AMG4788AERN-SF

Instruction Manual

8 Channel Video Receive Unit with up to 8 Bi-directional

Data and Audio Channels plus Ethernet - includes AMG

NMS Network Management Interface

The AMG4788AERN-SF is a rackmount eight channel video receive unit designed to receive 8 video signals and transmit and receive up to 8 data or audio signals plus full duplex 100BaseT Ethernet connectivity over one singlemode fibre. The 8 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 A.

The AMG4788AERN-SF is designed to plug into an AMG2005 or AMG2009 subrack, which in turn fits into a 19" rack system. It also includes an AMG Management Interface to allow management of the system using the AMG SNMP enabled Management software.

The AMG4788AERN-SF is designed to operate with AMG4787AE-SF or rackmount equivalent

AMG4787AER-SF eight 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 1 of 16 AMG4788AERN-SF Instruction Sheet

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Contents

Introduction 4

Unit Functional Schematic.................................................................................................................. 4

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

Connections 5

Video Output Connections.................................................................................................................. 5

Optical Connections ........................................................................................................................... 5

Power Connection .............................................................................................................................. 5

Ethernet Connection........................................................................................................................... 5

Data Channel Connections................................................................................................................. 5

Data and Audio Channel 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.............................................................................................................. 7

Front Panel Indicators 8

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

Video Output LED’s ............................................................................................................................ 8

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

Ethernet Data LED’s........................................................................................................................... 8

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

Ethernet Operation 10

Network Management 11

NMS Operation ................................................................................................................................. 11

SNMP ............................................................................................................................................... 11

Network Alarm Port .......................................................................................................................... 11

The Management Interface .............................................................................................................. 11

Alarm Output and Reset Operation .................................................................................................. 13

Physical Information 14

Dimensions ....................................................................................................................................... 14

Mounting Details ............................................................................................................................... 14

Removal / replacement from / to the Case....................................................................................... 14

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.

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Safety

Maintenance and Repair

14

14

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.

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Introduction

Unit Functional Schematic

The AMG4788AERN-SF receives up to 8 video and 8 data signals from the

AMG4787AE-SF .

It also transmits 8 data signal to the

AMG4787AE-SF .

Ethernet connectivity is also provided between the two units.

Optical Connection

The AMG4788AERN-SF is connected as illustrated below when used with an AMG4787AER-SF 8channel 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 be accurate. No responsibility is assumed by AMG for its use.

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Connections

Video Output Connections

No. of channels.................................... 8

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

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

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

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

Optical Connections

PRIMARY OPTO IN

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

Optical Fibre ........................................ One fibre - Singlemode

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

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

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

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

Power Connection

Power supply ....................................... from plug in connection on the AMG2009 / AMG2015 subrack

Power consumption............................. 10 Watts max.

Ethernet Connection

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

Interface............................................... Auto-negotiation up to 100BASE-TX full duplex

Ethernet Data Rate.............................. Maximum 50Mbits/s total Ethernet traffic on fibre

Data Channel Connections

Total No. of Data Channels ................. 8 channels

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

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

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

Connections......................................... See below for connection and configuration

For the data or audio channels to be present, the appropriate data daughter boards have to be fitted into 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.

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Data and Audio Channel Configuration

The AMG4788AE-SF and rackmount equivalent AMG4788AERN-SF sends and receives data in one bank - Bank A. Bank B is not used. The physical interface is determined by the fitting of AMG data or audio daughter boards onto the appropriate data expansion board slots.

Data Interface Daughter Board Options

The data interface daughter board options are as follows:

Option Code

'x'

0

1

2

3

4

5

6

Part No.

X12542

X04057

X04049

X04058

X12579

X12578

X13038

Description

4 Wire Audio Interface Daughter Board

RS422/485 Data Interface Daughter Board

RS232 Data Interface Daughter Board

20mA Current Loop Data Interface Daughter Board

TTL Data Interface Daughter Board

Contact Closure Data Interface Daughter Board

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. A data channel is active when a daughter board is installed in the required data channel slot. 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.

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Data and Audio Connections

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

Pin

No.

1

4

5

2

3

6

7

8

9

16

17

18

19

13

14

15

10

11

12

Description

Audio/Data CH1 IN + (A)

Audio/Data CH1 IN - (B)

Audio/Data CH2 IN + (A)

Audio/Data CH2 IN - (B)

Audio/Data CH3 IN + (A)

Audio/Data CH3 IN - (B)

Audio/Data CH4 IN + (A)

Audio/Data CH4 IN - (B)

GND

GND

GND

Audio/Data CH5 IN + (A)

Audio/Data CH5 IN - (B)

Audio/Data CH6 IN + (A)

Audio/Data CH6 IN - (B)

Audio/Data CH7 IN + (A)

Audio/Data CH7 IN - (B)

Audio/Data CH8 IN + (A)

Audio/Data CH8 IN - (B)

Bank

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

Pin

No.

20

23

24

21

22

25

26

27

28

35

36

37

32

33

34

29

30

31

Description

Audio/Data CH1 OUT + (A)

Audio/Data CH1 OUT - (B)

Audio/Data CH2 OUT + (A)

Audio/Data CH2 OUT - (B)

Audio/Data CH3 OUT + (A)

Audio/Data CH3 OUT - (B)

Audio/Data CH4 OUT + (A)

Audio/Data CH4 OUT - (B)

GND

GND

Audio/Data CH5 OUT + (A)

Audio/Data CH5 OUT - (B)

Audio/Data CH6 OUT + (A)

Audio/Data CH6 OUT - (B)

Audio/Data CH7 OUT + (A)

Audio/Data CH7 OUT - (B)

Audio/Data CH8 OUT + (A)

Audio/Data CH8 OUT - (B)

Bank

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

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.

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Front Panel Indicators

Power LED

Power...................................................Green

Off

Video Output LED’s

Video Present CH1-8...........................Green

Org

Off

-

unit powered no power applied to unit

-

-

video signal present on output BNC channel present but no video on O/P BNC no video channel present

Fibre Optic LED’s

Primary Opto Sync TX .........................Green

Off

Primary Opto Sync RX.........................Green

Org

Off

-

-

-

-

optical channel transmitting optical channel not transmitting optical channel receiving optical channel receiving but not sync.

optical channel not transmitting

Ethernet Data LED’s

BANK A

Data Present TX (Ethernet) .................Green

Off -

data present on the Ethernet input no data present on the Ethernet input

This represents the Ethernet signals being transmitted onto the optical fibre

Data Present RX (Ethernet).................Green

Off

-

data present on the Ethernet input no data present on the Ethernet input

This represents the Ethernet signals being received from the optical fibre

BANK B

Data Present TX .................................Green

Red

-

-

RJ45 Ethernet port operating at 100Mbit/s

RJ45 Ethernet port operating at 10Mbit/s

Data Present RX..................................Green

Off

-

-

RJ45 Ethernet port operating full duplex

RJ45 Ethernet port operating half duplex

Note: the RJ45 Ethernet auto-negotiates up to 50Mbit/s full duplex.

Low Speed Data LEDs

BANK A (When RS232 data daughter board fitted)

Data Present CH1-8 TX.......................Green

Red

Off

-

-

logic zero (+V) present on IN+ logic transitions present on IN+ logic one (-V) present on IN+

This represents the data signals being transmitted on the optical fibre

Data Present CH1-8 RX ......................Green

Red

Off -

-

logic zero (+V) present on OUT+ logic transitions present on OUT+ 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.

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

Data Present CH1-8 TX ...................... Green

Red

-

logic zero (+V, -V) present on IN+, INlogic 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

Red

Off

-

-

logic zero (+V, -V) present on OUT+, OUTlogic transitions present on OUT+, OUTlogic one (-V , +V) present on OUT+, OUT-

This represents the data signals being received on the optical fibre

BANK A (When audio daughter board fitted)

Audio Present TX ................................ Green

Red

Off

-

-

audio present > -40dBm audio present > 0dBm (overload at +6dBm) audio not present or < -40dBm

This represents the audio signals being transmitted on the optical fibre

Audio Present RX ................................ Green

Red

Off

-

-

audio present > -40dBm audio present > 0dBm (overload at +6dBm) 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.

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Ethernet Operation

In order for the AMG system to transmit Ethernet signals, an onboard RJ45 Ethernet interface or

X16003 Ethernet interface adaptor should be fitted to both the Transmit unit and the Receive unit.

The Ethernet interface can operate at either 10Mbits/s half duplex, or 100Mbit/s full duplex, and data is transmitted from one port the other port with the minimum of delay or buffering. The maximum bandwidth (at 100Mbit/s full duplex) available for transmission across the fibre link is nominally

50MBit/s.

The 100BaseT port does not implement MDI/MDIX; it should be connected with a straight though cable to an external switch port and with a cross over cable when connected directly to a PC or DTE.

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.

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Network Management

Network Management of the system is provided by the AMG Management Interface which allows

Management using the AMG SNMP enabled Management software.

NMS Operation

Requires Network Management "N" option in each Rx (Receive) or Tx (Transmit) unit.

Recommended for Dual Redundant Options to give knowledge of failure

Rx collects information regarding all attached Tx units

Interface

 9 Way D-type management port on each Rx or Tx

 RS-232 or RS-485 on Management Port

 Multiple Rx/Tx units use RS-485 and effectively parallel all the RS-485 ports together

 Connect to PC RS-232 Port via RS-485/RS-232 convertor

Proprietary GUI

 Loss of unit

 Loss of Optical Input

 Loss of Video Input

SNMP

SMNP Compatibility: SMNP Version 1

AMG3700 Device do NOT act as SNMP Agents

PC running AMG NMS software is the only 'true' SNMP Agent

 Provides Proxy access to all AMG devices

 SNMP Community String used to differentiate between AMG devices

Network Alarm Port

Alarm Output: Normally Closed

Opens when loss of :

 Video at any insert node

 Primary optical input at any node

 Secondary optical input at any node

 Any node through a power down

 Power at the receiver

Closed by: Reset

The Management Interface

The Management Interface is fitted to AMG receivers / transmitters and is signified by a 'N' in the part number

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.

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Each management interface, thus each receiver or transmitter, has an ID number with is identified below the management port. This ID number is used by the AMG Network Management System

(NMS) to identify the unit.

The physical interface is a 9 way female D-type connector. It supports either RS-232 or RS-485.

Management Port Pin-out:

Pin Number RS-232 Connection

1

2

-

RD (data out of port)

3

4

TD (data into port)

Connect to DTR held –ve or shorted to ground

7

8

5

6

9

SG (signal ground)

Alarm Output

Alarm Output

Alarm reset (Gnd)

Alarm reset

-

-

RS-485 Connection

Data B (+)

Data A (-)

SG (signal Ground)

Alarm Output

Alarm Output

Alarm reset (Gnd)

Alarm reset

For multiple Management Ports it is recommended that the RS-485 interface is used with each RS-

485 pair connected in parallel. In this case an RS-485 to RS-232 / USB converter is required in order to connect to a standard PC Comms. Port.

The time delay between receiving a data request and sending out a response from the port is 625µs.

Therefore any RS-485 converter should have a 'turn around' time or 'transmit dwell' time equal to or less than 625µs.

Recommended RS-485 Converter's are:

RS-485 to RS-232

Dataforth DCP485-S: Available in the UK from http://uk.farnell.com/ Order No. 300-9348

Settings on the DCP485-S:

 RS-485 Switch Settings: 1-UP, 2-DOWN, 3-DOWN, 4-UP, 5-DOWN, 6-DOWN, 7-DOWN,

8-UP

 RS-232 Switch Settings: 1-DOWN, 2-UP, 3-DOWN, 4-UP

 DCE/DTE set to DCE.

RS-485 to USB

B&B 485USBTB-2W: Available in Europe from http://www.bb-europe.com/ Order No. 485USBTB-2W

Connections to management port:

Management

Port

1

2

5

DCP485-S

2 or 4

3 or 5

GND

485USBTB-2W

B+

A-

GND

NOTES:

On the DCP485-S, pins 3 and 5 are connected together and pins 2 and 4 are connected together.

On the 485USBTB-2W, there are 2 pairs of terminals both labeled A-, B+, either pair may be used.

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.

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Alarm Output and Reset Operation

The alarm output and reset is designed to indicate a change of state of the fibre loop or spur attached to the receiver. The Alarm output is a volts free contact relay output (rating: 0.5A at 125VAC or 1A at

24VDC). It normally open, which means that when not powered the contacts will be open circuit.

On power up the contacts will close and will remain closed for up to 5 seconds. During this time the receiver will monitor and record the state of the AMG transmit units connected to the receiver.

The contacts will then remain closed until there is a change from this recorded state. A change of state would be:

 Addition or loss of video at any insert node

 Addition or loss of primary optical input at any node

 Addition or loss of secondary optical input at any node

 Power up or down of any node

 Loss of power at the receiver

Following a change of state the contacts will remain open, regardless of whether the alarm condition reverts back to its previous state, until the a reset signal is presented to the alarm input connections.

The alarm reset input is biased at 5V via a 1k Ω resistor. To reset the alarm, the alarm reset is required to be pulled to ground, either by a volt-free contact or an open collector output. The alarm output will be held in a closed state whilst the alarm reset is connected to ground.

On release of the alarm reset, the alarm output will remain in a closed state until the next change of state to the AMG transmit unit connected to the receiver. The alarm output may not register a change of state which happens within 5 seconds of release of the alarm reset.

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.

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Physical Information

Dimensions

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

Width....................................................21HP

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

Weight..................................................1000grams

Mounting Details

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

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

Technical Support

Email

+44 (0) 1767 600 777

+44 (0) 1767 604 491 [email protected]

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.

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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.

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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.

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