AMG AMG4723-CWDMn-MP Manual de usuario

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

AMG4723-CWDMn-MP Instruction

Sheet D18970-01.doc

AMG4723-CWDMn-MP

Instruction Manual

2 Channel Video Transmit Unit with Bi-directional Data

Channel for CWDM

The AMG4723-CWDMn-MP is a standalone two channel video transmit unit designed to transmit 2

video signals and transmit and receive 1 data signal over two singlemode fibres.

The AMG4723-CWDMn-MP transmits on a CWDM wavelength defined by the 'n' in the CWDMn

partno. as detailed in the table overleaf, but can receive from any 1310nm or 1550nm band

wavelength.

The AMG4723-CWDMn-MP is designed to be powered using an AMG2003 standalone power supply.

The AMG4723-CWDMn-MP is designed to operate with AMG4724-CWDMn-MP or rackmount

equivalent AMG4724-CWDMn-R two 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

AMG4723-CWDMn-MP Instruction

Sheet D18970-01.doc

Contents

Introduction 3

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

Standard AMG CWDM Wavelengths ................................................................................................. 3

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

Connections 4

Video Input Connections .................................................................................................................... 4

Optical Connections ........................................................................................................................... 4

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

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

Data and Audio Channel Configuration 5

Data and Audio Channel Configuration.............................................................................................. 5

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

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

Front Panel Indicators 6

Power LED.......................................................................................................................................... 6

Video Input LED’s ............................................................................................................................... 6

Fibre Optic LED’s ............................................................................................................................... 6

Low Speed Data LEDs ....................................................................................................................... 6

Physical Information 7

Dimensions......................................................................................................................................... 7

Mounting Details................................................................................................................................. 7

Removal / replacement from / to the Case......................................................................................... 7

Safety 7

Maintenance and Repair 7

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

AMG4723-CWDMn-MP Instruction

Sheet D18970-01.doc

Introduction

Unit Functional Schematic

The AMG4723-CWDMn-MP transmits up

to 2 video and 1 data signal to the

AMG4724-CWDMn-MP receive unit using

a wavelength defined by 'n' in the CWDMn

partno.

The example shown in the schematic is

where 'n' = 3, i.e. the Tx wavelength is

1550nm.

It also receives 1 data signal transmitted

on any 1310nm or 1550nm band

wavelength from the AMG4724-CWDMn-

MP.

Standard AMG CWDM Wavelengths

CWDM

n/m

Wavelength

(nm)

CWDM

n/m

Wavelength

(nm)

CWDM

n/m

Wavelength

(nm)

CWDM

n/m

Wavelength

(nm)

1510

1490

1350

1450

1530

1590

1370

1270

1550

1610

1390

1290

1570

1310

1410

1470

1330

1430

For CWDM wavelengths 11-16, ITU-T G652C or D fibre is recommended.

Optical Connection

The AMG4723-CWDMn-MP is connected as illustrated below when used with an AMG4724-CWDMn-

MP receive unit acting as a point to point system.

Alternatively, the AMG4723-CWDMn-MP and AMG4724-CWDMn-MP may be interconnected with

additional system units operating at different optical wavelengths on the same fibre using external

couplers.

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

AMG4723-CWDMn-MP Instruction

Sheet D18970-01.doc

Connections

Video Input Connections

No. of channels....................................2

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............0dBm to +5dBm

Wavelength..........................................Defined by 'n' in the AMG Partno.

Optical Fibre ........................................Singlemode

PRIMARY OPTO IN

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

Primary Optical Sensitivity...................-22dBm

Wavelength..........................................Any 1310nm or 1550nm band

Optical Fibre ........................................Singlemode

Optical Overload..................................-5dBm

NOTE: The optical launch power may overload the input of an AMG receiver if connected directly. A

minimum of 5dB loss is required to ensure correct operation.

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 .................................5 Watts

Data and Audio Channel Connections

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 CHANNEL B

Data Channel B ...................................Not Present

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

AMG4723-CWDMn-MP Instruction

Sheet D18970-01.doc

Data and Audio Channel Configuration

The AMG4723-CWDMn-MP and rackmount equivalent AMG4723-CWDMn-R sends and receives

data to/from Channel A. Channel B is not available. Channel A is a single data interface selectable by

the user with the slide switch on the rear panel.

Data Interface Connections Channel A

RJ45 Pin

No.

Channel A

Cat 5/6 Cable

Colour Code T568B

RS485

[switch high]

RS422

[switch mid]

RS232

[switch low]

IN + (A)

GND

White/orange

IN - (B)

Orange

White/green

Blue

White/blue

Green

IN/OUT + (A)

OUT + (A)

N/A

White/brown

IN/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.

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.

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

AMG4723-CWDMn-MP Instruction

Sheet D18970-01.doc

Front Panel Indicators

Power LED

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

Off - no power applied to unit

Video Input LED’s

Video Present CH1-2...........................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

Low Speed Data LEDs

Channel A

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

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

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

AMG4723-CWDMn-MP Instruction

Sheet D18970-01.doc

Physical Information

Dimensions

Height..................................................112mm

Width ...................................................170mm (excluding connectors)

Depth...................................................35mm

Weight .................................................750grams

Mounting Details

The AMG unit is supplied with a clip-on mounting bracket which should be attached to a panel or wall

using 2 off 4.0mm screws. 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 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 8 of 8

AMG4723-CWDMn-MP Instruction

Sheet D18970-01.doc

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