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 1of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
AMG2783A-1-DR-CWDMnm-SF
Instruction Manual
Single Channel Video Insert Unit with Bi-directional Data
Dual Redundant on a single fibre ring
AMG2783A-1-DR-CWDMnm-SF is a single channel video insert unit designed to transmit a video
signal on to a single dual redundant optical fibre ring. It also provides a RS485/RS422 bi-directional
data channel. It is designed to plug into non-standard rackmount housing where power is supplied to
the rear of the unit to two power supply sockets. Up to 32 units can be attached to the same single
fibre optic ring to transmit up to 32 real time high quality video signals.
The AMG2783A-1-DR-CWDMnm-SF is designed to operate with the AMG2784-DR-CWDMnm-SF
eight channel video and data receiver. Each receiver will ‘drop off’ up to eight video channels which
are being transmitted around the single fibre ring on the corresponding CWDM wavelengths. Up to 4
receivers operating in different wavelength bands give a capacity of up to 32 video signals on the
same single fibre ring.
Index Page No.
Introduction.......................................................................................................... 2
Unit Functional Schematic................................................................. 2
Optical System Connection............................................................... 2
Dual Redundant Operation................................................................ 2
Calculation of maximum transmission distances between nodes..... 3
Connections ......................................................................................................... 6
Video Input connection...................................................................... 6
Optical Connections.......................................................................... 6
Power Connections ........................................................................... 6
Data Connections.............................................................................. 7
Indicators ........................................................................................................... 7
Physical Information ........................................................................................... 7
Dimensions........................................................................................ 7
Mounting Details................................................................................ 8
Configuration of the RS422/RS485 Data Channel ............................................ 8
Video Input Channel Configuration ................................................................... 8
SW1 Switch Settings ........................................................................................... 9
Removal from the Case....................................................................................... 9
Safety ........................................................................................................... 10
V
I
D
E
O
OPTO IN
D
A
T
A
CH 5
CH 6
CH 7
CH 8 CH 4
CH 3
CH 2
CH 1
OPTO OUT
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARY OPTO SYNC
TX O O RX SECONDARY OPTO SYNC
TX O O RX
VIDEO PRESENT
CH1 OORX
CH1
O
O
RX
DATA PRESENT
-------------------------
1 CH VIDEO INSERT
+
DATA TX/RX
POWER
O
POWER
O
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 2of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
Introduction
Unit Functional Schematic
The unit transmits optically on two CWDM (Coarse
Wavelength Division Multiplexing) wavelengths,
transmitting in opposite directions onto a singe optical fibre.
The primary optical channel (transmission wavelength
indicated by n) transmits in the clockwise direction and
the secondary channel (transmission wavelength indicated
by m) transmits in the anti-clockwise direction. Thus a
CWDM1, 2 unit would have a primary optical channel on
CWDM wavelength 1 (1) and a secondary channel on
CWDM wavelength 2 (2).
Optical System Connection
The units are designed to be connected in a ring. Up to 32 video channels can be connected on the
same dual redundant ring comprising of 8off CWDM1, 2, 8off CWDM3, 4, 8off CWDM5, 6 and 8off
CWDM7, 8. Each wavelength pair equipment is set, although using the same fibre operates
independently from the other wavelength pair equipment sets. The schematic below illustrates a single
wavelength equipment set.
Dual Redundant Operation
The primary optical channel, normally transmitting optical signals clockwise around the ring, carries
the video and data signals during normal no break operation. The secondary optical channel is not
used to carry active signals in this normal operating situation but only serves to repeat (regenerate
and re-time) any optical signal received at each node.
In the event of a fibre break, the units either side of that break detect what has happened. The
example shown in the schematic below shows a break between cameras 1 and 2. The video and data
signals that would normally be transmitted directly from unit 2 to unit 1 on the primary optical channel
will now be routed in the opposite direction from unit 2 to unit 1 on the secondary channel via each of
the other nodes in the ring. The signal being regenerated at each node it passes through.
In the case of multiple fibre breaks the receiver will still drop off all video signals from, and transmit
data to, nodes that are not isolated by the multiple breaks.
1
2
3
8
1
3
8
2
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX OO RX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CHVIDEO INSERT+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TXOORX SECONDARYOPTO SYNC
TXOORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CHVIDEO INSERT+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TXO ORX SECONDARYO PTO SYNC
TXO ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------1 CHVIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX OO RX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------1 CHVIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2784-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TXO ORX SECONDARY OPTO SYNC
TXO ORX
VIDEOPRESENT
CH1 O OCH2
CH3 O OCH4
CH1 OO RX
DATA PRESENT
-------------------------8CH VI DEORX
+
DATA TX/RX
POWER
O
POWER
O
VIDEOPRESENT
CH5 O OCH6
CH7 O OCH8
1
2
3
8
1
3
8
2
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TXO ORX SECONDARYO PTO SYNC
TXO ORX
VIDEOPRESENT
CH1 OORX
CH1 OORX
DATA PRESENT
-------------------------1 CHVIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX O ORX SECONDARYO PTO SYNC
TX O ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------1 CHVIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TXOORX SECONDARYOPTO SYNC
TXOORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------1 CHVIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX O ORX SECONDARYO PTO SYNC
TXO ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------1 CHVIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2784-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TX O ORX SECONDARY OPTO SYNC
TX OO RX
VIDEOPRESENT
CH1 O OCH2
CH3 O OCH4
CH1 O ORX
DATAPRESENT
-------------------------
8CH VI DEORX
+
DATA TX/RX
POWER
OPOWER
O
VIDEOPRESENT
CH5 OO CH6
CH7 OO CH8
2783A-1--DR-CWDMn,m-SF
2700 optics (Primary)
TX
RX
2700 optics
(Secondary) RXTX
Primary and Secondary
Route on the Same Fibre
n
mm
n
1 to 8 without
n and m
1 Video Input
1 Data I/O
4dB Max Through Loss
1 to 8
OPTO OUTOPTO IN
Primary Signal Direction
Secondary Signal Direction
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 3of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
Calculation of maximum transmission distances between nodes
The maximum transmission distance between equipment nodes will depend on two factors,
(i) the transmission loss between equipment nodes
(ii) the optical dynamic range of the equipment
The transmission loss between nodes should include:
-fibre transmission loss (dB/km)
-jointing splice loss (number of splices/km X max splice loss) (dB/km)
-connector loss associated with any patching (dB)
-excess loss or spare margin allowance (dB)
-maintenance margin allowance to account for future cable repairs (dB)
As these parameters are site specific all calculations in this section relate to the optical dynamic range
between nodes in dB rather than distance in kilometres as distance can only be calculated if the all the
parameters above are known.
The optical minimum dynamic range of the equipment is 20dB. This relates to two units which are
optically adjacent (this may be different to physically adjacent) which are operating on the same
wavelength pair.
See below for a simple 8 channel ring.
If more than 8 video signals are incorporated on the same fibre and multiple wavelengths are used,
the calculation is still based on 20dB between nodes of the same wavelength. However as optical
signals pass through nodes not of the same wavelengths then they are not regenerated and suffer up
to a 4 dB loss.
5
6
7
8
4
3
2
1
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TXO ORX
SECONDARYOPTO SYNC
TXO ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX O ORX
SECONDARYOPTO SYNC
TX O ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX O ORX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TXO ORX SECONDARYO PTO SYNC
TXO ORX
VIDEOPRESENT
CH1 OORX
CH1 OORX
DATA PRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX OO RX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX O ORX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX OO RX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPT O SYNC
TX OO RX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------1 CHVIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
1
3
2
2784-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TXOORX SECONDARYOPTO SYNC
TXOORX
VIDEOPRESENT
CH1 OO CH2
CH 3 OO CH4
CH1 O ORX
DATAPRESENT
-------------------------
8CH VI DEORX
+
DATA TX/RX
POWER
OPOWER
O
VIDEOPRESENT
CH5 OO CH6
CH 7 OO CH8
8
20dB
Loss between nodes of the same wavelength 20dB
20dB
20dB20dB 20dB20dB
All nodes on the same wavelengths
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 4of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
16 camera ring.
24 camera ring.
12 13 14 15
3 2 1
1 53
TX
O
15
2 4 6 16
45
16
3,4
Unit
1,2
Unit
1,2
Unit
3,4
Unit
3,4
Unit
1,2
Unit
3,4
Unit 1,2
Unit
3,4
Unit 1,2
Unit
20dB
Loss between nodes of the same wavelength
ave. 8dB 4dB ave. 8dB 4dB ave. 8dB 4dB ave. 8dB 4dB
20dB
Loss between nodes of the same wavelength
ave. 8dB 4dB ave. 8dB 4dB ave. 8dB 4dB ave. 8dB 4dB
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SY NC
TX O ORX SECONDARY OPTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARYOPT O SYNC
TXOORX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRE SENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1CH VIDE O INSERT
+
DATA TX/RX
POWER
OPOWER
O
2784-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TX O ORX S ECONDARYOPTO SYNC
TX O ORX
VIDEO PRESENT
CH1 O OCH2
CH3 O OCH4
CH1
O
O
RX
DATAPRESENT
-------------------------
8 CH VIDEO RX
+
DATA TX/RX
POWER
OPOWER
O
VIDEO PRESENT
CH5 O OCH6
CH7 O OCH8
2784-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTOSYNC
TXOORX SECONDARY OPTO SYNC
TXOORX
VIDEOPRESENT
CH1OOCH2
CH3OOCH4
CH1 OO RX
DATAPRESENT
-------------------------
8 CH VIDEORX
+
DATATX/RX
POWER
OPOWER
O
VIDEOPRESENT
CH5OOCH6
CH7OOCH8
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TX O ORX SECONDAR YOPTO S YNC
TX O ORX
VIDEO PRESENT
CH1 OORX
CH1 O ORX
DATAP RESENT
-------------------------
1 CH VIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TXO ORX SECONDARY OPTO SYNC
TXO ORX
VIDEOPRESENT
CH1 OORX
CH1 OO RX
DATAP RESENT
-------------------------
1CH VI DEOINS ERT
+
DATAT X/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TXOORX SECONDARYOPTO SYNC
TXO ORX
VIDEO PRESENT
CH1 OORX
CH1 O ORX
DATAP RESENT
-------------------------
1 CH VIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTO SYNC
TXO ORX
SECONDARYOPTO S YNC
TXO ORX
VIDEO PRESENT
CH1 OORX
CH1
O
O
RX
DATAPRE SENT
-------------------------
1 CH VIDEO INSERT
+
DATA TX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TX OO RX SECONDARY OPTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORXDATAPRESENT
-------------------------
1CH VI DEOINS ERT
+
DATA TX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTO SYNC
TXO ORX SECONDARY OPTO SYNC
TXOORX
VIDEO PRESENT
CH1 OORX
CH1 OO RX
DATAPRESENT-------------------------
1 CH VIDEO INSERT
+
DATAT X/RX
POWER
O
POWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARYOPTO SYNC
TX O ORX SECONDARY OPT O SYNC
TX O ORX
VIDEOPRESENT
CH1 OORX
CH1
O
O
RX
DATA PRESENT
-------------------------
1 CH VIDEO INSERT
+
DATA TX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTO SYNC
TXOORX SECONDARYOPTO SYNC
TX OO RX
VIDEO PRESENT
CH1 OORX
CH1
O
O
RX
DATAPRE SENT
-------------------------
1 CH VIDEO INSERT
+DATA TX/RX
POWER
O
POWER
O
20 21 22 23
3 2 1
1 74
TX
O
22
3 6 9 24
45
24
5,6
Unit
3,4
Unit
5,6
Unit
1,2
Unit
3,4
Unit
3,4
Unit
1,2
Unit 5,6
Unit
3,4
Unit 1,2
Unit
20dB
Loss between nodes of the same wavelength
ave. 4dB 4dB ave. 4dB 4dB ave. 4dB 4dB ave. 4dB 4dB
20dB
Loss between nodes of the same wavelength
ave. 4dB 4dB ave. 4dB 4dB ave. 4dB 4dB ave. 4dB 4dB
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TX OO RX SECONDARY OPTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAP RESENT
-------------------------
1CH VI DEOINS ERT
+
DATA TX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTO SYNC
TX OO RX SECONDARY OPTO SYNC
TX O ORX
VIDEO PRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CH VIDEO INSERT
+
DATAT X/RX
POWER
OPOWER
O
2783A-1-DR-CWDM5/6-SF
AMG
PRIMARYOPTO SYNC
TXOORX SECONDARYOPTO SYNC
TX OO RX
VIDEOP RESENT
CH1 OORX
CH1
O
O
RX
DATAPRESENT
-------------------------
1CH V IDEOI NSERT
+
DATA TX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SY NC
TX O ORX SECONDARY OPTO SYNC
TX O ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1 CHVIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARYOPT O SYNC
TXOORX SECONDARYO PTO SYNC
TX OO RX
VIDEOPRE SENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1CH VIDE O INSERT
+
DATA TX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM5/6-SF
AMG
PRIMARYOPTO SYNC
TXO ORX
SECONDARY OPTOSYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1CH VIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2784-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TX O ORX
SECONDARYOPTO SYNC
TX O ORX
VIDEO PRESENT
CH1 O OCH2
CH3 O OCH4
CH1
O
O
RX
DATAPRESENT
-------------------------
8 CH VIDEO RX
+
DATA TX/RX
POWER
OPOWER
O
VIDEO PRESENT
CH5 O OCH6
CH7 O OCH8
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TX OO RX SECONDARY OPTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAP RESENT
-------------------------
1CH VI DEOINS ERT
+
DATA TX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM5/6-SF
AMG
PRIMARYOPTO SYNC
TX OO RX
SECONDARY OPTOSYNC
TX O ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1CH VIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTO SYNC
TX O ORX SECONDARY OPTO SYNC
TX O ORX
VIDEO PRESENT
CH1 OORX
CH1
O
O
RX
DATAPRESENT
-------------------------
1 CH VIDEO INSERT+
DATAT X/RX
POWER
O
POWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTO SYNC
TXOORX SECONDARYOPTO SYNC
TX OO RX
VIDEO PRESENT
CH1 OORX
CH1
O
O
RX
DATAPRE SENT
-------------------------
1 CH VIDEO INSERT
+
DATA TX/RX
POWER
O
POWER
O
2784-1-DR-CWDM5/6-SF
AMG
PRIMARY OPTOSYNC
TXOORX SECONDARY OPTO SYNC
TXOORX
VIDEOPRESENT
CH1OOCH2
CH3OOCH4
CH1 OO RX
DATAPRESENT
-------------------------
8 CH VIDEORX
+
DATATX/RX
POWER
OPOWER
O
VIDEOPRESENT
CH5OOCH6
CH7OOCH8
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 5of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
32 camera ring.
Note that where necessary repeaters can be added at nodes to increase the average distance
between nodes.
Connections
Video Input Connection
Connector ...........................................75 ohm BNC Socket.
Input Impedance..................................75 ohm terminated.
Input Level ...........................................1 volt p-p nominal
Frequency Response ..........................10Hz to 5.75MHz min.
See below for video input channel configuration
Optical Connections
OPTO OUT
Connector............................................FC/PC
Primary Channel Launch Power..........-2dBm
Primary Channel Wavelength..............n = 1 1510nm
n = 3 1550nm
n = 5 1470nm
n = 7 1590nm
Secondary Channel Sensitivity............-22dBm
Secondary Channel Wavelength.........n = 2 1530nm
n = 4 1570nm
n = 6 1490nm
n = 8 1610nm
Optical Through Loss ..........................4dB
for unused wavelengths
OPTO IN
Connector............................................FC/PC
Secondary Channel Launch Power.....-2dBm
Secondary Channel Wavelength.........n = 2 1530nm
n = 4 1570nm
28 29 30 31
3 2 1
1 95
TX
O
29
20dB
Loss between nodes of the same wavelength
4 8 12 32
45
32
7,8
Unit
5,6
Unit
1,2
Unit
3,4
Unit
7,8
Unit
1,2
Unit
7,8
Unit
5,6
Unit
3,4
Unit
1,2
Unit
ave. 2dB 4dB ave. 2dB 4dB ave. 2dB 4dB ave. 2dB 4dB
ave. 2dB 4dB ave. 2dB 4dB ave. 2dB 4dB ave. 2dB 4dB
20dB
Loss between nodes of the same wavelength
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TXO ORX SECONDARY OPTO SYNC
TX O ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATAP RESENT
-------------------------
1CH VI DEOINS ERT
+
DATA TX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTO SYNC
TX O ORX SECONDARY OPTO SYNC
TX O ORX
VIDEO PRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CH VIDEO INSERT
+
DATAT X/RX
POWER
OPOWER
O
2783A-1-DR-CWDM5/6-SF
AMG
PRIMARYOPTO SYNC
TX OO RX SECONDARYO PTOSYNC
TX O ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1CH VIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM7/8-SF
AMG
PRIMARYOPT O SYNC
TX OO RX
SECONDARYOPTO SYNC
TX OO RX
VIDEOPRE SENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CH VIDEO INSERT
+
DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM7/8-SF
AMG
PRIMARYOPTO SYNC
TXOORX
SECONDARYOPTO S YNC
TXOORX
VIDEOPRESENT
CH1 OORX
CH1
O
O
RX
DATA PRESENT
-------------------------
1CH VIDEO INSERT
+DATA TX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM7/8-SF
AMG
PRIMARY OPTO SYNC
TX OO RX S ECONDARY OPTO SYNC
TX OO RX
VIDEO PRESENT
CH1 OORX
CH1 O ORX
DATAPRESENT
-------------------------
1 CH VIDEO INSERT
+
DATA TX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TXO ORX SECONDARY OPTO SYNC
TXO ORX
VIDEOPRESENT
CH1 OORX
CH1 OO RX
DATAP RESENT
-------------------------
1 CH VIDEO INSERT
+
DATATX/RX
POWER
OPOWER
O
2783A-1-DR-CWDM1/2-SF
AMG
PRIMARYOPTO SYNC
TX O ORX
SECONDARYO PTO SYNC
TX OO RX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1 CHVI DEOINS ERT
+DATATX/RX
POWER
O
POWER
O
2783A-1-DR-CWDM3/4-SF
AMG
PRIMARY OPTO SYNC
TXO ORX
SECONDARYO PTOSYNC
TXO ORX
VIDEO PRESENT
CH1 OORX
CH1 OORX
DATAPRESENT
-------------------------
1 CH VIDEO INSERT
+
DATAT X/RX
POWER
OPOWER
O
2783A-1-DR-CWDM5/6-SF
AMG
PRIMARYO PTO SYNC
TX O ORX SECONDARY O PTO SYNC
TX O ORX
VIDEOPRESENT
CH1 OORX
CH1 O ORX
DATA PRESENT
-------------------------
1CH VIDE O INSERT
+
DATA TX/RX
POWER
O
POWER
O
2784-1-DR-CWDM1/2-SF
AMG
PRIMARY OPTO SYNC
TXOORX SECONDARYOPTO SYNC
TX OO RX
VIDEO PRESENT
CH1 OOCH2
CH3 OOCH4
CH1
O
O
RX
DATAPRESENT
-------------------------8 CH VIDEO RX
+
DATAT X/RX
POWER
O
POWER
O
VIDEO PRESENT
CH5 OO CH6
CH7 OO CH8
2784-1-DR-CWDM7/8-SF
AMG
PRIMARYO PTO SYNC
TXO ORX SECONDARY OPTO SYNC
TX O ORX
VIDEOPRE SENT
CH1 O OCH2
CH3 O OCH4
CH1
O
O
RX
DATAPRESENT
-------------------------
8 CH VIDEORX
+
DATATX/RX
POWER
O
POWER
O
VIDEOPRE SENT
CH5 O OCH6
CH7 O OCH8
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 6of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
n = 6 1490nm
n = 8 1610nm
Primary Channel Sensitivity.................-22dBm
Primary Channel Wavelength..............n = 1 1510nm
n = 3 1550nm
n = 5 1470nm
n = 7 1590nm
Optical Through Loss ..........................4dB
for unused wavelengths
Power Connection
Connector............................................2off removable screw terminal connector (3.5mm spacing)
Manufacturers Part No. Phoenix/Combicom MC1-5/2-ST-3.5
AMG Part No.G00047-00
Power requirement ..............................12 volt to 16 volt DC @ 800mA combined current for both
connectors
Connections.........................................See schematic
+12 – 16 Volts on lower pin
0 Volts on upper pin
Data Connections
Data Connector ...................................5 way removable spring
terminal connector (2.5mm
spacing)
Manufacturers Part No. Phoenix/Combicom FK-MC-0.5/5-ST-
2.5
AMG Part No G15098-00
Connections RS422 4 wire..................See schematic
Connections RS485 4 wire..................See schematic
Protocol................................................RS485 2wire (switch
selectable SW2)
RS422 4 wire Bus’ed or point to point (switch selectable SW1)
See below for Configuration of the RS485 / RS422 data channel and description of tristate
operation
OPTO IN D
A
T
A
CH 8 CH 4
OPTO IN 0 Volts
+12 – 16 Volts
0 Volts
+12 – 16 Volts
OPTO IN
D
A
T
A
CH 8 CH 4
OPTO IN Pin 5 – Ground
Pin 4– Data Out –
Pin 3– Data Out +
Pin 2– Data In –
Pin 1– Data In+
OPTO IN
D
A
T
A
CH 8 CH 4
OPTO IN Pin 5 – Ground
Pin 4 – No Connection
Pin 3 – No Connection
Pin 2 – Data In/Out –
Pin 1 – Data In/Out +
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 7of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
Indicators
Power...................................................Green – unit powered
Off – no power applied to unit
Primary Opto Sync TX.........................Green - Primary optical channel transmitting
Off - Primary optical channel not transmitting
Primary Opto Sync RX ........................Green - Primary optical channel receiving
Off - Primary optical channel not receiving
Secondary Opto Sync TX....................Green - Secondary optical channel transmitting
Off - Secondary optical channel not transmitting
Secondary Opto Sync RX....................Green - Secondary optical channel receiving
Off - Secondary optical channel not receiving
Video Present CH1..............................Green – video signal present on video CH1 input BNC
Off – no video present on video CH1 input BNC
Data Present TX ..................................Green – logic one present on the corresponding data
input
Red – logic zero present on the corresponding data
input
Off – tri-state present on the corresponding data
input
This represents the data signals being transmitted on the optical fibre
Data Present RX..................................Green – logic one present on the corresponding data
output
Red – logic zero present on the corresponding data
output
Off – tri-state present on the corresponding data
output
This represents the data signals being received on the optical fibre
Physical Information
Dimensions
Height ..................................................3U Plug-in
Width....................................................14HP
Depth ...................................................170mm excluding connectors
Weight..................................................800grams
Mounting Details
The unit is designed to mounted into a custom Subrack on standard card guides
Configuration of the RS422/485 Data Channel
The RS422/485 data channel can operate in two modes that are set by SW2 on the primary channel
TX board. (See below for removal of the PCB and access to SW2)
Mode 1 – RS485 two wire half duplex transmission.
Mode 2 – RS422 four wire full duplex transmission. In this mode the RS422 output will transmit a
tristate condition as well as logic high and logic low for systems which require bus-ing of
the RS422 four-wire connection.
MODE Configuration Details SW2
position 1 SW2
position 2 SW2
position 3 SW2
position 4
1 RS-422 4 wire Point-to-Point -
and RS-422 BUS system OFF OFF OFF OFF
2 RS-485 2 wire BUS systems OFF ON ON ON
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 8of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
The data input for both the RS485 and the RS422 modes detects a tristate-input condition by
monitoring the differential voltage level across the input. A differential level below 500mV positive or
negative will be detected as a tristate condition. A level above 500mV positive or negative will be
detected as a logic 1 or logic zero respectively. It is important therefore to terminate the RS485
bus or the RS422 input bus using 120ohms if a pre-bias is present on the RS485 or RS422 bus.
A large number of third party equipment manufacturers apply a pre-bias on their RS485 bus. This pre-
bias is applied by pulling one arm of the RS485 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 a tri-state condition
is detected by the AMG2700 equipment, then these resistors should have a value above 1kohm.
Video input channel configuration
The video present on the video input can be inserted on one of eight video channels transmitted on
the optical fibre. The input channel number is set by SW1 on the primary channel TX board. (See
below for removal of the PCB and access to SW1)
The channel number is set by the SW1 switch positions 1 to 3 – see below.
Video Input Channel Number SW1
position 1 SW1
position 2 SW1
position 3
1 OFF OFF OFF
2 ON OFF OFF
3 OFF ON OFF
4 ON ON OFF
5 OFF OFF ON
6 ON OFF ON
7 OFF ON ON
8 ON ON ON
It is normal to set each AMG2700 insert unit to a different channel number. If a number is used twice
the second unit connected ‘down stream’ on the primary optical route will ‘over-write’ the first unit and
the video signal will be lost.
The channel number is only required to be set on SW1 on the primary channel TX card. Positions 1 to
3 on SW1 on the secondary channel TX card do not effect the operation of the equipment.
SW1 Switch Settings
Only switch positions 1 to 3 should be set by the user, all other switch settings are set at the factory as
follows:
Primary Channel TX Card (Single Channel Video TX Card)
Switch
Position Description Setting
1 Video channel configuration See above
2 Video channel configuration See above
3 Video channel configuration See above
4 Primary / Secondary Board Setting ON
5 Dual Redundant / Not dual redundant ON
6 Not Used OFF
7 Not Used OFF
8 On board data / Separate data card ON
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 9of 9 AMG2783A-1-DR-
CWDMn,m-SF Instruction
Sheet D15185-00
Secondary Channel TX Card (Zero Channel Video TX Card)
Switch
Position Description Setting
1 Not Used OFF
2 Not Used OFF
3 Not Used OFF
4 Primary / Secondary Board Setting OFF
5 Dual Redundant / Not dual redundant ON
6 Not Used OFF
7 Not Used OFF
8 Not Used OFF
Removal From the Case
Note: - The 2700 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.
In order to remove the case (to access SW1 and SW2)
1.1.Loosen and remove the four screws on the top and bottom of the unit’s rear panel.
1.2.Slide the PCB assembly connected to the rear panel out of the case.
1.3.Ensure that the optical fibre is not trapped.
1.4.The Primary Channel TX card is the PCB which has the video input BNC attached through the
rear panel labelled CH1.
SW1 and SW2 can be found on the bottom right hand corner of each board and are labelled, close to
the rear panel. The switch position are labelled on the switch, switch position 1 is always the furthest
from the edge of the PCB.
When re-inserting the main PCB into the housing take care not to trap the optical fibre or the board
interconnection cables.
Fasten the rear panel with the screws.
Safety
The 2700 series of products uses a Class 1 laser system in accordance with EN 60825-2:2000 and as
such the optical power emitted from the optical connector is regarded as eye safe under all operating
conditions.
However 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 the optical fibres systems see EN
60825-2:2000 or your local safety officer.
There are no user serviceable parts within the AMG2700 products.
In case of problem or failure contact your local support centre or AMG Systems Ltd, Technical Support
Department on tel. +44 (0) 1767 600777.
See unit data sheet for full specification.
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