AMG AMG3703B2-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.
P
age
1
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12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
AMG3703B2
-
DR
-
SF
Instruction Manual
Data Insert Unit with 2 Bi
-
directional Data Channels for a
Dual Redundant Singlemode Fibre Ring
The
AMG3703B2
-
DR
-
SF
is a standalone data insert unit designed to transmit and receive 2 bi
-
directional data chann
els to/from a dual redundant singlemode optical fibre ring. One data channel is a
multi
-
drop RS
-
485 link, the second data channel is effectivly a point to point RS
-
232 link.
The
AMG3703B2
-
DR
-
SF
is designed to be powered using an
AMG2003
standalone power s
upply.
The
AMG3703B2
-
DR
-
SF
is designed to operate with an
AMG3708BN
-
DR
-
SF
or rackmount
equivalent
AMG3708BRN
-
DR
-
SF
data receive unit. The receive unit will 'drop off' one RS
-
485 multi
-
drop channel plus eight individual RS
-
232 data channels which are being
transmitted around the fibre
ring from up to eight data insert units.

AMG Systems Ltd. reserves the right to make changes to this
document without notice. The informa
tion herein is believed to
be accurate. No responsibility is assumed by AMG for its use.
Page
2
of
12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
Contents
Introduction
3
Unit Functional Schematic
................................
................................
................................
..................
3
Data Channel Configuration
................................
................................
................................
...............
3
Connections
5
Optical Connections
................................
................................
................................
...........................
5
Power Connection
................................
................................
................................
..............................
5
Data and Audio Channel Connections
................................
................................
...............................
5
Front Panel Indicators
6
Power LED
................................
................................
................................
................................
..........
6
Fibre Optic LED’s
................................
................................
................................
...............................
6
Low Speed Data LEDs
................................
................................
................................
.......................
6
Data and Audio Channel Configuration
8
Data and Audio Channel Con
figuration
................................
................................
..............................
8
Data Interface Connections Channel A
................................
................................
..............................
8
Data Channel A Configuration
................................
................................
................................
............
8
Data / Audio Channel B Configuration
................................
................................
...............................
9
Data Interface
Daughter Board Options
................................
................................
.............................
9
Audio / Data Interface Connections RJ45
-
Channel B
................................
................................
......
9
Physical Information
1
0
Dimensions
................................
................................
................................
................................
.......
10
Mounting Details
................................
................................
................................
...............................
10
Removal / replacement from / to the Case
................................
................................
.......................
10
Safety
10
Maintenance and Repair
10

AMG Syste
ms 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
12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
Introduction
Unit Functional Schematic
The
AMG3703
B2
-
DR
-
SF
transmits and receives optical
signals from both a primary and a
secondary optical channel.
The two optical channels are
transmitted on the same optical
fibre in opposite directions,
operating at different
wavelengths. The primary
channel operat
es on 1550nm and
the secondary channel on
1310nm.
The
AMG3703B2
-
DR
-
SF
receives data signals and drops
off data signals transmitted from
an
AMG3708BN
-
DR
-
SF
receiver.
It then inserts data signals onto
the outgoing optical signal.
As each unit regenerat
es the optical signal, the optical dynamic range between each optically
connected node is 17dB.
Data Channel Configuration
At the
AMG3703B2
-
DR
-
SF
or rackmount
AMG3703B2R
-
DR
-
SF
insert unit, "B" channel data can be
inserted on one to eight "B" data channel
s transmitted on the optical fibre. The "B" data 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
insert
unit connected 'down stream' on the primary optical route will 'over
-
write' any coincident data
channel coming from the previous insert unit and those data signals will be lost.
The switch channel numbers 1 to 8, correspond to data channels 1
-
8. Unused s
witch channel
numbers 0 & 9 duplicate data channel selections 1 & 8 respectively. i.e. setting switch to position 0 or
1 selects data channel 1 and setting switch to position 8 or 9 selects channel 8.

AMG Syste
ms 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
12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
The
AMG3703B2
-
DR
-
SF
or rackmount
AMG3703B2R
-
DR
-
SF
is
designed to be connected in a ring or
point to point system. In a ring system single channel data insert units can be combined to make an 8
channel data transmission system as illustrated below.
If a fibre link is broken, operation of the ring contin
ues by making use of the secondary optical fibre
route as below:
If multiple breaks occur, operation is maintained will all the units still physically connected to the
receiver. For the scenario shown below data would now be lost from units 1 and 2 as t
here is now no
physical connection between the transceivers and the receiver. However operation of units 3 and 4 to
8 remain 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 it
s use.
Page
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AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
Connections
Optical Connections
PRIMARY OPTO OUT
Connector
................................
............
LC/PC
Optical Fibre
................................
........
One fibre
-
Singlemode
Prima
ry Optical Launch Power
............
-
5dBm
Wavelength
................................
..........
1550nm
Primary Optical Sensitivity
...................
-
22dBm
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
................................
.
5 Watts
Data and Audio Channel Connections
Total No. of Data Channels
.................
2 channels
DATA CHANNEL A
Data Channel A
................................
...
1 channel
Data Connector
................................
...
RJ45
Channel A Interface
On Board Data Interface
–
RS232, RS422 or RS485. Selec
ted by slide switch
above the RJ45 connector.
RS485
–
switch position
-
high (closest to BNC connections)
RS422
–
switch position
–
middle
RS232
–
switch position
–
low (furthest from BNC connections)
DATA CHANNEL B
Data Channel B
................................
...
1 channel
Data Conne
ctor
................................
...
RJ45
Channel B Interface
.............................
Defined by data/audio interface daughter board fitted into Slot 1
on main board and indicated by the 'x' in the AMG partno.

AMG Systems Ltd. reserves the right to make changes to this
document without notice. The in
formation 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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AMG3703B2
-
D
R
-
SF
Instruction
Sheet
D18168
-
01.doc
Front Panel Indicators
Power LED
Power
................................
...................
Green
-
unit powered
Off
-
no power applied to unit
Fibr
e Optic 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
Secondary 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
Low Sp
eed 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 Present TX (RS232)
....................
Green
-
logic zero (+V) presen
t 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)
...
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 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
Channel B
(When RS232 data daughter board fitted)
Data Present TX
................................
..
Green
-
logic zero (+V) present on IN+
Red
-
logic transitions present on IN+
Off
-
logic one (
-
V) present on IN+
This
represents the data signals being transmitted on the optical fibre
Data Present RX
................................
..
Green
-
logic zero (+V) present on OUT+
Red
-
logic transitions present on OUT+
Off
-
logic one (
-
V) present on OUT+

AMG Systems Ltd. reserves the right to make changes to this
document without notice. The in
formation herein is believed to
be accurate. No responsibility is assumed by AMG for its use.
Page
7
of
12
AMG3703B2
-
D
R
-
SF
Instruction
Sheet
D18168
-
01.doc
This represents the data signals being received on t
he optical fibre
Channel B
(When RS485 / RS422 data daughter board fitted)
Data Present TX
................................
..
Green
-
logic zero (+V,
-
V) present on IN+, IN
-
Red
-
logic transitions present on IN+, IN
-
Off
-
logic one (
-
V, +V) present on IN+, IN
-
This represents the dat
a signals being transmitted on the optical fibre
Data Present RX
................................
..
Green
-
logic zero (+V,
-
V) present on OUT+, OUT
-
Red
-
logic transitions present on OUT+, OUT
-
Off
-
logic one (
-
V , +V) present on OUT+, OUT
-
This represents the data signals being rece
ived on the optical fibre
Channel B
(When audio daughter board fitted)
Audio Present TX
................................
Green
-
audio present >
-
40dBm
Red
-
audio present > 0dBm (overload at +6dBm)
Off
-
audio not present or <
-
40dBm
This represents the audio signals being transmitt
ed on the optical fibre
Audio Present RX
................................
Green
-
audio present >
-
40dBm
Red
-
audio present > 0dBm (overload at +6dBm)
Off
-
audio not present or <
-
40dBm
This represents the audio signals being received from 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 responsibility is assumed by AMG for its use.
Page
8
of
12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
Data and Audio Chann
el Configuration
Data and Audio Channel Configuration
The
AMG3703B2
-
DR
-
SF
and rackmount equivalent
AMG3703B2R
-
DR
-
SF
sends and receives data
to/from Channel A and Channel B. Channel A is a single data interface selectable by the user with the
slide switch o
n the rear panel. Channel B carries a second channel of data / audio, the function and
physical interface being determined by the type of daughter board fitted to the B Channel data slot.
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)
OUT + (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 RS232, RS
422 (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 prese
nt 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 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 RS485 bus or
the RS422 input bus using 120
Ωif 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 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 do
uble 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
9
of
12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
Data / Audio Channel B Configuration
Data Channel B is operat
ional when fitted with the appropriate daughter board.
Data Interface Daughter Board Options
The data interface daughter board options are as follows:
Option Code
'x'
Part No.
Description
0
X12542
4 Wire Audio Interface Daughter Board
1
X04057
RS422/4
85 Data Interface Daughter Board
2
X04049
RS232 Data Interface Daughter Board
3
X04058
20mA Current Loop Data Interface Daughter Board
4
X12579
TTL Data Interface Daughter Board
5
X12578
Contact Closure Data Interface Daughter Board
6
X13038
FTT10A Ec
helon Lonworks Data Interface Daughter Board
Audio / Data Interface Connections RJ45
-
Channel B
RJ45 Channel B low speed data/audio interface connections:
Channel B
RJ45 Pin
No.
Data / Audio
Daughter Board
Cat 5/6 Cable
Colour Code T568B
1
Wh
ite/orange
2
Orange
3
OUT + (A)
White/green
4
IN
-
(B)
Blue
5
IN + (A)
White/blue
6
OUT
-
(B)
Green
7
White/brown
8
Brown
Note: (A) or (B) in brackets in above table refers to RS485 / RS422 data specification, not Channel A,
Channel B.

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 f
or its use.
Page
10
of
12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
Physi
cal Information
Dimensions
Height
................................
...................
112mm
Width
................................
....................
170mm (excluding connectors)
Depth
................................
...................
35mm
Weight
................................
..................
500grams
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 diag
ram on page 1 for dimensions. The unit is 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 electrostat
ic
discharge (ESD) procedures. 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 pane
l 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 t
rapped.
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 a
ny 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 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
[phone]
Technical Support
[phone]
Email
[e-mail]

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
11
of
12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
This page is intentionally blank
.

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
12
of
12
AMG3703B2
-
DR
-
SF
Instruction
Sheet
D18168
-
01.doc
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