AMG AMG4642T Manuel utilisateur
AMG Systems Ltd. reserves the right to make changes to this
document without notice. The information herein is bel
ieved to
be accurate. No responsibility is assumed by AMG for its use.
Page
1
of
8
AMG4642T
Instruction
Sheet
D18018
-
01.doc
AMG4642T
Instruction Manual
4 Channel Video Receive Unit for a Multimode Fibre Link
The
AMG4642T
is a standalone four channel video receive unit designed to receive 4 video signals
over one Multimode fibre.
The
AMG4642T
is designed to be powe
red using an
AMG2003
standalone power supply.
The
AMG4642T
is designed to operate with
AMG4641T
or rackmount equivalent
AMG4641TR
four
channel video transmit unit in a point to point 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.
Page
2
of
8
AMG4642T
Instruction
Sheet
D18018
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01.doc
Contents
Introduction
3
Unit Functional Schematic
................................
................................
................................
..................
3
Optical Connection
................................
................................
................................
.............................
3
Connections
4
Video Output Connections
................................
................................
................................
..................
4
Optical Connections
................................
................................
................................
...........................
4
Power Connection
................................
................................
................................
..............................
4
Front Panel Indicators
4
Power LED
................................
................................
................................
................................
..........
4
Video Output LED’s
................................
................................
................................
............................
4
Fibre Optic LED’s
................................
................................
................................
...............................
4
Physical Information
5
Dimensions
................................
................................
................................
................................
.........
5
Mounting Details
................................
................................
................................
................................
.
5
Removal / replacement from / to the Case
................................
................................
.........................
5
Safety
5
Maintenance and Repair
5
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
3
of
8
AMG4642T
Instruction
Sheet
D18018
-
01.doc
Introduction
Unit Functional Schematic
The
AMG4642T
receives up to 4 video
signals from the
AMG4641T
.
Optical Connection
The
AMG4642T
is connected as illustrated
below when used with an
AMG4641T
4
-
channel transmit
unit acting as a point to point system.
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
4
of
8
AMG4642T
Instruction
Sheet
D18018
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01.doc
Connections
Video Output Connections
No. of channels
................................
....
4
Connectors
................................
..........
75 ohm BNC Socket.
Output Impedance
...............................
75 ohm terminated.
Output Level
................................
........
1 Volt p
-
p nominal
Frequ
ency Response
...........................
10Hz to 7MHz.
Optical Connections
PRIMARY OPTO IN
Connector
................................
............
LC/PC
Primary Optical Sensitivity
...................
-
22dBm
Wavelength
................................
..........
1310nm
Optical Fibre
................................
........
Multimode 50/125 or 62.5/125**
**Note: the transmission distance is limited by the bandwidth of the Multim
ode 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 di
stances greater than 2km, to have the optical fibre tested.
Power Connection
Connector Type
................................
...
2.1mm screw lock long power jack
–
centre positive
Connector Partno.
................................
Switchcraft S761K, AMG G16125
-
00
Supply Voltage
................................
.....
13.5 to 18.0 Volts DC.
Maximum Power
................................
.
10 Wa
tts
Front Panel Indicators
Power LED
Power
................................
...................
Green
-
unit powered
Off
-
no power applied to unit
Video Output LED’s
Video Present CH1
-
4
...........................
Green
-
video signal present on output BNC
Org
-
channel present but no video on O/P BNC
Off
-
no video channel p
resent
Fibre Optic LED’s
Primary Opto Sync TX
.........................
Green
-
optical channel transmitting
Off
-
optical channel not transmitting
Primary Opto Sync RX
.........................
Green
-
optical channel receiving
Org
-
optical channel receiving but not sync.
Off
-
optical channel n
ot transmitting
AMG Systems Ltd. reserves the right to make ch
anges to this
document without notice. The information herein is believed to
be accurate. No responsibility is assumed by AMG for its use.
Page
5
of
8
AMG4642T
Instruction
Sheet
D18018
-
01.doc
Physical Information
Dimensions
Height
................................
..................
112mm
Width
................................
...................
170mm (excluding connectors)
Depth
................................
...................
70mm
Weight
................................
.................
1000grams
Mounting Details
The AMG unit is supplied with a clip
-
on mounting bracket which should be attached to a panel or wall
using 2 o
ff 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.
Removal / replacement from / to the Case
Note:
-
The AMG unit PCB's are static sensitive. Handle with proper care a
nd use normal electrostatic
discharge (ESD) procedures. Use properly grounded protection (for example, wrist straps) when
handling the PCB.
To remove units from the case to access the data expansion boards and the daughter boards, remove
the 2 or 4 fixin
g screws on the rear panel and slide the PCB's out of the case.
Ensure that the fibres do not 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 f
ibre 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 with u
nprotected 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 optical f
ibre systems, please see
EN 60825
-
2:2000 or your local safety officer.
Maintenance and Repair
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 sup
port centre or contact:
AMG Systems Ltd.
at
3 The Omega Centre, Stratton Business Park, Biggleswade, Beds., SG18 8QB, UK.
Phone
+44 (0) 1767 600 777
Technical Support
+44 (0) 1767 604 491
Email
techsupport@amgsystems.com
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
6
of
8
AMG4642T
Instruction
Sh
eet
D18018
-
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This pa
ge is intentionally blank.
AMG Systems Ltd. reserves the right to make changes to this
document without notice. The information herein is believed to
be accurate. No res
ponsibility is assumed by AMG for its use.
Page
7
of
8
AMG4642T
Instruction
Sheet
D18018
-
01.doc
This page is intentionally blank.
AMG Systems Ltd. reserves the right to make changes to this
do
cument without notice. The information herein is believed to
be accurate. No responsibility is assumed by AMG for its use.
Page
8
of
8
AMG4642T
Instruction
Sheet
D18018
-
01.doc
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