AMG Systems AMG5715 User manual

AMG Systems Ltd. reserves the right to make changes to this
document without notice. The inform
ation herein is believed to
be accurate. No responsibility is assumed by AMG for its use.
Page
1
of
8
AMG5715
Instruction
Sheet
D17053
-
05.doc
AMG5715
Instruction Manual
Single Channel Video Transmit Unit with one Bi
-
directional
Data Channel and two Uni
-
directional Alarms for a
Singlemode Fibre Link
The
AMG5715
is a compact standalone one channel video transmit unit designed to
transmit 1 video
signal and transmit and receive 1 data signal plus 2 Uni
-
directional alarms over one Singlemode
optical fibre.
The
AMG5715
is designed to be powered using an
AMG2001
standalone power supply.
The
AMG5715
is designed to operate with an
A
MG5716 / AMG5716R
single channel or
AMG5726 /
AMG5726R
dual channel video receive unit in a point to point configuration. The R suffix in the partno.
indicates a rackmount 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
2
of
8
AMG5715
Instruction
Sheet
D17053
-
05.doc
Contents
Introduction
3
Unit Functional Schematic
................................
................................
................................
..................
3
Optical Connection
................................
................................
................................
.............................
3
Connections
4
Video Input Connections
................................
................................
................................
....................
4
Optical Connections Singlemode
................................
................................
................................
.......
4
Power Connection
................................
................................
................................
..............................
4
Data and Alarm Channel Connections
................................
................................
...............................
4
Front Panel Indicators
5
Power LED Video & Data
................................
................................
................................
...................
5
Low Speed
Data LEDs
................................
................................
................................
.......................
5
Alarm LEDs
................................
................................
................................
................................
.........
5
Data and Alarm Channel Configuration
6
Data Channel Configuration
................................
................................
................................
...............
6
Data Interface Connections
................................
................................
................................
................
6
Alarm Channel Configuration
................................
................................
................................
.............
7
Uni
-
directional Alarm Interface Connections
................................
................................
......................
7
Physical Information
8
Dimensions
................................
................................
................................
................................
.........
8
Mountin
g Details
................................
................................
................................
................................
.
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
AM
G5715
Instruction
Sheet
D17053
-
05.doc
Introduction
Unit Functional Schematic
The
AMG5715
transmits 1 video plus 1
data and 2 uni
-
directional alarm signals
to
the
AMG5716
receive unit.
It also receives 1 data signal transmitted
from the
AMG5716
.
Optical Connection
The
AMG5715
connections are illustrated in the following example which shows two transmit units
together with an
AMG5726R
two channel rackm
ount receive unit configured as a dual channel point to
point system.

AMG Systems Ltd. reserves the right to make changes to this
document without notice. The information herein is bel
ieved to
be accurate. No responsibility is assumed by AMG for its use.
Page
4
of
8
AMG5715
Instruction
Sheet
D17053
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05.doc
Connections
Video Input Connections
No. of channels
................................
....
1
Connector
................................
............
75 ohm BNC Socket.
Input Impedance
................................
..
75 ohm terminated.
Input Level
................................
...........
1 volt p
-
p nominal
Frequency Response
...........................
10Hz to 7MH
z.
Optical Connections Singlemode
No. of Optical Connections
..................
1 per video channel
Optical Fibre
................................
........
Singlemode
Connector
................................
............
SC/PC
Primary Optical Launch Power
............
-
10dBm
Transmit Wavelength
...........................
1310nm
Primary Optical Sensitivity
...................
-
30dBm
Receive Wavelength
............................
1510nm
Minim
um Optical Dynamic Range
.......
20dB.
Power Connection
Connector Type
................................
...
Removable 2
-
pin, 3.81mm, Screw Terminal
Connector Partno.
................................
Phoenix 1803578
Supply Voltage
................................
.....
+12 to +15Vdc
Maximum Power
................................
..
1.5 Watts
Data and Alarm Channel Connections
No. of Data Channels
..........................
1
No
. of Alarm Channels
.........................
2
Connector
................................
............
Removable 8
-
pin, 3.81mm, Screw Terminal
Connector Partno.
................................
Phoenix 1803633
Data Interface
................................
......
RS
-
232, RS
-
422 or R
-
S485. Selected by slide switch above the
BNC connector.
RS
-
232
–
Switch Position
-
Left
RS
-
422
–
Switch Posi
tion
-
Centre
RS
-
485
–
Switch Position
-
Right
Alarm input
................................
...........
Contact Closure pull
-
up is 330R to +3V3

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
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of
8
AMG5715
Instruction
Sheet
D17053
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05.doc
Front Panel Indicators
Power LED Video & Data
Power / Video / Opto
...........................
Green
-
Video input & Opto sync.
R/G
-
Opto sync. but no Video input.
G/R
-
Video
input but no Opto sync.
Red
-
Unit powered, no Video or Opto sync.
Off
-
No power applied to unit
Low Speed Data LEDs
Data Present IN (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 Present IN (RS232)
....................
Green
-
logic zero (+V) present on input IN+
Red
-
logic transitions present on input IN+
Off
-
logic one (
-
V) present on input IN+
IN corresponds to the data signals being transmitte
d onto the optical fibre.
Data Present OUT (RS485 or RS422)
Green
-
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 OUT (RS232)
................
Green
-
logic zero (+
V) present on OUT+
Red
-
logic transitions present on OUT+
Off
-
logic one (
-
V) present on OUT+
OUT corresponds to the data signals being received from the optical fibre.
Alarm LEDs
ALARM 1 IN
................................
.........
Green
-
Alarm ON / Contacts closed.
Off
-
Alarm OFF / Co
ntacts open.
ALARM 2 IN
................................
.........
Green
-
Alarm ON / Contacts closed.
Off
-
Alarm OFF / Contacts open.

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
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of
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AMG5715
Instruction
Sheet
D17053
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05.doc
Data and Alarm Channel Configuration
The
AMG5715
transmit unit sends and receives data to/from an
AMG5716
or rackmount equivalent
AMG5716R
receive unit. The
physical data interface RS
-
485, RS
-
422 or RS
-
232 is selectable by the
user with the slide switch on the front panel.
There are also two uni
-
directional alarm channels provided which send on/off signals from the
AMG5715
to the receive unit and are typica
lly used to transmit contact closure status.
Data Channel Configuration
The low speed data channel provides an RS
-
232, RS
-
422 (full duplex, four wire) or RS
-
485 (half
duplex, two wire) interface defined by the mode switch on the front panel. The data cha
nnel as
shipped from the factory is set up for RS
-
485 operation unless otherwise requested.
The data input for both the RS
-
485 and the RS
-
422 modes detects a tri
-
state input condition by
monitoring the differential voltage level across the input. A differ
ential level 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 RS
-
485 bus or
the RS
-
422
input bus using 120
Ωif a pre
-
bias is present on the RS
-
485 or RS
-
422 bus.
A large number of third party equipment manufacturers apply a pre
-
bias on their RS
-
485 bus. This pre
-
bias is applied by pulling one arm of the RS
-
485 bus high (+5 volts) and the other arm low (0 vol
ts)
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 than 750Ωthe bus can
be multiple terminated as required to ensure that a tri
-
state level is detected.
The system detects a tri
-
state input condition on the data channel bus when in RS
-
485 or RS
-
422
mode.
Data Interface Connections
Data Channel
Connector
Pin No.
RS
-
485
[switch right]
RS
-
422
[switch mid]
RS
-
232
[switch left]
1
IN + (A)
IN
2
IN
-
(B)
3
GND
GND
GND
4
5
6
7
IN/OUT + (A)
OUT + (A)
8
IN/OUT
-
(B)
OUT
-
(B)
OUT
Note: (A) or (B) in brackets in the above table refers to RS
-
485 / RS
-
422 data specification.

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
AMG5715
Instruction
Sheet
D17053
-
05.doc
Alarm Channel Configuration
The
AMG5715
provides 2 uni
-
directional alarm / contact closure inputs. Each alarm input is typically
connected to a contact closure switch.
Each ALARM IN+ input incorporates a 330R pull
-
up resistor to
the internal +3V3 supply.
Uni
-
directional Alarm Interface Connections
Alarm Interface
Connector
Pin No.
Alarm 1
Alarm 2
1
2
3
GND
4
ALARM 1 IN +
5
GND
6
ALARM 2 IN +
7
8

AMG Systems Ltd. reserves the right to make changes to this
document without notice. The information herein is believed to
be a
ccurate. No responsibility is assumed by AMG for its use.
Page
8
of
8
AMG5715
Instruction
Sheet
D17053
-
05.doc
Physical Information
Dimensions
Height
................................
...................
56mm
Width
................................
....................
55
mm (excluding connectors)
Depth
................................
...................
25mm
Weight
................................
..................
200grams
Mounting Details
The unit is designed to be mounted using the clip holder supplied, which can be fixed to a wall or
panel using 2 off 4mm screws.
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 fa
ces, 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 a
nd 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 Par
k, Biggleswade, Beds., SG18 8QB, UK.
Phone
[phone]
Technical Support
[phone]
Email
[e-mail]