual Download Page 1

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.

Page 1 of 12

AMG4688AR Instruction Sheet
D18179-01.doc

AMG4688AR

Instruction Manual

8 Channel Video Receive Unit with up to 8 Bi-directional

Data and Audio Channels

The

AMG4688AR

is a rackmount eight channel video receive unit designed to transmit 8 video signals

and 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

AMG4688AR

is designed to plug into an AMG2009 or AMG2015 subrack, which in turn fits into a

19" rack system.

The

AMG4688AR

is designed to operate with

AMG4687A

or rackmount equivalent

AMG4687AR

eight channel video transmit unit in a point to point configuration.

Summary of Contents for 4688AR

Page 1: ...ceive unit designed to transmit 8 video signals and 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 AMG4688AR is designed to plug into an AMG2009 or AMG2015 sub...

Page 2: ...ut Connections 4 Optical Connections 4 Power Connection 4 Data Channel Connections 4 Data and Audio Channel Configuration 5 Data Interface Daughter Board Options 5 Data and Audio Channel Configuration 5 Daughter Board Layout 5 Data and Audio Daughter Board Fitting Instruction 5 Data and Audio Connections 6 Front Panel Indicators 7 Power LED 7 Video Output LED s 7 Fibre Optic LED s 7 Low Speed Data...

Page 3: ...AMG4688AR Instruction Sheet D18179 01 doc Introduction Unit Functional Schematic The AMG4688AR drops off up to 8 video and 8 data and audio signals transmitted from the AMG4687A It also transmits up to 8 data and audio channels to the AMG4687A Optical Connection The AMG4688AR is connected as illustrated below when used with an AMG4687AR 8 channel transmit unit acting as a point to point system ...

Page 4: ...r 62 5 125 Note the transmission distance is limited by the bandwidth of the Multimode optical fibre The optical data rate is 1 25Gbits s The maximum bandwidth specification at this data rate for Multimode fibre is 2km although in most cases the units will operate successfully over longer fibre lengths It is advisable however for distances greater than 2km to have the optical fibre tested Power Co...

Page 5: ...er Board 3 X04058 20mA Current Loop Data Interface Daughter Board 4 X12579 TTL Data Interface Daughter Board 5 X12578 Contact Closure Data Interface Daughter Board 6 X13038 FTT10A Echelon Lonworks Data Interface Daughter Board 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 ins...

Page 6: ...T A A 6 Audio Data CH3 IN B A 25 Audio Data CH3 OUT B A 7 Audio Data CH4 IN A A 26 Audio Data CH4 OUT A A 8 Audio Data CH4 IN B A 27 Audio Data CH4 OUT B A 9 GND A 28 GND A 10 GND A 29 GND A 11 GND A 30 Audio Data CH5 OUT A A 12 Audio Data CH5 IN A A 31 Audio Data CH5 OUT B A 13 Audio Data CH5 IN B A 32 Audio Data CH6 OUT A A 14 Audio Data CH6 IN A A 33 Audio Data CH6 OUT B A 15 Audio Data CH6 IN ...

Page 7: ...nt on IN Red logic transitions present on IN Off logic one V present on IN This represents the data signals being transmitted on the optical fibre Data Present CH1 8 RX Green logic zero V present on OUT Red logic transitions present on OUT Off logic one V present on OUT This represents the data signals being received on the optical fibre BANK A When RS485 RS422 data daughter board fitted Data Pres...

Page 8: ...elieved to be accurate No responsibility is assumed by AMG for its use Page 8 of 12 AMG4688AR Instruction Sheet D18179 01 doc Audio Present RX Green audio present 40dBm Red audio present 0dBm overload at 6dBm Off audio not present or 40dBm This represents the audio signals being received from the optical fibre ...

Page 9: ...snag or get trapped To replace the PCB s into the case slide the PCB s gently into the case aligning the boards with the appropriate slots Ensure that the fibre do not snag or get trapped Safety AMG Optical Fibre Products use Class 1 laser systems in accordance with EN 60825 2 2000 It is always advisable to follow good practice when working with optical fibre systems This includes Do not stare wit...

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Page 11: ... 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 Page 11 of 12 AMG4688AR Instruction Sheet D18179 01 doc This page is intentionally blank ...

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