AMG AMG5615 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 8 AMG5615

Instruction

Sheet

D17083-

07.doc

AMG5615

Instruction Manual

Single Channel Video Transmit Unit with one Bi

directional

Data Channel and two Uni

directional Alarms for a

Multimode Fibre Link

The AMG5615 is a compact standalone one channel video transmit unit designed to transmit 1 video

signal and transmit and receive 1 data signal plus 2 Uni-directional alarms over one Multimode optical

fibre.

The AMG5615 is designed to be powered using an AMG2001 standalone power supply.

The AMG5615 is designed to operate with an AMG5616 / AMG5616R single channel or AMG5626 /

AMG5626R dual channel video receive unit in a point to point configuration. The R suffix in the partno.

indicates a rackmount 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 AMG5615

Instruction

Sheet

D17083-

07.doc

Contents

Introduction 3

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

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

Connections 4

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

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

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

Data and Alarm Channel Connections ............................................................................................... 4

Front Panel Indicators 5

Power LED Video & Data ................................................................................................................... 5

Low Speed Data LEDs ....................................................................................................................... 5

Alarm LEDs......................................................................................................................................... 5

Data and Alarm Channel Configuration 6

Data Channel Configuration ............................................................................................................... 6

Data Interface Connections ................................................................................................................ 6

Alarm Channel Configuration ............................................................................................................. 7

Uni-directional Alarm Interface Connections ...................................................................................... 7

Physical Information 8

Dimensions ......................................................................................................................................... 8

Mounting Details................................................................................................................................. 8

Safety 8

Maintenance and Repair 8

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 AMG5615

Instruction

Sheet

D17083-

07.doc

Introduction

Unit Functional Schematic

The AMG5615 transmits 1 video plus 1

data and 2 uni-directional alarm signals to

the AMG5616 receive unit.

It also receives 1 data signal transmitted

from the AMG5616.

Optical Connection

The AMG5615 connections are illustrated in the following example which shows two transmit units

together with an AMG5626R two channel rackmount receive unit configured as a dual channel 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 AMG5615

Instruction

Sheet

D17083-

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Connections

Video

Input

Connections

No.

channels

....................................1

Connector

............................................75

ohm

BNC

Socket.

Input

Impedance

..................................75

ohm

terminated.

Input

Level

...........................................1

volt

p-p

nominal

Frequency

Response...........................10Hz

7MHz.

Optical

Connections

Multimode

No.

Optical

Connections

..................1

per

video

channel

Optical

Fibre

........................................Multimode

50/125

62.5/125**

Connector

............................................SC/PC

Minimum

Optical

Launch

Power

..........-10dBm

Transmit

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

Minimum

Optical

Sensitivity.................-30dBm

Receive

Wavelength............................1550nm

Minimum

Optical

Dynamic

Range

.......20dB.

**Note:

the

transmission

distance

limited

the

bandwidth

the

Multimode

optical

fibre.

The

optical

data

rate

155Mbits/s,

which

may

restrict

operation

maximum

fibre

length

7km,

although

most

cases

the

units

will

operate

successfully

over

longer

fibre

lengths.

advisable

however

for

distances

greater

than

7km,

have

the

optical

fibre

tested.

Power

Connection

Connector

Type

...................................Removable

2-pin,

3.81mm,

Screw

Terminal

Connector

Partno.................................Phoenix

1803578

Supply

Voltage.....................................+12

+15Vdc

Maximum

Power

..................................1.5

Watts

Data and Alarm Channel Connections

No. of Data Channels ..........................1

No. of Alarm Channels.........................2

Connector ............................................Removable 8-pin, 3.81mm, Screw Terminal

Connector Partno.................................Phoenix 1803633

Data Interface ......................................RS-232, RS-422 or R-S485. Selected by slide switch above the

BNC connector.

RS-232

–

Switch Position - Left

RS-422

–

Switch Position - Centre

RS-485

–

Switch Position - Right

Alarm input...........................................Contact Closure pull-up is 330R to +3V3

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 AMG5615

Instruction

Sheet

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07.doc

Front Panel Indicators

Power LED Video & Data

Power / Video / Opto ........................... Green - Video input & Opto sync.

R/G - Opto sync. but no Video input.

G/R - Video input but no Opto sync.

Red - Unit powered, no Video or Opto sync.

Off

- No power applied to unit

Low Speed Data LEDs

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

Red - logic transitions present on input IN+

Off

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

IN corresponds to the data signals being transmitted onto the optical fibre.

Data Present OUT (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 OUT (RS232) ................ Green - logic zero (+V) present on OUT+

Red - logic transitions present on OUT+

Off

- logic one (-V) present on OUT+

OUT corresponds to the data signals being received from the optical fibre.

Alarm LEDs

ALARM 1 IN......................................... Green - Alarm ON / Contacts closed.

Off - Alarm OFF / Contacts open.

ALARM 2 IN......................................... Green - Alarm ON / Contacts closed.

Off - Alarm OFF / Contacts open.

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 AMG5615

Instruction

Sheet

D17083-

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Data and Alarm Channel Configuration

The AMG5615 transmit unit sends and receives data to/from an AMG5616 or rackmount equivalent

AMG5616R receive unit. The physical data interface RS-485, RS-422 or RS-232 is selectable by the

user with the slide switch on the front panel.

There are also two uni-directional alarm channels provided which send on/off signals from the

AMG5615 to the receive unit and are typically used to transmit contact closure status.

Data Channel Configuration

The low speed data channel provides an RS-232, RS-422 (full duplex, four wire) or RS-485 (half

duplex, two wire) interface defined by the mode switch on the front panel. The data channel as

shipped from the factory is set up for RS-485 operation unless otherwise requested.

The data input for both the RS-485 and the RS-422 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 RS-485 bus or

the RS-422 input bus using 120Ωif a pre-bias is present on the RS-485 or RS-422 bus.

A large number of third party equipment manufacturers apply a pre-bias on their RS-485 bus. This pre-

bias is applied by pulling one arm of the RS-485 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 than 750Ωthe bus can be multiple terminated as required to ensure that a tri-

state level is detected.

The system detects a tri-state input condition on the data channel bus when in RS-485 or RS-422

mode.

Data Interface Connections

Data Channel

Connector

Pin No. RS-485

[switch right]

RS-422

[switch mid]

RS-232

[switch left]

1IN + (A) IN

2IN - (B)

3GND GND GND

7IN/OUT + (A) OUT + (A)

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

Note: (A) or (B) in brackets in the above table refers to RS-485 / RS-422 data specification.

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 AMG5615

Instruction

Sheet

D17083-

07.doc

Alarm Channel Configuration

The AMG5615 provides 2 uni-directional alarm / contact closure inputs. Each alarm input is typically

connected to a contact closure switch.

Each ALARM IN+ input incorporates a 330R pull-up resistor to the internal +3V3 supply.

Uni

directional Alarm Interface Connections

Alarm Interface

Connector

Pin No. Alarm 1 Alarm 2

3GND

4ALARM 1 IN +

5GND

6ALARM 2 IN +

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 AMG5615

Instruction

Sheet

D17083-

07.doc

Physical Information

Dimensions

Height...................................................56mm

Width....................................................55mm (excluding connectors)

Depth ...................................................25mm

Weight..................................................200grams

Mounting Details

The unit is designed to be mounted using the clip holder supplied, which can be fixed to a wall or

panel using 2 off 4mm screws.

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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