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 1of 2 AMG2681 Instruction
Sheet D15252-01
AMG2681
Instruction Manual
Eight Channel Video Only Transmit Unit
The AMG2681 is a standalone eight channel video transmit unit designed to transmit eight video
signals on a single multimode fibre. It is designed to be powered from an AMG2002 power supply.
The AMG2681 is designed to operate with the AMG2682R eight channel video receivers.
Connections
Video Input Connection
Connector ...........................................8 off 75 ohm BNC Socket.
Input Impedance..................................75 ohm terminated.
Input Level ...........................................1 volt p-p nominal
Frequency Response ..........................10Hz to 5.75MHz min.
Optical Connections
OPTO OUT
Connector............................................ST
Optical Launch Power .........................-5dBm
Wavelength..........................................1310nm
Note: - The transmission distance on multimode fibre will tend to be limited by the bandwidth of the
fibre rather than the optical dynamic range. It is recommended that 50/125 optical fibre is used as this
will have a higher bandwidth than 62.5/125 fibre. The AMG2681 and AMG2682R will transmit and
receive over a minimum of 1km of 62.5/125 fibre and will typically transmit and receive over 2km of
50/125. The transmission distance will typically be longer than this but will depend of the performance
of the optical fibre.
218mm
109mm
193mm between mounting slot centres
AMG
26
8
1
8 CHANNEL VIDEO
TRANSMIT
TX
O
O
RX
FRONT PANEL INDICATORS
VIDEO PRESENT
CH 1 CH2 CH 5 CH6
O O O O
CH 3 CH4 CH 7 CH8
O O O O
POWER
OGND
+12- 16 Volts dc
OPTO
IN
REAR PANEL CONNECTIONS
CH 5
OPTO
OUT
GND
OUT-
OUT+
IN-
IN+
DATA
CONNECTIONS
RS 422
OR
RS 485
*
TX
O O
RX TX
O O
RX
CH1-4 CH5 -8
DATA PRESENT
VIDEO
CH 1
CH 6
CH 7
CH 8 CH 4
CH 2
CH 3
DATA
5-8 DATA
1-4
POWER
5-8 POWER
1-4
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 2of 2 AMG2681 Instruction
Sheet D15252-01
Power Connection
Connector............................................2off removable screw terminal connectors (3.5mm spacing)
Manufacturers Part No. Phoenix/Combicom MC1-5/2-ST-3.5
AMG Part No.G00047-00
Power requirement ..............................12 volts to 16 volt DC @
1500mA (2 amp turn on
current)
Connections.........................................See schematic
+12 – 16 Volts on lower pin
0 Volts on upper pin
Indicators
Power...................................................Green – unit powered
Off – no power applied to unit
Opto Sync TX ......................................Green - optical channel transmitting
Off - optical channel not transmitting
Opto Sync RX......................................Green - optical channel receiving
Off - optical channel not receiving
Video Present CH1 to CH8..................Green – video signal present on video CH1 input BNC
Off – no video present on video CH1 input BNC
Physical Information
Dimensions
Height ..................................................109mm
Width....................................................218mm
Depth ...................................................120mm
Weight..................................................1100grams
Mounting Details
The unit is designed to mount into a panel via the two mounting slots of 4.5mm x 10mm.
Safety
The 2700 series of products uses a Class 1 laser system in accordance with EN 60825-2:2000.
However it is always advisable to follow good practice when working with optical fibre systems. This
includes:
Do not stare with unprotected eyes or with any unapproved collimating device at fibre ends or
connector faces, or point them at other people.
Use only approved filtered or attenuating viewing aids
For other safety issues and advice on good practice associated with the optical fibres systems see EN
60825-2:2000 or your local safety officer.
Maintenance
There are no user serviceable parts within the AMG2700 products.
In case of problem or failure contact your local support centre or AMG Systems Ltd, Technical Support
Department on tel. +44 (0) 1767 600777.
See unit data sheet for full specification.
OPTO IN D
A
T
A
CH 8 CH 4
OPTO OUT
Channels 1 to 4
Power
Ground
+12 – 16 Volts dc
D
A
T
A
Channels 5 to 8
Power
Ground
+12 – 16 Volts dc
-
1
-
2
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