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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.

Page 10 of 12

AMG3788ERN-DR-1550-HP
Instruction Sheet D16678-00

Ethernet Operation

In order for the 3700 unit to transmit Ethernet signals, the X16003 Ethernet interface should be fitted to all
units in the ring. This is supplied as standard in the

AMG3785, AMG3786

and

AMG3787

type units.

When all the Ethernet interfaces around the ring are operating at 100Mbit/s full duplex the system behaves
as a multi-port repeater. Data transmitted on any one port is transmitted out on all other ports with the
minimum of delay or buffering. The bandwidth available for transmission within the ring is nominally
100MBit/s. If one node is transmitting, all this bandwidth is available for this traffic. If multiple nodes transmit
simultaneously on the ring, then the bandwidth shares between each node as required. With similar traffic at
each node the sharing would be nominally equal. Although the limit for the number of video channels which
can be transmitted around the ring is eight, up to 64 nodes can be attached for distributing Ethernet signals
with the bandwidth sharing implemented. The units use Flow Control (Pause Frames) to limit the access to
the ring to share the bandwidth and to ensure that no data is lost.

When an Ethernet port is operating at 10Mbits/s half duplex, this port will now only receive data from a 3700
receiver unit rather than all ports as when operating at 100Mbits/s full duplex.

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

Physical Information

Dimensions

Height .................................................. 3U Plug-in
Width.................................................... 21HP
Depth ................................................... 172mm excluding connectors
Weight.................................................. 1200grams

Mounting Details

The unit is designed to be mounted within an

AMG2005

Subrack on standard card guides. Note the

AMG2005

Subrack is supplied with guide rails every 14HP. In order to fit this unit in the subrack it may be

necessary to move some card guides by pulling gently on the card guides .

Removal/replacement from/to the Case

Note:

The 3700 series PCB’s are static sensitive. Handle with proper care and use normal electrostatic

discharge (ESD) procedures. Use properly grounded protection (for example, wrist stamps) when handling
the PCB.

To remove units from the case to access the data expansion board 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 fibres do not snag or get trapped.

The Management Interface

The AMG3700 Management Interface is fitted within AMG3784RN, AMG3786RN and AMG3788RN
receivers and is signified by a ‘N’ in the part number

Each management interface, thus each receiver, 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.

Summary of Contents for AMG3787E-1-DR-1550-HP

Page 1: ...into an AMG2000 or an AMG2005 subrack which in turn fits into a 19 rack system It also includes an AMG Network Management Interface to allow management of the system using the AMG SNMP enabled management software The AMG3788ERN DR 1550 HP is designed to operate with the AMG3787E 1 DR 1550 HP AMG3787E 2 DR 1550 HP AMG3787E 4 DR 1550 HP and AMG3787E 8 DR 1550 HP single channel dual channel four chan...

Page 2: ...tions 4 Power Connections 5 Ethernet Connections 5 Data Connections 5 Management Port Connections 5 Data and Audio Channel Configuration 6 Data and Audio Daughter Board Fitting Instructions 6 Data and Audio Connections 7 Front panel Indicators 8 Power LED 8 Fibre Optic LED s 8 Video LED s 8 Ethernet Data LED s 8 Data Connections 8 Ethernet Operation 10 Physical Information 10 Dimensions 10 Mountin...

Page 3: ...E 1 DR 1550 HP AMG3787E 2 DR 1550 HP and AMG3787E 4 DR 1550 HP single dual and four channel insert units respectively can be combined to make up an 8 channel video transmission system as illustrated below with an AMG3788ERN DR 1550 HP receiver As each unit regenerates the optical signal the optical dynamic range between each optically connected node is 22dB 3788ERN DR 1550 HP 3700 optics Primary 1...

Page 4: ...VIDEO INSERT BI DIRECTIONAL DATA TX O O R X OPTOSYNC FRONT PANEL INDIC ATORS VIDEO PRESENT CH1 O O CH2 CH3 O O CH4 POWER O GND 12 16 Volts dc OPTO IN VIDEO CH1 VIDEO CH 2 VIDEO CH3 VIDEO CH 4 OPTO OUT GND OUT OUT IN IN DATA CONNECTIONS INTE RNAL RS422 485 S W ITCHABLE TX O O R X DATA PRESENT 1 3 8 2 1 6 8 3 2 4 7 5 Primary Optical Route Secondary Optical Route OPTO PRESENT PRIMARY SECONDARY VIDEO ...

Page 5: ...power level 5dBm of the AMG3787E 1 DR 1550 HP and AMG3788ERN DR 1550 HP is higher than the maximum optical input power level 0dBm there should always be at least 5dB of optical attenuation between two units in order to prevent an overload of the optical inputs Power Connection Power supply from plug in connection on the 2000 or 2005 subrack Power consumption 15 Watts max Ethernet Connections No of...

Page 6: ...d be fitted in the appropriate data channel slots on the data expansion boards Each data interface board enables one bi directional channel The data interface daughter board options are as follows Option Code Part No Description 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 X04059 TTL Data In...

Page 7: ...N A B 16 AUDIO DATA CH7 IN A B 17 AUDIO DATA CH7 IN A B 18 AUDIO DATA CH8 IN A B 19 AUDIO DATA CH8 IN A B Pin No Description Bank 20 AUDIO DATA CH1 OUT A B 21 AUDIO DATA CH1 OUT A B 22 AUDIO DATA CH2 OUT A B 23 AUDIO DATA CH2 OUT A B 24 AUDIO DATA CH3 OUT A B 25 AUDIO DATA CH3 OUT A B 26 AUDIO DATA CH4 OUT A B 27 AUDIO DATA CH4 OUT A B 28 GND 29 GND 30 AUDIO DATA CH5 OUT A B 31 AUDIO DATA CH5 OUT ...

Page 8: ...deo signal present on output BNC Red Green channel present but no video present on output BNC Off no video channel present Ethernet Data LED s BANK A Data Present TX Ethernet Green data present on the Ethernet input Off no data present on the Ethernet input This represents the Ethernet signals being transmitted onto the optical fibre Data Present RX Ethernet Green data present on the Ethernet inpu...

Page 9: ...input 600ohm This represents the audio signals being transmitted on the optical fibre BANK B When data daughter board fitted Data Present CH1 8 TX Green logic one present on the data input Red logic zero present on the data input Off tri state off or no connection on the data input This represents the data signals being transmitted on the optical fibre Data Present CH1 8 RX Green logic one present...

Page 10: ...it rather than all ports as when operating at 100Mbits s full duplex 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 Physical Information Dimensions Height 3U Plug in Width 21HP Depth 172mm excluding connectors Weight 1200grams Mounting Details The unit is...

Page 11: ...aforth DCP485 S Available in the UK Farnell Pt No 300 9348 On DCP485 S RS485 Switch Settings 1 UP 2 DOWN 3 DOWN 4 UP 5 DOWN 6 DOWN 7 DOWN 8 UP RS232 Switch Settings 1 DOWN 2 UP 3 DOWN 4 UP DCE DTE set to DCE Connections to management port DCP485 S Management Port 1 N C 2 1 3 2 4 1 5 2 NOTE on the DCP485 S pin 5 and pin 3 are connected together and pin4 and pin 2 connected together Alarm Output and...

Page 12: ...osed state until the next change of state to the 3700 system 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 Safety The 3700 series of products uses a Class 1 laser system in accordance with EN 60825 2 2000 It is always advisable to follow good practice when working with optical fibre systems This includes D...

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