AMG AMG5716A8R-DR 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 AMG5716A8R-DR Instruction Sheet

D17291-00.doc

AMG5716A8R-

Instruction Manual

Single Channel Video Receive Unit with one Bi-directional

Data Channel and six Uni-directional Alarms plus Dual

Redundant Operation for a Singlemode Fibre Link

The AMG5716A8R-DR is a rackmount one channel video receive unit designed to receive 1 video

signal plus 6 Uni-directional alarms and transmit and receive 1 data signal and provides Dual

Redundant operation over two Singlemode optical fibres.

The AMG5716A8R-DR is designed to plug into an AMG2009 or AMG20015 subrack, which in turn fits

into a 19" rack system.

The AMG5716A8R-DR is designed to operate with two AMG5715A7 / AMG5715A7R single channel

video transmit units for Dual Redundant operation 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 AMG5716A8R-DR Instruction Sheet

D17291-00.doc

Contents

Introduction 3

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

Connections 3

Video Output Connections.................................................................................................................. 3

Power Connection .............................................................................................................................. 3

Optical Connections Singlemode 3

Optical Connection ............................................................................................................................. 4

Front Panel Indicators 5

Power LED.......................................................................................................................................... 5

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

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

Data and Alarm Channel Configuration 6

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

Data Channel Configuration ............................................................................................................... 7

Data Interface Connections ................................................................................................................ 7

Alarm Interface Connections .............................................................................................................. 8

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 AMG5716A8R-DR Instruction Sheet

D17291-00.doc

Introduction

Unit Functional Schematic

The AMG5716A8-DR receives one

video signal plus one data and six

uni-directional alarm signals from

either of two AMG5715A7 transmit

units A & B.

It also transmits 1 data signals to the

selected AMG5715A7 A or B unit.

Dual Redundancy is provided such

that if the fibre optic signal is lost from

transmit Channel A, the signal and

data from transmit Channel B is used

instead.

Channel failures alarm outputs are

provided to indicate the loss of either

or both A/B optical signal.

A test mode input is also provided

which may be used to manually select

channel B for validation purposes.

Connections

Video Output Connections

No. of channels.................................... 1

Connectors .......................................... 75 ohm BNC Socket.

Output Impedance ............................... 75 ohm terminated.

Output Level ........................................ 1 Volt p-p nominal

Frequency Response .......................... 10Hz to 7MHz.

Power Connection

Power supply .......................................From plug in connection on the AMG2009 or AMG2015 subrack

Power consumption ............................. 1.5 Watts max.

Optical Connections Singlemode

No. of Optical Connections.................. 1 per video channel

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

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

Primary Optical Launch Power............ -10dBm

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

Primary Optical Sensitivity................... -30dBm

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 AMG5716A8R-DR Instruction Sheet

D17291-00.doc

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

Minimum Optical Dynamic Range .......20dB.

Optical Connection

The AMG5716A8R-DR connections are illustrated in the following example which shows two

AMG5715A7 transmit units together with an AMG5716A8R-DR rackmount receive unit configured as

a dual redundant single 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 5 of 8 AMG5716A8R-DR Instruction Sheet

D17291-00.doc

Front Panel Indicators

The Dual Redundant feature means that of the 2 Channels (A & B) available - the LED's representing

the active channel are used. For example - if Channel A is active then the LEDs relevant to Channel A

are displayed. Alternatively if Channel B is active then the LED's relevant to Channel B are displayed.

Power LED

Power / Video / Opto ........................... Green - Video present & opto sync.

R/G - Opto sync. but no video present.

Red - No 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

Channels 1-2

ALARM OUT........................................ Green - Alarm ON / Contacts closed.

Off - Alarm OFF / Contacts open.

Aux Ch A 1-4

ALARM OUT........................................ 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 AMG5716A8R-DR Instruction Sheet

D17291-00.doc

Data and Alarm Channel Configuration

The AMG5716A8R-DR sends and receives data to/from one AMG5715A7 or AMG5715A7R

rackmount equivalent single channel transmit unit. The physical data interface RS-485, RS-422 or RS-

232 is selectable by the user with the slide switch mounted on the main PCB inside the enclosure.

6 uni-directional alarms are also provided, each of which can receive an on/off signal from an

AMG5715A7 and are typically used to convey contact closure status.

Data Channel Configuration

Each 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 corresponding mode switch inside the enclosure. Every 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 0 respectively. It is important therefore to terminate the RS-485 bus or

the RS-422 input bus using 120Ω if 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 the 750Ω the 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.

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 AMG5716A8R-DR Instruction Sheet

D17291-00.doc

Data Channel Configuration

The AMG5716A8R-DR is designed to operate with two AMG5715A7 or AMG5715A7R single channel

video transmit units to provide Dual Redundant functionality.

Each transmit unit is connected to the receive unit by a separate fibre or pair of optical fibres which

carry the Video and Serial data to/from each transmit unit. The incoming light signals from the fibres

are monitored by the receiver to determine which signal source (transmit unit) is to be used.

a) Normal situation : Channel A & Channel B light signals are both present - The data from Channel

A is used. Channel A/B failure alarm O/P's are inactive.

b) Channel A Failure : Channel B light signal only is present - The data from Channel B is used.

Channel A failure alarm O/P is active.

c) Channel B Failure : Chanel A light signal only is present - The data from Channel A is used,

Channel B failure alarm O/P is active.

Data Interface Connections

Data Channel Dual Redundant

Connector

Pin No. RS-485

[switch top]

RS-422

[switch middle]

RS-

232

[switch bottom]

Chan A/B Fail /

DR Test

1IN + (A) IN Test Mode IN -

2IN - (B) N/C

3GND GND GND CHB Fail O/P -

4CHB Fail O/P +

5CHA Fail O/P -

6CHA Fail O/P +

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

8IN/OUT - (B) OUT - (B) OUT Test Mode IN +

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

The AMG5716A8R-DR provides 6 uni-directional alarm / contact closure outputs.

Alarm Output 1 : Provides a pair of normally open, volt-free contacts from a solid-state relay.

Alarm Output 2 : Provides a normally open, switched contact to 0V/GND from a solid-state relay.

Channel A Fail Output : Provides a pair of normally open, volt-free contacts from a solid-state relay.

Channel B Fail Output : Provides a normally open, switched contact to 0V/GND from a solid-state

relay.

Aux. Channel Alarm Outputs 1-4

Each alarm output uses an NPN open collector interface, with a maximum load current of 50mA at

+24Vdc.

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 AMG5716A8R-DR Instruction Sheet

D17291-00.doc

Alarm Interface Connections

Alarms 1 & 2, Aux Channels A/B Alarms 1-4

Alarms 1-2 Aux. Channel A/B Alarms 1-4

Connector Pin

No. Alarm 1 Alarm 2 Aux Ch A Aux Ch B

1ALARM 1 OUT + ALARM 1 OUT +

2ALARM 2 OUT + ALARM 2 OUT +

3ALARM 2 GND GND GND

4ALARM 2 OUT + ALARM 3 OUT + ALARM 3 OUT +

5ALARM 1 OUT - ALARM 4 OUT + ALARM 4 OUT +

6ALARM 1 OUT + - -

Physical Information

Dimensions

Height...................................................3U Plug-in

Width....................................................7HP

Depth ...................................................170mm excluding connectors

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

Mounting Details

The unit is designed to be mounted within an AMG2009 or AMG2015 Subrack on standard card

guides.

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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