AMG Systems AMG3782EG-DR User manual
AMG Systems Ltd. reserves the right to make change
s 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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1
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8
AMG3782EG
-
DR
Instruction
Sheet
D16844
-
02.doc
AMG3782EG
-
DR
Instruction Manual
8 Channel Video Receive Unit with Ethernet for a Dual
Redundant Fibre Ring
The
AMG3782EG
-
DR
is a rackmount eight channel video receive unit designed to receive 8 video
signals from a dual singlemode optical fibr
e ring with Dual Redundant operation. It also provides full
duplex 100BaseT Ethernet connectivity around the ring.
The
AMG3782EG
-
DR
is designed to be powered using an
AMG2003
standalone power supply.
The
AMG3782EG
-
DR
is designed to operate with
AMG3741E
-
DR
or rackmount equivalent
AMG3741EG
-
DR
four channel video and Ethernet insert units. It may also be used with other
combinations of single, dual and four channel video and Ethernet insert units.
An
AMG3782EG
-
DR
receive unit will 'drop off' up to eight v
ideo channels which are being transmitted
around the fibre ring from up to eight single channel insert units, or from an equivalent combination of
multi
-
channel insert units.
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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of
8
AMG3782EG
-
DR
Instruction
Sheet
D16844
-
02.doc
Contents
Introduction
3
Unit Fu
nctional Schematic
................................
................................
................................
..................
3
Video Input Channel Configuration
................................
................................
................................
....
3
Optical Connection
................................
................................
................................
.............................
3
Connections
5
Video Output Connections
................................
................................
................................
..................
5
Optical Connections
................................
................................
................................
...........................
5
Power Connection
................................
................................
................................
..............................
5
Ethernet Connection
................................
................................
................................
...........................
5
Front Panel Indicators
6
Power LED
................................
................................
................................
................................
..........
6
Video Output LED’s
................................
................................
................................
............................
6
Fibre Optic LED’s
................................
................................
................................
...............................
6
Ethernet Data LED’s
................................
................................
................................
...........................
6
Ethernet Operation
7
Physical Information
8
Dimensions
................................
................................
................................
................................
.........
8
Mounting Details
................................
................................
................................
................................
.
8
Removal / replacement from / to the Case
................................
................................
.........................
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
AMG3782EG
-
DR
Instruction
Sheet
D16844
-
02.doc
Introduction
Unit Functional Schematic
The
AMG3782EG
-
DR
transmits
and receives optical signals from
both a primary and secondary
optical channel. The primary and
secondary channels operate at
the same wavelength (1310nm)
and are transmitted
on separate
optical fibres.
The
AMG3782EG
-
DR
drops off
up to 8 video signals and Ethernet
signals transmitted from the
AMG3741E
-
DR
insert units. It
also transmits the Ethernet
signals back to the insert units.
As each unit regenerates the optical sign
al, the optical dynamic range between each optically
connected node is 17dB.
Video Input Channel Configuration
At the
AMG3741E
-
DR
or rackmount
AMG3741EG
-
DR
insert unit, video signals present at the BNC
inputs can be inserted on one to eight video channel
s transmitted on the optical fibre. The first video
channel number of each insert unit is set by the rotary switch on the front panel of the unit.
It is normal to set each insert unit to a different channel number. If the same number is used twice, an
ins
ert unit connected 'down stream' on the primary optical route will 'over
-
write' any coincident video
channels coming from the previous insert unit and those video signals will be lost.
The switch channel numbers 1 to 8, correspond to video channels 1
-
8. U
nused switch channel
numbers 0 & 9 duplicate video channel selections 1 & 8 respectively. i.e. setting switch to position 0 or
1 selects video channel 1 and setting switch to position 8 or 9 selects channel 8.
Optical Connection
The
AMG3782E
-
DR
or rackm
ount
AMG3782EG
-
DR
is designed to be connected in a ring or point to
point system.
In a ring system, single, dual and four channel insert units respectively can be combined to make up
an 8 channel video transmission system as illustrated below.
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
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AMG3782EG
-
DR
Instruction
Sheet
D16844
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02.doc
If a
fibre link is broken, operation of the ring continues by making use of the secondary optical fibre
route as below:
If multiple breaks occur, operation is maintained with all the units still physically connected to the
receiver. For the scenario shown b
elow camera signals and control would now be lost from cameras 1,
2 and 3 as there is now no physical connection between the transceivers and the receiver. However
operation of cameras 4,5,6,7 and 8 remains fully functional.
AMG Systems Ltd. reserves the right to make change
s to this
document without notice. The information herein is believed to
be accurate. No responsibility is assumed by AMG for its use.
Page
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-
DR
Instruction
Sheet
D16844
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Connections
Video Output Co
nnections
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 OUT
Connector
................................
............
LC/PC
Primary Optical Launch Power
............
-
5dBm
Wavelen
gth
................................
..........
1310nm
Optical Fibre
................................
........
Singlemode
PRIMARY OPTO IN
Connector
................................
............
LC/PC
Primary Optical Sensitivity
...................
-
22dBm
Wavelength
................................
..........
1310nm
Optical Fibre
................................
........
Singlemode
SECONDARY OPTO OUT
Connector
................................
............
LC/PC
Secondary Optical Launch Power
.......
-
5dBm
Wavelength
................................
..........
1310nm
Optical Fibre
................................
........
Sing
lemode
SECONDARY OPTO IN
Connector
................................
............
LC/PC
Secondary Optical Sensitivity
..............
-
22dBm
Wavelength
................................
..........
1310nm
Optical Fibre
................................
........
Singlemode
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
................................
.
10 Watts
Ethernet Connection
Ethernet Data Connector
....................
RJ45
Interface
................................
...............
Auto
-
negotiation up to 100BASE
-
TX full duplex
Ethernet Data Rate
..............................
Maximum 100Mb/s total Ethernet traffic on 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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AMG3782EG
-
DR
Instruction
Sheet
D16844
-
02.doc
Front Panel I
ndicators
Power LED
Power
................................
...................
Green
-
unit powered
Off
-
no power applied to unit
Video Output LED’s
Video Present CH1
-
8
...........................
Green
-
video signal present on output BNC
Org
-
channel present but no video on O/P BNC
Off
-
no video channel present
Fibre Opti
c 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 receiving
Seco
ndary Opto Sync TX
....................
Green
-
optical channel transmitting
Off
-
optical channel not transmitting
Secondary Opto Sync RX
....................
Green
-
optical channel receiving
Org
-
optical channel receiving but not sync.
Off
-
optical channel not receiving
Ethernet Dat
a 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
-
da
ta present on the Ethernet input
Off
-
no data present on the Ethernet input
This represents the Ethernet signals being received from the optical fibre
BANK B
Data Present TX
................................
.
Green
-
RJ45 Ethernet port operating at 100Mbit/s
Red
-
RJ45 Ethernet
port operating at 10Mbit/s
Data Present RX
................................
..
Green
-
RJ45 Ethernet port operating full duplex
Off
-
RJ45 Ethernet port operating half duplex
Note: the RJ45 Ethernet auto
-
negotiates up to 100Mbit/s full duplex.
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
AMG
3782EG
-
DR
Instruction
Sheet
D16844
-
02.doc
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 all units in the ring.
The Ethernet interface can operate at either 10Mbits/s half duplex, or 100Mbit/s full duplex. 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 nominal band
width available for Ethernet transmission within the
ring is 100Mbit/s when Ethernet only, or 50MBit/s when the low speed data option is also used. If one
node is transmitting, the entire bandwidth is available for this traffic. If multiple nodes transmit
simultaneously on the ring, then the bandwidth is shared 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 i
s 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 E
thernet port is operating at 10Mbits/s half
duplex, this port will now only receive data from a receive 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 st
raight 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.
Page
8
of
8
AMG3782EG
-
DR
Instruction
Sheet
D16844
-
02.doc
Physical Information
Dimensions
Height
................................
...................
3U Plug
-
in
Width
................................
....................
14HP
Depth
................................
...................
170mm excluding connectors
Weight
................................
..................
1000grams
Mounting Details
The uni
t 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) proc
edures. 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 o
ut 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 O
ptical 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 collimati
ng 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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