Communications Specialties Pure Digital FIBERLINK 3800 Series User manual
WORLD HEADQUARTERS
55 Cabot Court
Hauppauge, NY 11788 USA
TEL: (631) 273-0404 FAX:(631) 273-1638
WWW: http://www.commspecial.com
EMAIL: [email protected]
Communications Specialties Pte Ltd
100 Beach Road
#22-09 Shaw Tower
Singapore 189702
TEL: +65 6391 8790 FAX: +65 6396 0138
EMAIL: [email protected]
P/N: 121563 Rev. L
USER’S MANUAL
Video with 2-Way Data
3800 Series
CONTENTS
General Information ................................................................................... 2
Introduction ........................................................................ 2
Technical Specifications ..................................................... 2
Installation Instructions .............................................................................. 4
Installation Procedure ......................................................... 4
System System Switch Settings..……………………….... 5
System Terminal Block Connections..……………….. .... 6
Indicator LEDs and Alarm Circuitry .................................. 8
Operating Pointers and Troubleshooting .................................................... 9
Maintenance .......................................................................................... 10
Statement of Warranty .............................................................................. 11
Copyright ©2001, Communications Specialties, Inc.
Fiberlink and the Starburst logo are registered trademarks of Communications
Specialties, Inc.
1
GENERAL INFORMATION
2
X Values: Y Values:
1 = 850 nm Multimode S = ST connector
3 = 1310 nm Multimode F = FCPC connector
7 = 1310 nm Single Mode
9 = 1550 nm Single Mode
Technical Specifications
Model Part Numbering Configurations:
Unit Type 1 Fiber Version 2 Fiber Version
Transmitter Box 3810-BXY 3820-BXY
Transmitter Card 3810-CXY 3820-CXY
Receiver Box 3811-BXY 3821-BXY
Receiver Card 3811-CXY 3821-CXY
Data/PTZ:
Protocols Supported........... RS-232, RS-422, RS-485 2-wire, RS-485 4-wire
Data Rate ........................... DC to 115 Kb/s
Signal Connectors .............. Removable terminal block
Introduction
The Pure Digital Fiberlink® 3800 series optical transmission system is a
configurable, adjustment-free transceiver that employs digital processing and
transmission techniques to convey 1-way video and bidirectional data signals.
The system is available in both one fiber or two fiber versions.
The use of digital encoding assures high-quality noise-free transmissions that
retain all of their initial parameters regardless of fiber optic cable attenuation.
In addition, an integral indicator LED is provided on each unit to continuously
signify the presence of an optical signal and thus, the proper operation of each
side of the system.
Note: 850 nm one fiber version not available.
WARRANTY
11
Communications Specialties, Inc. (CSI) warrants that for a period of three years
after purchase by the Buyer, the Pure Digital Fiberlink 3800 Series Transmis-
sion System will be free from defects in material and workmanship under nor-
mal use and service. A Return Material Authorization (RMA) number must be
obtained from CSI before any equipment is returned by the Buyer. All material
must be shipped to CSI at the expense and risk of the Buyer. CSI’s obligation
under this warranty will be limited, at its option, to either the repair or replace-
ment of defective units, including free materials and labor. In no event shall
CSI be responsible for any incidental or consequential damages or loss of prof-
its or goodwill. CSI shall not be obligated to replace or repair equipment that
has been damaged by fire, war, acts of God, or similar causes, or equipment
that has been serviced by unauthorized personnel, altered, improperly installed
or abused.
RMA numbers and repairs can be obtained from:
Communications Specialties, Inc.
55 Cabot Court
Hauppauge, N.Y. 11788 USA
Tel: (631) 273-0404 Fax: (631) 273-1638
www.commspecial.com
Or in the Asia Pacific Region:
Communications Specialties Pte Ltd
100 Beach Road
#22-09 Shaw Tower
Singapore 189702
Tel: +65 6391 8790 Fax: +65 6396 0138
Please have your serial number (located on the top label of the unit) available
when contacting us.
Video:
Bandwidth (-3 dB) ......................... 20 Hz to 8 MHz
Input/output Impedance ................. 75 Ohms
Input/output Voltage...................... 1 V p-p nom., 1.3Vp-p max.
Differential Phase .......................... 1° typical
Differential Gain ............................ 1.5% typical
Signal to Noise Ratio ..................... 60 dB CCIR weighted
Signal Connectors .......................... BNC
Optical:
Operating Wavelength ................... 850nm, 1310nm, 1550nm MM/SM
Optical Fiber .................................. 62.5/125microns MM or
8-10/125 microns SM
Optical Connectors ........................ ST or FCPC
1 Fiber 2 Fibers 1 Fiber 2 Fibers
Wavelength Loss Budget (in dB) Distance* (in km)
850 MM N/A 0-18 N/A 0-2
1310 MM 0-10 0-15 0-5 0-15
1310 SM 0-19 0-20 0-45 0-50
1550 SM 11-26 11-28 40-65 35-90
*Note: Distance specifications are only approximate and are not guaranteed.
Operating loss budget must not be exceeded.
Misc:
Operating Temperature Range....... -35 to +75 degrees C
Operating Power ............................ 9 to 24 Volts AC or DC @ 8 watts (max)
3
CAUTION! The transmitting element in some versions of the Pure Digital Fiber-
link transceiver unit is a solid-state Laser Diode located in the optical connec-
tor on the unit. This device emits invisible infrared electromagnetic radiation
which can be harmful to human eyes. The radiation from this optical connector,
if viewed at close range without a fiber optic cable connected to the optical
connector, may be of sufficient intensity to cause instantaneous damage to the
retina of the eye. Direct viewing of this radiation should be avoided at all times.
If, after reviewing the above possibilities, the system is still not operating, please
contact the Customer Service Department for further assistance
MAINTENANCE
The Pure Digital Fiberlink 3800 Series transmission units have been manufac-
tured using the latest semiconductor devices and techniques that electronic
technology has to offer. They have been designed for long, reliable, and trouble
free service and are not normally field repairable. Should difficulty be encoun-
tered, Communications Specialties maintains a complete service facility to ren-
der accurate, timely and reliable service of all products.
The only maintenance that can be provided by the user is to ascertain that
optical connectors are free of dust or dirt that could interfere with light trans-
mission and that electrical connections are secure and accurate.
All other questions or comments should be directed to our Customer Service
Department. It should be noted that many “problems” can easily be solved by
a simple telephone call.
10
multidrop mode. If this problem occurs, it may be that
your units are attempting to interface with other manu-
facturers’ products that have resting states opposite to
the way in which the Fiberlink units are programmed.
(No standard exists.) You can compensate for this
condition by simply switching the polarities of the (+)
and (-) pins. To do this, first swap the Tx (+) and Tx (-)
pins with one another and then do the same for the Rx
(+) and Rx (-) pins. Make sure to do this on both the
transmitter and receiver units.
INSTALLATION INSTRUCTIONS
Installation Procedure
The Pure Digital Fiberlink 3800 Series transmission systems are normally preset for
immediate use with the data protocol set to RS-232. If a different protocol is de-
sired, it can be easily selected using the flip switches located on the back panel of the
unit. (See table on next page.) There are indicator LEDs on the units for monitoring
purposes and various user selectable options for the various signals accommodated.
The following instructions describe the typical installation procedure and the function
of the LED indicators.
1. The various options, as already mentioned, have been preset, with data
protocol set as RS-232. If RS-422 or RS-485 (2
or 4 wire) protocol is desired instead, please refer
to instructions on the following page.
2. If connecting more than one Fiberlink unit on one
line (daisy chaining) while in either RS-422 or RS-
485 4-wire modes, you must set the unit to the RS-485 4-wire multidrop
mode.
3. Connect the video source to the video input BNC connector on
the transmitter unit.
4. Connect the video output BNC on the receiver unit to the coax cable BNC
connector.
5. Connect the fiber optic cable or cables between the two units.
6. Apply power to both Pure Digital Fiberlink units. Refer to Figure 1 for DC
power connections.
7. When power is applied, the green POWER LED will light, indicating the
presence of operating power. The green LINK LED should also light, indicat-
ing the presence of a received optical signal. Note that the card-cage version
will have a third red LED for indicating the presence of an alarm condition.
4
OPTICAL FIBER:
GENERAL:
Versions of the Pure Digital Transmission System are
available to operate with most multimode (MM) and
single-mode (SM) optical fibers. Be certain that the
correct size fiber is being used for the particular trans-
mitter/receiver combination.
Also be certain that the attenuation and bandwidth of
the fiber optic cable being used is within the range of
the system’s loss budget specifications.
The status of any of the LINK indicator LED should
provide the first clue as to the origin of any operation
failure. If this LED is off it usually means that the
fiber is broken or has too much attenuation.
Next, be certain that the input and output signal con-
nections are proper. Due to the number of positions,
it is possible that there may be wrong connections.
Finally, although multimode and single mode devices
may look the same, they will not operate properly to-
gether. Using the wrong device or fiber can easily add
more attenuation than specified, resulting in poor over-
all performance.
Even when installed exactly as directed, it is possible
that the data function may fail to operate properly
when using the Fiberlink units in either the RS-485
2-wire auto xmit/receive mode or the RS-485 4-wire
OPERATING POINTERS AND
TROUBLESHOOTING
9
DATA CIRCUIT:
5
System Switch Settings
The data interface circuit used in this product has external switches that are used
to configure the various signal options. These are preset to RS-232 at the time of
shipment. If changes are required, the positions of these switches must be changed
in accordance with the following table.
Data Input/Output Plug-in
Switches 1,2,3,7,8,9 and 10 are used to select the desired protocol. Positions for
these are as follows:
Protocol 12378910
RS-232 Off Off Off Off Off Off Off
RS-422/485 4-wire Off On Off Off Off On On
point-to-point
RS-485 2-wire Off On On On On On Off
auto xmit/receive
RS-485 4-wire
multidrop On On On Off Off On Off
RS-485 2-Wire
Zero xmit/receive On On Off On On On Off
Switches 4, 5 and 6 are used only in the RS-485 configurations to select the
auto time interval that the unit will wait before switching back to the receive
mode (tri-state). Refer to the table on the following page for switch positions.
Indicator LEDs and Alarm Circuitry
The Pure Digital Fiberlink 3800 Series transmitters and receivers have integral
indicator LEDs that monitor the state of the unit. Their status is as follows:
8
The card cage unit also provides an output to drive a model 6020 Alarm Sens-
ing Module which provides an audible tone and activates a set of contacts for
external signaling purposes.
POWER (Tx & Rx):(Green) Indicates that correct power has been applied.
LINK (Tx): OFF: Indicates no video detected on input BNC and no
active data detected to or from transmitter unit.
STEADY GREEN: Indicates video detected on input BNC
and no active data detected to or from transmitter unit
ON BLINKING OFF: Indicates video detected on input
BNC and active data detected to or from transmitter unit.
OFF BLINKING ON: Indicates no video detected on in-
put BNC and active data detected to or from transmitter unit.
LINK (Rx): OFF: Indicates no video detected over fiber and, as a
result, no video present on output BNC. No active data
detected to or from receiver unit.
STEADY GREEN: Indicates video detected over fiber and,
as a result, video present on output BNC. No active data
detected to or from receiver unit.
ON BLINKING OFF: Indicates video detected over fiber
and, as a result, video present on output BNC. Active data
detected to or from receiver unit.
OFF BLINKING ON: Indicates no video detected over
fiber and, as a result, no video present on output BNC.
Active data detected to or from receiver unit.
ALARM (Tx & Rx): ON: Video present (Only on rack card version)
OFF: Video not present (Only on rack card version)
8. Connect the various input signals to the proper positions on the removable
terminal blocks. Be certain to check all connections and assure that inputs
and outputs are not intermixed. Refer to the next section for the various
connections.
9. The system should now be operational.
NOTE: 3820 Card Only:
Optical 1 = Video/Data
Optical 2 = Data
Switch position 9: When switch is on, then 120 Ohm termination is applied
to data input.
Switch position 10: When switch is on, then 120 Ohm termination is applied
to data output.
Note: Switch positions 11 and 12 are not used and should be left in the off
position.
Alarm Switch Position 1 Position 2
(Rack card only) On not used Alarm Enabled
Off not used Alarm Disabled
Baud Rate Time 4 5 6
2400 4.73 mS On Off Off
4800 2.20 mS On On Off
9600 1.10 mS On On On
19.2K 620 uS Off On Off
38.4K 300 uS Off On On
57.6K 180 uS Off Off On
76.8K 150 uS Off Off Off
This table refers only to RS-485 protocol.
System Terminal Block Connections
The various input and output connections for the Pure Digital Fiberlink 3800
Series system are as follows:
Video Input or Output: BNC Connectors
RS-232
Position 2 Signal to be transmitted out over fiber
Position 4 Signal being received in from fiber
Position 1 Signal Common
7
RS-422
Position 2 Signal to be transmitted (+) out over fiber
Position 3 Signal to be transmitted (-) out over fiber
Position 4 Signal being received (+) in from fiber
Position 5 Signal being received (-) in from fiber
Position 1 Shield Ground
RS-485 4-Wire
Position 2 Signal to be transmitted (+) out over fiber
Position 3 Signal to be transmitted (-) out over fiber
Position 4 Signal being received (+) in over fiber
Position 5 Signal being received (-) in over fiber
Position 1 Shield Ground
RS-485 2-Wire
Position 2 Signal being transmitted or received (+) over fiber
Position 3 Signal being transmitted or received (-) over fiber
Position 1 Shield Ground
Data Input/Output Connector:
Data terminal block positions 1 through 6 can be used as data inputs or
outputs, depending on the protocol selected.
6
Switch position 9: When switch is on, then 120 Ohm termination is applied
to data input.
Switch position 10: When switch is on, then 120 Ohm termination is applied
to data output.
Note: Switch positions 11 and 12 are not used and should be left in the off
position.
Alarm Switch Position 1 Position 2
(Rack card only) On not used Alarm Enabled
Off not used Alarm Disabled
Baud Rate Time 4 5 6
2400 4.73 mS On Off Off
4800 2.20 mS On On Off
9600 1.10 mS On On On
19.2K 620 uS Off On Off
38.4K 300 uS Off On On
57.6K 180 uS Off Off On
76.8K 150 uS Off Off Off
This table refers only to RS-485 protocol.
System Terminal Block Connections
The various input and output connections for the Pure Digital Fiberlink 3800
Series system are as follows:
Video Input or Output: BNC Connectors
RS-232
Position 2 Signal to be transmitted out over fiber
Position 4 Signal being received in from fiber
Position 1 Signal Common
7
RS-422
Position 2 Signal to be transmitted (+) out over fiber
Position 3 Signal to be transmitted (-) out over fiber
Position 4 Signal being received (+) in from fiber
Position 5 Signal being received (-) in from fiber
Position 1 Shield Ground
RS-485 4-Wire
Position 2 Signal to be transmitted (+) out over fiber
Position 3 Signal to be transmitted (-) out over fiber
Position 4 Signal being received (+) in over fiber
Position 5 Signal being received (-) in over fiber
Position 1 Shield Ground
RS-485 2-Wire
Position 2 Signal being transmitted or received (+) over fiber
Position 3 Signal being transmitted or received (-) over fiber
Position 1 Shield Ground
Data Input/Output Connector:
Data terminal block positions 1 through 6 can be used as data inputs or
outputs, depending on the protocol selected.
6
5
System Switch Settings
The data interface circuit used in this product has external switches that are used
to configure the various signal options. These are preset to RS-232 at the time of
shipment. If changes are required, the positions of these switches must be changed
in accordance with the following table.
Data Input/Output Plug-in
Switches 1,2,3,7,8,9 and 10 are used to select the desired protocol. Positions for
these are as follows:
Protocol 12378910
RS-232 Off Off Off Off Off Off Off
RS-422/485 4-wire Off On Off Off Off On On
point-to-point
RS-485 2-wire Off On On On On On Off
auto xmit/receive
RS-485 4-wire
multidrop On On On Off Off On Off
RS-485 2-Wire
Zero xmit/receive On On Off On On On Off
Switches 4, 5 and 6 are used only in the RS-485 configurations to select the
auto time interval that the unit will wait before switching back to the receive
mode (tri-state). Refer to the table on the following page for switch positions.
Indicator LEDs and Alarm Circuitry
The Pure Digital Fiberlink 3800 Series transmitters and receivers have integral
indicator LEDs that monitor the state of the unit. Their status is as follows:
8
The card cage unit also provides an output to drive a model 6020 Alarm Sens-
ing Module which provides an audible tone and activates a set of contacts for
external signaling purposes.
POWER (Tx & Rx):(Green) Indicates that correct power has been applied.
LINK (Tx): OFF: Indicates no video detected on input BNC and no
active data detected to or from transmitter unit.
STEADY GREEN: Indicates video detected on input BNC
and no active data detected to or from transmitter unit
ON BLINKING OFF: Indicates video detected on input
BNC and active data detected to or from transmitter unit.
OFF BLINKING ON: Indicates no video detected on in-
put BNC and active data detected to or from transmitter unit.
LINK (Rx): OFF: Indicates no video detected over fiber and, as a
result, no video present on output BNC. No active data
detected to or from receiver unit.
STEADY GREEN: Indicates video detected over fiber and,
as a result, video present on output BNC. No active data
detected to or from receiver unit.
ON BLINKING OFF: Indicates video detected over fiber
and, as a result, video present on output BNC. Active data
detected to or from receiver unit.
OFF BLINKING ON: Indicates no video detected over
fiber and, as a result, no video present on output BNC.
Active data detected to or from receiver unit.
ALARM (Tx & Rx): ON: Video present (Only on rack card version)
OFF: Video not present (Only on rack card version)
8. Connect the various input signals to the proper positions on the removable
terminal blocks. Be certain to check all connections and assure that inputs
and outputs are not intermixed. Refer to the next section for the various
connections.
9. The system should now be operational.
NOTE: 3820 Card Only:
Optical 1 = Video/Data
Optical 2 = Data
INSTALLATION INSTRUCTIONS
Installation Procedure
The Pure Digital Fiberlink 3800 Series transmission systems are normally preset for
immediate use with the data protocol set to RS-232. If a different protocol is de-
sired, it can be easily selected using the flip switches located on the back panel of the
unit. (See table on next page.) There are indicator LEDs on the units for monitoring
purposes and various user selectable options for the various signals accommodated.
The following instructions describe the typical installation procedure and the function
of the LED indicators.
1. The various options, as already mentioned, have been preset, with data
protocol set as RS-232. If RS-422 or RS-485 (2
or 4 wire) protocol is desired instead, please refer
to instructions on the following page.
2. If connecting more than one Fiberlink unit on one
line (daisy chaining) while in either RS-422 or RS-
485 4-wire modes, you must set the unit to the RS-485 4-wire multidrop
mode.
3. Connect the video source to the video input BNC connector on
the transmitter unit.
4. Connect the video output BNC on the receiver unit to the coax cable BNC
connector.
5. Connect the fiber optic cable or cables between the two units.
6. Apply power to both Pure Digital Fiberlink units. Refer to Figure 1 for DC
power connections.
7. When power is applied, the green POWER LED will light, indicating the
presence of operating power. The green LINK LED should also light, indicat-
ing the presence of a received optical signal. Note that the card-cage version
will have a third red LED for indicating the presence of an alarm condition.
4
OPTICAL FIBER:
GENERAL:
Versions of the Pure Digital Transmission System are
available to operate with most multimode (MM) and
single-mode (SM) optical fibers. Be certain that the
correct size fiber is being used for the particular trans-
mitter/receiver combination.
Also be certain that the attenuation and bandwidth of
the fiber optic cable being used is within the range of
the system’s loss budget specifications.
The status of any of the LINK indicator LED should
provide the first clue as to the origin of any operation
failure. If this LED is off it usually means that the
fiber is broken or has too much attenuation.
Next, be certain that the input and output signal con-
nections are proper. Due to the number of positions,
it is possible that there may be wrong connections.
Finally, although multimode and single mode devices
may look the same, they will not operate properly to-
gether. Using the wrong device or fiber can easily add
more attenuation than specified, resulting in poor over-
all performance.
Even when installed exactly as directed, it is possible
that the data function may fail to operate properly
when using the Fiberlink units in either the RS-485
2-wire auto xmit/receive mode or the RS-485 4-wire
OPERATING POINTERS AND
TROUBLESHOOTING
9
DATA CIRCUIT:
Video:
Bandwidth (-3 dB) ......................... 20 Hz to 8 MHz
Input/output Impedance ................. 75 Ohms
Input/output Voltage...................... 1 V p-p nom., 1.3Vp-p max.
Differential Phase .......................... 1° typical
Differential Gain ............................ 1.5% typical
Signal to Noise Ratio ..................... 60 dB CCIR weighted
Signal Connectors .......................... BNC
Optical:
Operating Wavelength ................... 850nm, 1310nm, 1550nm MM/SM
Optical Fiber .................................. 62.5/125microns MM or
8-10/125 microns SM
Optical Connectors ........................ ST or FCPC
1 Fiber 2 Fibers 1 Fiber 2 Fibers
Wavelength Loss Budget (in dB) Distance* (in km)
850 MM N/A 0-18 N/A 0-2
1310 MM 0-10 0-15 0-5 0-15
1310 SM 0-19 0-20 0-45 0-50
1550 SM 11-26 11-28 40-65 35-90
*Note: Distance specifications are only approximate and are not guaranteed.
Operating loss budget must not be exceeded.
Misc:
Operating Temperature Range....... -35 to +75 degrees C
Operating Power ............................ 9 to 24 Volts AC or DC @ 8 watts (max)
3
CAUTION! The transmitting element in some versions of the Pure Digital Fiber-
link transceiver unit is a solid-state Laser Diode located in the optical connec-
tor on the unit. This device emits invisible infrared electromagnetic radiation
which can be harmful to human eyes. The radiation from this optical connector,
if viewed at close range without a fiber optic cable connected to the optical
connector, may be of sufficient intensity to cause instantaneous damage to the
retina of the eye. Direct viewing of this radiation should be avoided at all times.
If, after reviewing the above possibilities, the system is still not operating, please
contact the Customer Service Department for further assistance
MAINTENANCE
The Pure Digital Fiberlink 3800 Series transmission units have been manufac-
tured using the latest semiconductor devices and techniques that electronic
technology has to offer. They have been designed for long, reliable, and trouble
free service and are not normally field repairable. Should difficulty be encoun-
tered, Communications Specialties maintains a complete service facility to ren-
der accurate, timely and reliable service of all products.
The only maintenance that can be provided by the user is to ascertain that
optical connectors are free of dust or dirt that could interfere with light trans-
mission and that electrical connections are secure and accurate.
All other questions or comments should be directed to our Customer Service
Department. It should be noted that many “problems” can easily be solved by
a simple telephone call.
10
multidrop mode. If this problem occurs, it may be that
your units are attempting to interface with other manu-
facturers’ products that have resting states opposite to
the way in which the Fiberlink units are programmed.
(No standard exists.) You can compensate for this
condition by simply switching the polarities of the (+)
and (-) pins. To do this, first swap the Tx (+) and Tx (-)
pins with one another and then do the same for the Rx
(+) and Rx (-) pins. Make sure to do this on both the
transmitter and receiver units.
GENERAL INFORMATION
2
X Values: Y Values:
1 = 850 nm Multimode S = ST connector
3 = 1310 nm Multimode F = FCPC connector
7 = 1310 nm Single Mode
9 = 1550 nm Single Mode
Technical Specifications
Model Part Numbering Configurations:
Unit Type 1 Fiber Version 2 Fiber Version
Transmitter Box 3810-BXY 3820-BXY
Transmitter Card 3810-CXY 3820-CXY
Receiver Box 3811-BXY 3821-BXY
Receiver Card 3811-CXY 3821-CXY
Data/PTZ:
Protocols Supported........... RS-232, RS-422, RS-485 2-wire, RS-485 4-wire
Data Rate ........................... DC to 115 Kb/s
Signal Connectors .............. Removable terminal block
Introduction
The Pure Digital Fiberlink® 3800 series optical transmission system is a
configurable, adjustment-free transceiver that employs digital processing and
transmission techniques to convey 1-way video and bidirectional data signals.
The system is available in both one fiber or two fiber versions.
The use of digital encoding assures high-quality noise-free transmissions that
retain all of their initial parameters regardless of fiber optic cable attenuation.
In addition, an integral indicator LED is provided on each unit to continuously
signify the presence of an optical signal and thus, the proper operation of each
side of the system.
Note: 850 nm one fiber version not available.
WARRANTY
11
Communications Specialties, Inc. (CSI) warrants that for a period of three years
after purchase by the Buyer, the Pure Digital Fiberlink 3800 Series Transmis-
sion System will be free from defects in material and workmanship under nor-
mal use and service. A Return Material Authorization (RMA) number must be
obtained from CSI before any equipment is returned by the Buyer. All material
must be shipped to CSI at the expense and risk of the Buyer. CSI’s obligation
under this warranty will be limited, at its option, to either the repair or replace-
ment of defective units, including free materials and labor. In no event shall
CSI be responsible for any incidental or consequential damages or loss of prof-
its or goodwill. CSI shall not be obligated to replace or repair equipment that
has been damaged by fire, war, acts of God, or similar causes, or equipment
that has been serviced by unauthorized personnel, altered, improperly installed
or abused.
RMA numbers and repairs can be obtained from:
Communications Specialties, Inc.
55 Cabot Court
Hauppauge, N.Y. 11788 USA
Tel: (631) 273-0404 Fax: (631) 273-1638
www.commspecial.com
Email: [email protected]
Or in the Asia Pacific Region:
Communications Specialties Pte Ltd
100 Beach Road
#22-09 Shaw Tower
Singapore 189702
Tel: +65 6391 8790 Fax: +65 6396 0138
Email: [email protected]
Please have your serial number (located on the top label of the unit) available
when contacting us.
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