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

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

AMG4642T

Instruction

Sheet

D18018

01.doc

Contents

Introduction

Unit Functional Schematic

................................

..................

Optical Connection

................................

.............................

Connections

Video Output Connections

................................

..................

Optical Connections

................................

...........................

Power Connection

................................

..............................

Front Panel Indicators

Power LED

................................

..........

Video Output LED’s

................................

............................

Fibre Optic LED’s

................................

...............................

Physical Information

Dimensions

................................

.........

Mounting Details

................................

Removal / replacement from / to the Case

................................

.........................

Safety

Maintenance and Repair

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

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

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

accurate. No responsibility is assumed by AMG for its use.

Page

AMG4642T

Instruction

Sheet

D18018

01.doc

Connections

Video Output Connections

No. of channels

................................

....

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

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

...........................

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

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.

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

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

AMG4642T

Instruction

eet

D18018

01.doc

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

AMG4642T

Instruction

Sheet

D18018

01.doc

This page is intentionally blank.

AMG Systems Ltd. reserves the right to make changes to this

cument without notice. The information herein is believed to

be accurate. No responsibility is assumed by AMG for its use.

Page

AMG4642T

Instruction

Sheet

D18018

01.doc

This page is intentionally blank.

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