AMG AMG6184-DR-SF User manual

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
12
AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
AMG6184
-
DR
-
SF
Instruction Manual
8 Channel Video Receive Unit with 1 Bi
-
Directional Data
Channel and Dual Redundant Operation
The
AMG6184
-
DR
-
SF
is a standalone eight channel video receive unit designed to receive up to 8
video signals and transm
it & receives one bi
-
directional data channel to/from a singlemode optical
fibre ring with Dual Redundant operation.
In addition, LED diagnostics is inherent within each unit to enable easy identification of fault location
from any position in the loop.
The
AMG6184
-
DR
-
SF
is designed to be powered using an
AMG2003
standalone power supply.
The
AMG6184
-
DR
-
SF
is designed to operate with up to eight
AMG6113
-
DR
-
SF
single channel video
insert units. Each receiver will 'drop off' up to eight video channels which
are being transmitted around
the fibre ring. The
AMG6184
-
DR
-
SF
may also be used with other combinations of single, dual or four
channel video and data 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.
Page
2
of
12
AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
Contents
Introduction
3
Unit Functional
Schematic
................................
................................
................................
..................
3
Video Input Channel Configuration
................................
................................
................................
....
3
Dual Redundant Operation
................................
................................
................................
.................
3
Optical Connections
4
Connections
5
Video Output Connections
................................
................................
................................
..................
5
Optical Connections
................................
................................
................................
...........................
5
Power Connection
................................
................................
................................
..............................
5
Data and Audio Channel Connections
................................
................................
...............................
5
Data and Audio Channel Con
figuration
6
Data and Audio Channel Configuration
................................
................................
..............................
6
Data Interface Connections Channel A
................................
................................
..............................
6
Data Channel A Configuration
................................
................................
................................
............
6
Front Panel In
dicators
7
Power LED
................................
................................
................................
................................
..........
7
Video Output LED’s
................................
................................
................................
............................
7
Fibre Optic LED’s
................................
................................
................................
...............................
7
Low Speed Data LEDs
................................
................................
................................
.......................
7
Self Diagnostic LED
indicators
8
Self Diagnostic LED Example 1: Single Fibre Break
................................
................................
..........
8
Self Diagnostic LED Example 2: Tx. Unit Failure
................................
................................
...............
9
Physical Information
10
Dimensions
................................
................................
................................
................................
.......
10
Mounting Details
................................
................................
................................
...............................
10
Removal / replacement from / to the Case
................................
................................
.......................
10
Safety
10
Maintenance and Repair
10

AMG Systems Ltd. reserves the right to make changes t
o this
document without notice. The information herein is believed to
be accurate. No responsibility is assumed by AMG for its use.
Page
3
of
12
AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
Introduction
Unit Functional Schematic
The
AMG6184
-
DR
-
SF
transmits
and receives optical signals from
both a primary and secondary
optical channel. The primary and
secondary channels operate at
the same wavelength (1550nm)
and are transmitted
on separate
optical fibres.
The
AMG6184
-
DR
-
SF
drops off
up to 8 video signals and one
data signal transmitted from the
AMG6113
-
DR
-
SF
insert units.
As each unit regenerates the optical signal, the optical dynamic range between each optically
connecte
d node is 17dB.
Video Input Channel Configuration
At the
AMG6113
-
DR
-
SF
or rackmount
AMG6113R
-
DR
-
SF
insert unit, video signals present at the
BNC inputs can be inserted on one to eight video channels transmitted on the optical fibre. The first
video chann
el 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
insert unit connected 'down stream' on the primary optical r
oute 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. Unused switch channel
numbers 0 & 9 duplicate video channe
l 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.
Dual Redundant Operation
In normal operation where optical connection to both the previous unit and
subsequent insert units is
OK, video and data signals are transmitted on the primary output and data is received from the
primary input. The secondary optical input is independent and is regenerated on the secondary output.
If the primary input signal is
not present, a unit will shut down the secondary output to inform the
previous unit that the signal route is not OK. The previous unit will then send out the video and data
signals on its secondary output in the opposite direction. This signal will be repe
ated around the ring to
get back to this unit on the secondary route. As the primary input is not present on this unit, the data
signal will now be taken from the secondary optical input thus maintaining integrity of the data
transmission.
If the secondar
y input signal is not present, an insert unit will assume that the route to the next unit is
not OK and send out the video and data signal on the secondary optical output. This video and data
will be transmitted to the next unit around the ring in the oppo
site direction on the secondary route.

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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AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
Optical Connections
The
AMG6184
-
DR
-
SF
or rackmount
AMG6184R
-
DR
-
SF
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
co
mbined to make up an 8 channel video transmission system as illustrated below.
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 below 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
oper
ation of cameras 4,5,6,7 and 8 remains fully functional.

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
12
AMG6184
-
DR
-
SF
Instr
uction
Sheet
D18236
-
01.doc
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 OUT
Connector
................................
............
LC/PC
Primary Optical Launch Power
............
-
5dBm
Wavelength
................................
..........
1550nm
Secondary Optical Sensitivity
..............
-
22dBm
Wavelength
................................
..........
1310nm
PRIMARY OPTO IN
Connector
................................
............
LC/PC
Primary Optical Sensitivity
...................
-
22dBm
Wavelength
................................
..........
1550nm
Secondary Optica
l Launch Power
.......
-
5dBm
Wavelength
................................
..........
1310nm
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
Data and Audio
Channel Connections
DATA CHANNEL A
Data Channel A
................................
...
1 channel
Data Connector
................................
...
RJ45
Channel A Interface
On Board Data Interface
–
RS232, RS422 or RS485. Selected by slide switch
above RJ45 connector.
RS485
–
switch position
-
high (closest to BNC connection
s)
RS422
–
switch position
–
middle
RS232
–
switch position
–
low (furthest from BNC connections)
DATA CHANNEL B
Data Channel B
................................
...
Not Present

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
12
AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
Data and Audio Channel Configuration
Data and Audio Channel Configuration
The
AMG6184
-
DR
-
SF
and rackmount equi
valent
AMG6184R
-
DR
-
SF
sends and receives data to/from
Channel A. Channel B is not available. Channel A is a single data interface selectable by the user with
the slide switch on the rear panel.
Data Interface Connections Channel A
Channel
A
RJ45 Pin
No.
RS485
[switch high]
RS422
[switch mid]
RS232
[switch low]
Cat 5/6 Cable
Colour Code T568B
1
IN + (A)
GND
White/orange
2
IN
-
(B)
IN
Orange
3
White/green
4
Blue
5
White/blue
6
Green
7
IN/OUT + (A)
O
UT + (A)
N/A
White/brown
8
IN/OUT
-
(B)
OUT
-
(B)
OUT
Brown
Note: (A) or (B) in brackets in above table refers to RS485 / RS422 data specification, not Channel A,
Channel B.
Data Channel A Configuration
Channel A is always present and allows for a RS
232, RS422 (full duplex, four wire) or RS485 (half
duplex, two wire) interface depending on the position of the switch located above the RJ45 connector.
The switch signifies the presence of the X16004 Low Speed Data/Audio Interface Board. If there are
LED'
s present on the RJ45 connector then an X16003 Ethernet Interface Board is fitted.
The data input for both the RS485 and the RS422 modes detects a tri
-
state input condition by
monitoring the differential voltage level across the input. A differential leve
l 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 zero respectively. It is important therefore to terminate the RS485 bus or
the RS422 input bus usi
ng 120Ωif 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 v
olts)
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 750Ωthe bus can
be double or triple terminated as required to ensure that a
tri
-
state level is detected.
Note: The Data Channel A is shipped from the factory set up for RS485 operation unless otherwise
requested.

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
12
AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
Front Panel Indicators
Power LED
Power
................................
..................
Green
-
unit po
wered
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 Optic LED’s
Primary Opto Sync TX
.........................
Green
-
opti
cal channel transmitting
Off
-
not transmitting
Primary Opto Sync RX
........................
Green
-
optical channel receiving
Org
-
receiving but not synchronised.
Red
-
receiving, but fault on a previous unit**
Off
-
not receiving
Secondary Opto Sync TX
....................
Green
-
optica
l channel transmitting
Off
-
not transmitting
Secondary Opto Sync RX
...................
Green
-
optical channel receiving
Org
-
receiving but not synchronised.
Red
-
receiving,but fault on a previous unit**
Off
-
not receiving
**See appropriate section on Self Diag
nostic LEDs for full description.
Low Speed Data LEDs
Channel A
Data Present TX (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 Presen
t TX (RS232)
...................
Green
-
logic zero (+V) present on input IN+
Red
-
logic transitions present on input IN+
Off
-
logic one (
-
V) present on input IN+
This represents the data signals being transmitted on the optical fibre
Data Present RX (RS485 or RS422)
...
G
reen
-
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 RX (RS232)
...................
Green
-
logic zero (+V) present on OUT+
Red
-
logic transitions present on OUT+
Off
-
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 r
esponsibility is assumed by AMG for its use.
Page
8
of
12
AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
Self Diagnostic LED indicators
In normal operation,data is transmitted continuously on both a Primary and a Secondary optical
channel in differe
nt directions around the fibre loop. The system is Dual Redundant and if one or more
optical faults develop, the ring will automatically adapt to maintain the best optical path.
An
AMG6184
-
DR
-
SF
or rackmount
AMG6184R
-
DR
-
SF
receive unit continuously monito
rs the optical
status of each
AMG6113
-
DR
-
SF
or
AMG6113R
-
DR
-
SF
insert unit and sends this status information
around the fibre loop to every insert unit. Each insert unit displays the status of both the Primary and
Secondary optical channels using the fibre
optic status LEDs. This information is in addition to the
standard status indication.
An optical fault condition can either be as a result of a failed insert unit or a fibre break. If an optical
fault is present at a preceding insert unit, the relative lo
cation of the optical fault is indicated by flashing
(red) the appropriate Primary Rx or Secondary Rx LED a number of times. The location of the failed
unit is viewed relative to itself and in the direction of the received optical signal. The number of red
LED flashes is a "count" which indicates the number of working units between itself and the optical
fault.
In the case of a complete failure of the Receive Unit or all connected optical fibres, this would render
the system unusable and the Diagnostic LED
indicators invalid.
Self Diagnostic LED Example 1: Single Fibre Break
In the following example, a system is comprised of four insert units Tx1
-
Tx4 and one receive unit Rx1
and there is a fibre break present between two adjacent insert units Tx3 and Tx4.
The break affects
both the the Primary and Secondary Optical channels.
a) At insert unit Tx1
, the Pri
-
Rx LED flashes twice: indicating a Primary Rx. fault in the direction of
Tx2, 2 units away. The Sec. Rx LED flashes twice: indicating a Secondary
Rx. fault in the direction of
Rx1, 2 units away.
b) At insert unit Tx2
, the Pri
-
Rx LED flashes once: indicating a Primary Rx. fault in the direction of
Tx3, 1 unit away. The Sec. Rx. LED flashes 3 times: indicating a Secondary Rx. fault in the direction o
f
Tx1, 3 units away.
c) At insert unit Tx3
, the Pri
-
Rx LED is off: indicating that this unit is not receiving a Primary signal
from Tx4. The Sec. Rx LED flashes 4 times: indicating a Secondary Rx. fault in the direction of Tx2, 4
units away. The Sec
-
Tx LE
D is off: indicating that the Secondary Tx. (output) has been turned off.
d) At insert unit Tx4
, the Pri Rx LED flashes 4 times: indicating a Primary Rx. fault in the direction of
Rx1, 4 units away. The Sec. Rx LED is off : indicating that this unit is no
t receiving a Secondary signal
from Tx3.

AMG Systems Ltd. reserves the right to make changes to this
document without notice. The information herein is believed to
be accurate. No r
esponsibility is assumed by AMG for its use.
Page
9
of
12
AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
e) At receive unit Rx1
, the Pri
-
Rx LED flashes 3 times: indicating a Primary Rx. fault in the direction
of Tx1, 3 units away. The Sec. Rx LED flashes once: indicating a Secondary Rx. fault in the direction
of Tx4,
1 unit away.
Self Diagnostic LED Example 2: Tx. Unit Failure
In the following example, a system is comprised of four insert units Tx1
-
Tx4 and one receive unit Rx1
and there is a complete failure or power loss at Tx unit Tx2. This effectively creates two
fibre breaks
between adjacent insert units Tx2 and Tx3, and between Tx3 and Tx4. The break affects both the the
Primary and Secondary Optical channels.
a) At insert unit Tx1
, the Pri
-
Rx LED flashes once: indicating a Primary Rx. fault in the directi
on of
Tx2, 1 unit away. The Sec. Rx LED flashes twice: indicating a Secondary Rx. fault in the direction of
Rx1, 2 units away.
b) At insert unit Tx2
, the Pri
-
Rx LED is off: indicating that this unit is not receiving a Primary signal
from Tx3. The Sec Rx.
LED flashes 3 times:indicating a Secondary Rx. fault in the direction of Tx1, 3
units away. The Sec. Tx LED is off: indicating that the Secondary Tx. (output) has been turned off.
c) At insert unit Tx3
, the unit has failed or lost its supply power, so all
LEDs are off.
d) At insert unit Tx4
, the Pri
-
Rx LED flashes 3 times: indicating a Primary Rx. fault in the direction of
Rx1, 3 units away. The Sec. Rx LED is off: indicating that this unit is not receiving a Secondary signal
from Tx3.
e) At receive unit
Rx1
, the Pri
-
Rx LED flashes twice: indicating a Primary Rx. fault in the direction of
Tx1, 2 units away. The Sec. Rx LED flashes once: indicating a Secondary Rx. fault in the direction of
Tx4, 1 unit away.

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
AMG6184
-
DR
-
SF
Instruction
Sheet
D18236
-
01.doc
Physical Information
Dimensions
Height
................................
...................
112mm
W
idth
................................
....................
170mm (excluding connectors)
Depth
................................
...................
70mm
Weight
................................
..................
1000grams
Mounting Details
The AMG unit is supplied with a clip
-
on mounting bracket which should be attached to a panel or wall
using 2 off 4.0mm screws, see diagram on page 1 for dimensions. The unit i
s clipped into the
mounting bracket, and is then held firmly in position.
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 prope
rly 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 Prod
ucts 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 fibr
e
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 off
icer.
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
[phone]
Technical Support
[phone]
Email
[e-mail]