AMG AMG4684BxER 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.
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AMG4684BxER
Instruction
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AMG4684BxER
Instruction Manual
8 Channel Video Receive Unit with up to 2 Bi
-
directional
Data and Audio Channels plus Ethernet for a Multimode
Fibre Link
The
AMG4684BxER
is a rackmount eight channel video receive unit designed to receive 8 video
signals and transmit and receive up to 2 data or audio signals plus full duplex 100BaseT Ethernet
connectivity over two Multimode fibres.
The
AMG4684BxER
is designed to plug into an AMG2005 subrack, which in turn fits into a 19" rack
system.
The
AMG4684
BxER
is designed to operate with
AMG4683BxE
or rackmount equivalent
AMG4683BxER
eight channel video transmit unit in a point to point 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 b
y AMG for its use.
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AMG4684BxER
Instruction
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D16811
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Contents
Introduction
3
Unit Functional Schematic
................................
................................
................................
..................
3
Optical Connection
................................
................................
................................
.............................
3
Connections
4
Video Output Connections
................................
................................
................................
..................
4
Optical Connections
................................
................................
................................
...........................
4
Power Connection
................................
................................
................................
..............................
4
Ethernet Connection
................................
................................
................................
...........................
4
Data and Audio Channel Connections
................................
................................
...............................
4
Data and Audio Channel Configuration
5
Data and Audio Channel Configuration
................................
................................
..............................
5
Data Interface Connections Channel A
................................
................................
..............................
5
Data Channel A Configuration
................................
................................
................................
............
5
Data / Audio Channel B Configuration
................................
................................
...............................
6
Data Interface Daughter Board Opti
ons
................................
................................
.............................
6
Audio / Data Interface Connections RJ45
-
Channel B
................................
................................
......
6
Front Panel Indicators
7
Power LED
................................
................................
................................
................................
..........
7
Video Output LED’s
................................
................................
................................
............................
7
Fibre Optic LED’s
................................
................................
................................
...............................
7
Low Speed Data LEDs
................................
................................
................................
.......................
7
Ethernet Operation
8
Physical Information
9
Dimensions
................................
................................
................................
................................
.........
9
Mounting Details
................................
................................
................................
................................
.
9
Removal / replacement from / to the Case
................................
................................
.........................
9
Safety
9
Maintenance and Repair
9

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
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AMG4684BxER
Instruction
Sheet
D16811
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Introduction
Unit Functional Sc
hematic
The
AMG4684BxER
drops off up to 8
video and 2 data signal transmitted from
the
AMG4683BxER
.
It also transmits 2 data channel to the
AMG4683BxER
.
Ethernet connectivity is also provided
between the two units.
Optical Connection
The
AMG4684BxER
is connected as illustrated below when used with an
AMG4683BxER
8
-
channel
transmit unit acting as a point to point system.

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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AMG4684BxER
Instruction
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Connections
Video Output Connections
No. of channels
................................
....
8
Connectors
................................
..........
75 ohm BNC Socket.
Output Impedance
...............................
75 ohm terminated.
Outpu
t 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
................................
..........
1310nm
Optical Fibre
................................
........
Multimode 50/125 or 62.5/125**
PRIMARY OPTO IN
Connector
................................
............
LC/PC
Primary Op
tical Sensitivity
...................
-
22dBm
Wavelength
................................
..........
1310nm
Optical Fibre
................................
........
Multimode 50/125 or 62.5/125**
**Note: the transmission distance is limited by the bandwidth of the Multimode optical fibre. The optical
data rate is 1.25Gbits/s. The maximum bandwidth specification
at this data rate for Multimode fibre is
2km. although in most cases the units will operate successfully over longer fibre lengths. It is
advisable however for distances greater than 2km, to have the optical fibre tested.
Power Connection
Power supply
................................
.......
from plug in connection on the AMG2009 / AMG2015 subrack
Power consumption
.............................
10 Watts max.
Ethernet Connection
Ethernet Data Connector
....................
RJ45
Interface
................................
...............
Auto
-
negotiation up to 100BASE
-
TX full duplex
Ethernet Data Rate
..............................
Maximum 50Mbits/s total Ethernet traffic
on fibre
Data and Audio Channel Connections
Total No. of Data Channels
.................
2 channels
DATA CHANNEL A
Data Connector
................................
....
RJ45
Channel A Interface
.............................
On Board Data Interface
–
RS232, RS422 or RS485. Selected
by slide switch above the RJ45 connector.
RS232
–
switc
h position
-
high (closest to BNC connections)
RS422
–
switch position
–
middle
RS485
–
switch position
–
low (furthest from BNC connections)
DATA CHANNEL B
Data Connector
................................
....
RJ45
Channel B Interface
.............................
Defined by data/audio interface daughter board fitted in
to 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 information herein is believed to
be accurate. No responsibility is assumed by AMG f
or its use.
Page
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AMG4684BxER
Instruction
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Data and Audio Channel Configuration
Data and Audio Channel Configuration
The
AMG4684BxE
and rackmount equivalent
AMG4684BxER
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 on 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 Chan
nel data slot.
Data Interface Connections Channel A
Channel A
RJ45 Pin
No.
RS485
[switch low]
RS422 [switch
mid]
RS232
[switch high]
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.
D
ata Channel A Configuration
Channel A is always present and allows for a RS232, 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 pre
sence 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
moni
toring 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 i
s important therefore to terminate the RS485 bus or
the RS422 input bus using 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 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 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 oth
erwise
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 f
or its use.
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Instruction
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Data / Audio Channel B Configuration
Data Channel B is operational 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
RS422/485 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 Echelon 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
White/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 tab
le 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 i
nformation herein is believed to
be accurate. No responsibility is assumed by AMG for its use.
Page
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Instruction
Sheet
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Front Panel Indicators
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
Or
g
-
channel present but no video on O/P BNC
Off
-
no video channel present
Fibre Optic LED’s
Primary Opto Sync TX
.........................
Green
-
optical channel transmitting
Off
-
optical channel not transmitting
Primary Opto Sync RX
........................
Green
-
optical channel receiving
Or
g
-
optical channel receiving but not sync.
Off
-
optical channel not transmitting
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 Present 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 th
e 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) pres
ent 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 OU
T+
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 i
nformation 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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AMG4684BxER
Instruction
Sheet
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Channel B
(When RS485 / RS422 data daughter board fitted)
Data Present TX
................................
..
Green
-
logic zero (+V,
-
V) present on IN+, IN
-
Red
-
logic transiti
ons present on IN+, IN
-
Off
-
logic one (
-
V, +V) present on IN+, IN
-
This represents the data 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 received 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 transmitted on the optical fibre
Audio Present RX
................................
Green
-
audio present >
-
40dBm
Red
-
audio present > 0dBm (overload at +6dBm)
Off
-
audio not present or <
-
40dBm
Thi
s represents the audio signals being received from the optical fibre.
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 both the Tran
smit unit and the Receive unit.
The Ethernet interface can operate at either 10Mbits/s half duplex, or 100Mbit/s full duplex, and data is
transmitted from one port the other port with the minimum of delay or buffering. The maximum
bandwidth (at 100Mbit/s
full duplex) available for transmission across the fibre link is nominally
50MBit/s.
The 100BaseT port does not implement MDI/MDIX; it should be connected with a straight though
cable to an external switch port and with a cross over cable when connected
directly to a PC or DTE.

AMG Sys
tems 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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AMG4684BxER
Instruction
Sheet
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Physical Information
Dimensions
Height
................................
..................
3U Plug
-
in
Width
................................
...................
14HP
Depth
................................
...................
170mm excluding connectors
Weight
................................
.................
1000grams
Mounting Details
The unit 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) 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 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 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 faces, or point them at other people.

Use only approve
d 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
[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
10
of
12
AMG4684BxER
Instruction
Sheet
D16811
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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
11
of
12
AMG4684BxER
Instruction
Sheet
D16811
-
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
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12
AMG4684BxER
Instruction
Sheet
D16811
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