AMG AMG4781ER Bedienungsanleitung
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 8
AMG4781ER Instruction Sheet
D32037-00.doc
AMG4781ER Instruction
Manual
8 Video Transmit Unit with Ethernet
The AMG4781ER is a rackmount eight channel video transmit unit designed to transmit 8 video
signals and provide full duplex 100BaseT Ethernet connectivity over two singlemode fibres.
The AMG4781ER is designed to plug into an AMG2009 or AMG2015 subrack, which in turn fits into a
19" rack system.
The AMG4781ER is designed to operate with AMG4782E or rackmount equivalent AMG4782ER eight
channel video receive 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
AMG4781ER Instruction Sheet
D32037-00.doc
Contents
Introduction 3
Unit Functional Schematic.................................................................................................................. 3
Optical Connection ............................................................................................................................. 3
Ethernet Operation 3
Connections 4
Video Input Connections .................................................................................................................... 4
Optical Connections ...........................................................................Error! Bookmark not defined.
Power Connection .............................................................................................................................. 4
Ethernet Connection........................................................................................................................... 4
Front Panel Indicators 5
Power LED.......................................................................................................................................... 5
Video Input LED’s ............................................................................................................................... 5
Fibre Optic LED’s ............................................................................................................................... 5
Ethernet Data LED’s ........................................................................................................................... 5
Physical Information 6
Dimensions......................................................................................................................................... 6
Mounting Details................................................................................................................................. 6
Removal / replacement from / to the Case......................................................................................... 6
Safety 6
Maintenance and Repair 6
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
AMG4781ER Instruction Sheet
D32037-00.doc
Introduction
Unit Functional Schematic
The AMG4781ER transmits up to 8 video
signals to the AMG4782E.
Ethernet connectivity is also provided
between the two units.
Optical Connection
The AMG4781ER is connected as illustrated below when used with an AMG4782ER 8-channel
receive unit acting as a point to point system.
Ethernet Operation
In order for the AMG system to transmit Ethernet signals, an onboard RJ45 Ethernet interface or
X16003 Ethernet interface adaptor should be fitted to both the Transmit unit and the Receive unit.
The Ethernet interface can operate at either 10Mbits/s half duplex, or 100Mbit/s full duplex, and data is
transmitted from one port the other port with the minimum of delay or buffering.
The 100BaseT port does not implement MDI/MDIX; it should be connected with a straight though
cable to an external switch port and with a cross over cable when connected directly to a PC or DTE.
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
AMG4781ER Instruction Sheet
D32037-00.doc
Connections
Video Input Connections
No. of channels....................................8
Connector ............................................75 ohm BNC Socket.
Input Impedance..................................75 ohm terminated.
Input Level ...........................................1 volt p-p nominal
Frequency Response...........................10Hz to 7MHz.
Optical Connections
PRIMARY OPTO OUT
Connector ............................................LC/PC
Primary Optical Launch Power............-5dBm
Wavelength..........................................1310nm
Optical Fibre ........................................Singlemode
PRIMARY OPTO IN
Connector ............................................LC/PC
Primary Optical Sensitivity...................-22dBm
Wavelength..........................................1310nm
Optical Fibre ........................................Singlemode
Power Connection
Power supply .......................................from plug in connection on the AMG2009 / AMG2015 subrack
Power consumption.............................10 Watts max.
Ethernet Connection
Ethernet Data Connector ....................RJ45
Interface...............................................Auto-negotiation up to 100BASE-TX full duplex
Ethernet Data Rate..............................Maximum 100Mb/s total Ethernet traffic on fibre
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 5 of 8
AMG4781ER Instruction Sheet
D32037-00.doc
Front Panel Indicators
Power LED
Power ..................................................Green - unit powered
Off - no power applied to unit
Video Input LED’s
Video Present CH1-8 ..........................Green - video signal present on input BNC
R/G - channel present but no video on I/P BNC
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 not transmitting
Ethernet Data LED’s
BANK A
Data Present TX (Ethernet).................Green - data present on the Ethernet input
Off - no data present on the Ethernet input
This represents the Ethernet signals being transmitted onto the optical fibre
Data Present RX (Ethernet) ................Green - data present on the Ethernet input
Off - no data present on the Ethernet input
This represents the Ethernet signals being received from the optical fibre
BANK B
Data Present TX .................................Green - RJ45 Ethernet port operating at 100Mbit/s
Red - RJ45 Ethernet port operating at 10Mbit/s
Data Present RX..................................Green - RJ45 Ethernet port operating full duplex
Off - RJ45 Ethernet port operating half duplex
Note: the RJ45 Ethernet auto-negotiates up to 100Mbit/s full duplex.
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
AMG4781ER Instruction Sheet
D32037-00.doc
Physical Information
Dimensions
Height...................................................3U Plug-in
Width....................................................14HP
Depth ...................................................170mm excluding connectors
Weight..................................................750grams
Mounting Details
The unit is designed to be mounted within an AMG2009 or AMG2015 Subrack on standard card
guides.
Removal / replacement from / to the Case
Note: - The AMG unit PCB's are static sensitive. Handle with proper care and 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 fixing 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 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 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 optical fibre 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 support 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 7 of 8
AMG4781ER Instruction Sheet
D32037-00.doc
This page 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 responsibility is assumed by AMG for its use.
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AMG4781ER Instruction Sheet
D32037-00.doc
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