AMG AMG4647B Manuel utilisateur

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 10 AMG4647B Instruction Sheet

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issue 01

AMG4647B

Instruction Manual

4 Channel Video Transmit Unit with 9 Bi-directional Data

and Audio Channels for a Multimode Fibre Link

The AMG4647B is a standalone four channel video transmit unit designed to transmit 4 video signals

and transmit and receive up to 9 data or audio signals over two Multimode fibres. The 9 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 B.

The AMG4647B is designed to be powered using an AMG2003 standalone power supply.

The AMG4647B is designed to operate with AMG4648B or rackmount equivalent AMG4648BR four

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 10 AMG4647B Instruction Sheet

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issue 01

Contents

Introduction 3

Unit Functional Schematic .................................................................................................................. 3

Optical Connection ............................................................................................................................. 3

Connections 3

Video Input Connections..................................................................................................................... 3

Optical Connections............................................................................................................................ 3

Power Connection .............................................................................................................................. 4

Data and Audio Channel Connections ............................................................................................... 4

Data and Audio Channel Configuration 5

Data and Audio Channels................................................................................................................... 5

Data Channel A Configuration ............................................................................................................ 5

Data Interface Connections Channel A .............................................................................................. 5

Data Bank B Configuration ................................................................................................................. 6

Data Interface Daughter Board Options ............................................................................................. 6

Data and Audio Channel Configuration .............................................................................................. 6

Daughter Board Layout....................................................................................................................... 6

Data and Audio Daughter Board Fitting Instruction ............................................................................ 6

Data and Audio Connections Bank B ................................................................................................. 7

Front panel Indicators 8

Power LED.......................................................................................................................................... 8

Video Input LED’s ............................................................................................................................... 8

Fibre Optic LED’s................................................................................................................................ 8

Low Speed Data LEDs ....................................................................................................................... 8

Physical Information 10

Dimensions ....................................................................................................................................... 10

Mounting Details ............................................................................................................................... 10

Removal / replacement from / to the Case ....................................................................................... 10

Safety 10

Maintenance and Repair 10

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 10 AMG4647B Instruction Sheet

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issue 01

Introduction

Unit Functional Schematic

The AMG4647B transmits up to 4 video

and 9 data and audio signals to the

AMG4648B.

It also receives up to 9 data and audio

channels transmitted from the

AMG4648B.

Optical Connection

The AMG4647B is connected as illustrated below when used with an AMG4648B 4-channel receive

unit acting as a point to point system.

Connections

Video Input Connections

Connector ............................................75 ohm BNC Socket.

Input Impedance ..................................75 ohm terminated.

Input Level ...........................................1 volt p-p nominal

Frequency Response...........................10Hz to 5.75MHz min.

No of channels .....................................4

Optical Connections

PRIMARY OPTO OUT

Connector ............................................LC/PC

Primary Optical Launch Power ............-5dBm

Wavelength ..........................................1310nm

Optical Fibre.........................................Multimode 50/125 or 62.5/125**

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 10 AMG4647B Instruction Sheet

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issue 01

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 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 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 ................................ 15 Watts

Data and Audio Channel Connections

Total No. of Data Channels................. 9 channels

DATA CHANNEL A

Data Channel A................................... 1 channel

Data Connector................................... RJ45

Channel A Interface On Board Data Interface – RS232, RS422 or RS485. Selected by slide switch

above RJ45 connector.

RS485 – switch position - high (closest to BNC connections)

RS422 – switch position – middle

RS232 – switch position – low (furthest from BNC connections)

DATA BANK B

Data/Audio Channels – BANK A......... Not Used

Data/Audio Channels – BANK B......... 8 channels

Connector ........................................... 37-way D-Type female connector - shielded.

Connections ........................................ See appropriate section for connection and configuration details

For the data or audio channels to be present, appropriate data daughter boards must be fitted onto the

data expansion board slots.

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 10 AMG4647B Instruction Sheet

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issue 01

Data and Audio Channel Configuration

Data and Audio Channels

The AMG4647B and rackmount equivalent AMG4647BR sends and receives data to/from Channel A

and Bank B. Channel A is a single data interface selectable by the user with the slide switch on the

rear panel. Bank B carries up to 8 channels of data / audio, the physical interface of which is

determined by fitment of AMG data or audio daughter boards onto the B Channel data expansion

board slots.

Data Channel A Configuration

Channel A is always present and allows for a RS232, RS422 (full duplex, four wire) or RS485 (half

duplex, two wire) interface depending on the position of the switch located above the RJ45 connector.

The switch signifies the presence of the X16004 Low Speed Data/Audio Interface Board. If there are

LED's present on the RJ45 connector then an X16003 Ethernet Interface Board is fitted.

The data input for both the RS485 and the RS422 modes detects a tri-state input condition by

monitoring the differential voltage level across the input. A differential level below 600mV positive or

negative will be detected as a tri-state condition. A level above 600mV positive or negative will be

detected as a logic 1 or logic zero respectively. It is important therefore to terminate the RS485 bus or

the RS422 input bus using 120Ω if a pre-bias is present on the RS485 or RS422 bus.

A large number of third party equipment manufacturers apply a pre-bias on their RS485 bus. This

pre-bias is applied by pulling one arm of the RS485 bus high (+5 volts) and the other arm low (0 volts)

using high value resistors within the third party equipment. In order to ensure that the AMG equipment

detects a tri-state condition, then these resistors should have a value above 5kΩ. If the third party

bias resistors are less the 750Ω the bus can be double or triple terminated as required to ensure that a

tri-state level is detected.

Note: The Data Channel A is shipped from the factory set up for RS485 operation unless otherwise

requested.

Data Interface Connections Channel A

Channel A

RJ45 Pin

No.

RS485

[switch high]

RS422

[switch mid]

RS232

[switch low]

Cat 5/6 Cable

Colour Code T568B

1IN + (A) GND White/orange

2IN - (B) IN Orange

3 White/green

4 Blue

5 White/blue

6 Green

7IN/OUT + (A) OUT + (A) N/A White/brown

8IN/OUT - (B) OUT - (B) OUT Brown

Note: (A) or (B) in brackets in above table refers to RS485 / RS422 data specification, not Channel A,

Channel B.

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 10 AMG4647B Instruction Sheet

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issue 01

Data Bank B Configuration

Data Bank B channels are operational when fitted with appropriate daughter boards.

Data Interface Daughter Board Options

The data interface daughter board options are as follows:

Option

Code 'x'

Part No. Description

0 X12542 4 Wire Audio Interface Daughter Board

1 X04057 RS422/485 Data Interface Daughter Board

2 X04049 RS232 Data Interface Daughter 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. (See

appropriate section for removal instructions).

In order to enable a data channel an appropriate daughter board should be fitted in the appropriate

data channel slots on the data expansion boards. Each data interface board enables one bi-directional

channel.

Daughter Board Layout

The channel slots are as follows:

Data and Audio Daughter Board Fitting Instruction

The data and audio daughter boards pushed on to the pin headers mounted on the data expansion

boards. Ensure that the connectors are lined up correctly and not offset before pushing firmly in place.

Note that the data and audio channel numbers are associated with each slot. This allocates the pin

numbers on the rear panel connector together with the front panel LED indicators.

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 10 AMG4647B Instruction Sheet

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issue 01

Data and Audio Connections Bank B

The BANK B data/audio channels pin connections on the rear panel connectors are as follows:

No.

Description Bank Pin

No.

Description Bank

1 Audio/Data CH1 IN + (A) B 20 Audio/Data CH1 OUT + (A) B

2 Audio/Data CH1 IN - (B) B 21 Audio/Data CH1 OUT - (B) B

3 Audio/Data CH2 IN + (A) B 22 Audio/Data CH2 OUT + (A) B

4 Audio/Data CH2 IN - (B) B 23 Audio/Data CH2 OUT - (B) B

5 Audio/Data CH3 IN + (A) B 24 Audio/Data CH3 OUT + (A) B

6 Audio/Data CH3 IN - (B) B 25 Audio/Data CH3 OUT - (B) B

7 Audio/Data CH4 IN + (A) B 26 Audio/Data CH4 OUT + (A) B

8 Audio/Data CH4 IN - (B) B 27 Audio/Data CH4 OUT - (B) B

9 GND B 28 GND B

10 GND B 29 GND B

11 GND B 30 Audio/Data CH5 OUT + (A) B

12 Audio/Data CH5 IN + (A) B 31 Audio/Data CH5 OUT - (B) B

13 Audio/Data CH5 IN - (B) B 32 Audio/Data CH6 OUT + (A) B

14 Audio/Data CH6 IN + (A) B 33 Audio/Data CH6 OUT - (B) B

15 Audio/Data CH6 IN - (B) B 34 Audio/Data CH7 OUT + (A) B

16 Audio/Data CH7 IN + (A) B 35 Audio/Data CH7 OUT - (B) B

17 Audio/Data CH7 IN - (B) B 36 Audio/Data CH8 OUT + (A) B

18 Audio/Data CH8 IN + (A) B 37 Audio/Data CH8 OUT - (B) B

19 Audio/Data CH8 IN - (B) B

Note: (A) or (B) in brackets in above table refers to RS485/RS422 data specification not Bank A, B.

See Data or Audio Daughter Board Instruction Sheet for meaning of Audio/Data IN+, Audio/Data IN-

Audio/Data OUT+, and Audio/Data OUT- for each data type.

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 8 of 10 AMG4647B Instruction Sheet

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issue 01

Front panel Indicators

Power LED

Power .................................................. Green - unit powered

Off - no power applied to unit

Video Input LED’s

Video Present CH1-4 .......................... 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

R/G - optical channel receiving but not sync.

Off - optical channel not transmitting

Low Speed Data LEDs

Channel A

Data Present TX (RS485 or RS422)... Green - logic zero (+V, -V) present on IN+

Red - logic one (-V, V+) present on IN+

Off - tri-state off or no connection on IN+, IN-

Data Present TX (RS232)................... Green - logic zero (+V) present on input IN+

Red - logic transitions present on input IN+

Off - logic one (-V) present on input IN+

This represents the data signals being transmitted on the optical fibre

Data Present RX (RS485 or RS422) .. Green - logic zero (+V,-V) present on OUT+, OUT-

Red - logic one (-V,+V) present on OUT+, OUT-

Off - tri-state off or no connection on OUT+, OUT-

Data Present RX (RS232)................... 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 B (When RS232 data daughter board fitted)

Data Present CH1-8 TX ...................... Green - logic zero (+V) present 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

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 9 of 10 AMG4647B Instruction Sheet

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issue 01

BANK B (When RS485 / RS422 data daughter board fitted)

Data Present CH1-8 TX.......................Green - logic zero (+V, -V) present on IN+, IN-

Red - logic transitions present on IN+, IN-

Off - logic one (-V, +V) present on IN+, IN-

This represents the data signals being transmitted on the optical fibre

Data Present CH1-8 RX ......................Green - logic zero (+V, -V) present on OUT+, OUT-

Red - logic transitions present on OUT+, OUT-

Off - logic one (-V , +V) present on OUT+, OUT-

This represents the data signals being received on the optical fibre

BANK B (When audio daughter board fitted)

Audio Present CH1-8 TX .....................Green - audio present > -40dBm

Red - audio present > 0dBm (overload at +6dBm)

Off - audio not present or < -40dBm

This represents the audio signals being transmitted on the optical fibre

Audio Present CH1-8 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.

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 10 of 10 AMG4647B Instruction Sheet

D16593-01.doc

issue 01

Physical Information

Dimensions

Height.................................................. 132mm

Width................................................... 172mm (excluding connectors)

Depth................................................... 105mm

Weight................................................. 1200grams

Mounting Details

The unit is designed to be mounted on a panel using 4 off 4.0mm screws, see diagram on page 1.

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 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

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