Links 1000CF v3.0 Installation Manual
• W A R N I N G •
Please refer to the System Installation Manual for information on limitations regarding
product use and function and information on the limitations as to liability of the manufacturer.
Security Products
Version 3.O
Specifications .................................................... 3
Cellular Communications .................................. 4
Sending an alarm .............................................. 4
Telephone Line Monitor ..................................... 4
Trouble supervision ........................................... 4
Emergency Phone Number ............................... 4
.......................................................................... 4
Using the Keypad ............................................. 5
Programmer Low Battery Indication .................. 5
Arranging for Cellular Service ........................... 6
Using the LINKS1000 Programmer ................... 6
Programming the LINKS1000 ........................... 7
Disconnecting the LINKS1000 Programmer ..... 8
Mounting the Cabinet ........................................ 9
Mounting the Antenna ....................................... 9
Wiring Connections ........................................... 9
“AC” Power Terminals ....................................... 9
Ground Connection ......................................... 10
Tamper Terminal ............................................. 10
Supervision of LINKS-to-Panel Connection ..... 10
LINKS SYS TBL Terminal ................................ 10
AUX IN Terminal .............................................. 10
LINKS PGMIn Terminal - Serial Input for Central
Station Telephone Number ............................. 10
Telephone Terminals ....................................... 11
LINKS RING Terminal Allows Panel to be
Downloaded via LINKS ................................... 11
Bat TBL Terminal ............................................. 11
AC TBL Terminal ............................................. 11
Battery Connections ........................................ 11
Jumper J1 ....................................................... 11
Jumper J2 ....................................................... 11
Preamble Section of Control Panel
Programming ................................................... 13
Communication Formats ................................. 13
PC4010, PC4020, PC4010CF and
PC4020CF Control Panels ............................... 14
PC5010 Control Panels ................................... 16
Power-up Procedure ....................................... 16
Performing a LINKS Test Transmission ........... 17
“On Air” Indication ........................................... 17
20-minute Transmission Cutoff ........................ 17
Reading trouble conditions on the
LINKS1000 via the LINKS1000 Programmer .. 20
are trademarks of the DSC Group of Companies.
HOOKUP DIAGRAM - PC4010/PC4020/PC4010CF/PC4020CF/PC5010
The following is a description of various terms used with regards to cellular technology.
Electronic Serial Number (ESN)
The ESN is the unique serial number of a cellular phone. It is used by the cellular network to track calls
and increment billing. The ESN is stored at the time of manufacture and cannot be reprogrammed. This
number, in either hexadecimal or decimal, must be loaded into the database of the cellular carrier before
service can begin. The ESN can be found on the shipping box and on the heat sink of the LINKS1000 board.
Cellular Phone Number and Area Code
A 10 digit number (3 digit area code and 7 digit directory number ) identifying the cellular telephone. Do not
enter the phone number of the central monitoring station as the cellular phone number when programming the
Initial Paging Channel
A three digit number that specifies which ‘Side’ carrier you have contracted for service. Each cellular service
area only has two sides, A or B. The initial paging channel for Side A is ‘333’ and for Side B is ‘334’.
System ID
Also called the Home Access ID, this 5 digit number identifies the customer's predefined ‘Home System’. This
number refers to a geographic area and is used by the cellular carrier to determine if the unit is ‘Home’ or in
Access Overload Class
This is the number that specifies the level of priority of the cellular call. There is no correlation between this
number and the level of cellular service unless there is a network emergency.
Group Identification Mark
This number is factory programmed and specifies how many bits of the System ID are compared when
processing signals. The Group Mark ID for LINKS1000 is set at 10. This number will make the LINKS1000
compatible with all North American networks.
Preferred System Mark
This number is determined by the Initial Paging Channel and refers to which system, A or B, is scanned for
Using cellular service outside of one ‘Home’ area. Usage charges are higher when Roaming.
The LINKS1000 Cellular Alarm Transmitter enhances the protection provided by a security system by
providing a reliable backup to the control panel’s normal telephone communications with the monitoring
station. The LINKS1000 works with the DSC Panels described in the Specifications below.
If the control panel is unable to complete an alarm transmission through the normal telephone line, due to any
line problems, the LINKS1000 will be activated and will transmit the alarm communication over the cellular
network. The LINKS1000 works automatically.
The LINKS1000 has been designed for simple and straightforward installation. Wiring connections are made
directly between the LINKS unit and the security control panel. The DSC panels require only minor changes
in their Programming Sections.
The LINKS1000 can only be used as the backup communication channel for fire alarm applications.
For commercial burglary applications, the attack resistant enclosure is required (Model CMC-1 P/N
Compatible control panels for Commercial Fire Listed application
• DSC PC4010CF software version 3.2 or later
• DSC PC4020CF software version 3.2 or later
Compatible control panels for Commercial Burglary Listed application
• DSC PC5010
• DSC PC4010
• DSC PC4020
Communication Method
• Amps cellular telephone network
RF Power Output
• 3.0 Watts maximum
• 3 - 5 dB gain, TNC connector
• 12 volt 7 Ah minimum rechargeable gel-cell type battery
• 16.5 VAC, 40 VA
• 11" × 11.8" × 3.3" (279 mm × 300 mm × 84 mm)
• 6.5 lbs. (3 kg)
A security system cannot prevent emergencies. It is only intended to alert you and, if included, a monitoring
station, of an emergency situation. Security systems are generally very reliable but they may not work under
all conditions and they are not a substitute for prudent security practices or life and property insurance. Your
security system should be installed and serviced by qualified security professionals who should instruct
you on the level of protection that has been provided and on system operations.
Cellular Communications
All cellular telephones, including the LINKS1000, must ‘register’ with the cellular network. ‘Registration’ is simply a
handshake, sending ESN and Telephone number, between the cellular switching station and the cellular telephone.
This is done upon power up of the LINKS1000 and randomly once a day. If the phone does not register the network
will not complete a call. Tower signal strength, also called RSSI (receive signal strength indication) is updated
approximately every 4-5 seconds. RSSI is indicated as a go/no go visible via the RSSI LEDs (L3, L4, L5, L6).
Sending an alarm
Before dialing the central station, all DSC alarm controls perform a telephone ‘line-test’. This is done via the
control unit using a series of off-hook and on-hook transitions to verify dial-tone. This takes 30 seconds.
The control panel ‘line-test’ feature will only determine a telephone line is inoperative when it is attempting to
send an alarm. With a LINKS1000 connected, the control panel will send the central station telephone number,
in a digital format, from the PGM output of the control panel to the PGMIn input of the LINKS1000. The
LINKS1000 then accesses the cellular telephone network and begins dialing. Once a suitable channel is
established the LINKS1000 switches an onboard relay and establishes a connection between the TIP and
RING terminals on the control panel and the T1 and R1 terminals on the LINKS1000.
With cellular communications now open to the central station receiver, the panel will detect ‘handshake’. The
alarm is sent. If the message is received, ‘kiss-off’ is sent, just as if it were communicating over a standard
telephone line. Once the panel has completed the transmission, the control panel ‘hangs up’. The LINKS1000
then detects the loss of current across T1 and R1 and sends the END key to the cellular network.
Telephone Line Monitor
The Telephone Line Monitor is a separate feature integral to DSC or Sur-gard control panels. The TLM looks
for a 30 second loss of telco line voltage. With a LINKS1000 connected and TLM signaling enabled, a service
outage would trigger the panel to begin dialing though the LINKS1000. Dialing will begin after the TLM timeout and ‘line-test’ are complete. This should take 1 minute.
Trouble supervision
By default the trouble supervision jumper J1 is OFF (removed) and there are three separate trouble outputs:
AC trouble (AC TBL), Battery trouble (BAT TBL) and System trouble (SYS TBL).”
The AC TBL terminal and Bat TBL terminals are each used to indicate their respective troubles. The LINKS1000
SYS TBL will activate for all other troubles. These outputs are connected from the LINKS1000 terminals to
separate zones on the control panel. The zone(s) connected to the BAT TBL and SYS TBL should be
programmed as LINKS Supervisory. The zone(s) connected to the AC TBL should be programmed as AC
Trouble. Under normal conditions, the TBL outputs of the LINKS1000 are “open”. When one or more of the
six monitored trouble conditions are present, and the corresponding time-out has expired, the respective
output will be pulled to ground. The connection from the LINKS1000 TBL output to the control panel zone,
forces the zone to ground. The panel now has a trouble it must send and the dialing sequence begins.
Typically, trouble signals are sent via the telco line. If the telephone line is not operational, the panel will send
the signal via the LINKS1000 and the cellular network.
This configuration is required on UL Listed systems.
Emergency Phone Number
This number is programmed into the LINKS1000 and will be dialed when the AUX IN terminal is shorted to ground.
To program the number, enter the emergency phone number into the LINKS1000, exactly as it would be dialed
on a cellular phone. To use this feature, place an ordinary handset in parallel with the panel on the LINKS1000
T-1, R-1 terminals and connect a normally open push-button across the AUX IN and Ground terminals.
NOTE: This input is a 24-hour, silent terminal and the Panic phone call will be connected through
the cellular network.
Install 4 AA batteries in the LINKS1000 Programmer, being sure to note proper orientation. If the batteries are
installed incorrectly, the Programmer will not function.
NOTE: The software version for the programmer should be 1.40.
Using the Keypad
Operation of the Programmer is as simple as scrolling through the menu to find the desired programming
✱ ] Key to select the option.
option and pressing the [✱
• Use the
keys to scroll through the menu displays to locate the desired menu or programming item
✱ ] Key to select
• When the screen displays the desired menu item or programming option, press the [✱
the item or option
• The Programmer will automatically shut itself off if there is no keypad activity for a period of 2 minutes.
NOTE: The LINKS1000 will not function until the Programmer is unplugged from it.
Connect cable to LINKS1000
programming jack.
Programmer Low Battery Indication
If the Programmer’s batteries begin to run low, this message will be displayed:
The low battery message will remain on the screen for 3 seconds or until it is acknowledged by pressing any
key while it is displayed. If a key is pressed while the message is displayed, the message will not reappear
for the rest of the programming session.
If the message is not acknowledged, it will be removed from the screen after 3 seconds; the next time a key
is pressed, the low battery message will again be displayed.
Arranging for Cellular Service
In order for the LINKS1000 to communicate via the cellular telephone network, an account must be set up
with a cellular network operator. The ‘account’ is simply a matter of establishing the billing information for
the cellular service. In return, the cellular carrier will provide you with the cellular telephone number. Cellular
service may vary in price and coverage. Check with your cellular service provider for area coverage maps
and service charges.
Any cellular telephone service provider may be used as the LINKS1000 is compatible with all AMPS type
cellular telephone networks. There are a maximum of two separate network operators in a given market. They
are called non-wireline carriers (A-Side) and wireline carriers (B-Side). Choose the carrier and rate plan that
best fits the application.
DSC is not a cellular service provider, however the LINKS1000 is licensed to use the ‘HELPTEL’ cellular service
rate offered by LINDSAY Communications of Loeminster, Massachusetts. This coverage is virtually nation
wide, using exclusively A-side carriers, and offers service rates that are designed for cellular applications
requiring minimal air time. (In most applications the LINKS1000 is configured to activate only when the alarm
is set and the protected premises experiences an unanticipated loss of dial tone.) LINDSAY Communications
can be reached at 1-800-878-9898. For answers to any other questions concerning cellular activation call 1800-355-3630.
NOTE: When using LINDSAY Communication for cellular service, pay close attention to the PREAMBLE
Section when programming the control panel.
Using the LINKS1000 Programmer
The LINKS1000 Programmer is used to enter the required cellular network parameters into the LINKS1000.
If the parameters are not entered correctly, the LINKS1000 will not operate.
AC power must be applied to the LINKS1000 in order to program any data.
Connect the modular connector of the Programmer to the modular jack on the LINKS1000. Press any key to
activate the Programmer. The LCD screen will light up.
NOTE: If the screen does not light up, check to see if 4 AA batteries were correctly installed in the back
of the Programmer.
The LINKS1000 Programmer is menu driven (see Table 1 for a list of menu messages):
• use ‘up’ and ‘down’ arrows to scroll through the various menu fields
✱ ] key to select it
• when the desired field is displayed, use the [✱
• or use the numbers shown in parentheses to go directly to the desired menu or item
• use the [#] key to enter data and exit the section.
Before a cellular service provider will give the Cellular Phone parameters, you must first give the LINKS1000
Electronic Serial Number (ESN). The ESN is found on the LINKS itself (in hexadecimal), or can be read via the
Programmer (in hexadecimal).
If the ESN was not found on the LINKS1000, scroll to the “Read LINKS” menu. Select the ESN and the LCD
will display the ESN in hexadecimal form.
Record the ESN here:
l_____l_____l - l_____l_____l_____l_____l_____l_____l
The following parameters must be obtained from the Cellular carrier:
• The cellular telephone number for the LINKS
l_____l_____l_____l -l_____l_____l_____l -l_____l_____l_____l_____l
• The System I.D.
• The Initial Paging Channel
Programming the LINKS1000
Step 1. Programming the Cellular Telephone Number
✱ ] to select. Scroll to “LINKS Phone #” and press [✱
✱ ] to select.
Scroll to “Write LINKS” and press [✱
Enter the area code and phone number for the LINKS. Press [#] to store and exit.
Step 2. Program the Cellular Network Parameters
✱ ] to select. Enter the five digit
While still in “Write LINKS” menu, scroll to “System I.D.” and press [✱
System I.D. number. Press [#] to store and exit.
✱ ] to select. Choose either “A SIDE 333” or “B SIDE 334” using
Scroll to the “Initial Page” and press [✱
keys. Press [#] to store and exit.
✱ ] to select. (This is automatically set by the Programmer.)
Scroll to “Access Class” and press [✱
Press [#] to store and exit.
Step 3. Enabling Downloading
✱ ] to select. Using the
While still in the “Write LINKS” menu, scroll to “Downloading?” and press [✱
keys, choose either “Enabled” or “Disabled”. Press [#] to store and exit.
Only LINKS1000 version 2.10 or higher will support this function. This option will display on
non-supported versions, but will not be accessible.
NOTE: With the Downloading feature “Enabled,” the LINKS1000 will answer ANY call placed to the
LINKS1000 cellular telephone number, therefore generating cellular charges. If Downloading via the
LINKS1000 will not be used, the Downloading feature must be disabled.
Step 4.
AC Failure Reporting Option
The option of sending an AC failure is done via the AC Failure reporting display. Scroll to the ‘AC
✱ ]. Press the
Tbl Sent?’ screen and press [✱
keys to toggle either ‘Enable’ or ‘Disable’.
Press [#] to store and exit.
With the option ‘Enabled’ the LINKS1000 WILL report loss of AC power.
With the option ‘Disabled’ the LINKS1000 WILL NOT report loss of AC power.
Only LINKS1000 version 2.20 or higher will support this function. This option will display on
non-supported versions, but will not be accessible.
Step 5. Emergency Phone Number
The AUX IN terminal provides a Panic type alarm to the LINKS1000. When this terminal is briefly shorted
to ground, the LINKS1000 will dial the phone number that is programmed in the emergency phone
number location.
Only LINKS1000 version 3.0 or higher will support this function. This option will display on
non-supported versions, but will not be accessible.
NOTE: This input is a 24-hour, silent terminal and the Panic phone call will be connected through the cellular
Select the LINKS Write menu, then select the Emergency Phone Number item.
Enter the phone number exactly as it would be dialed on a standard cellular phone. Press [#] to exit
the item and store the phone number into the LINKS1000 memory. (See “How the LINKS1000
Works” for instructions on how to connect a phone to the LINKS1000 for use with the emergency
phone number.)
Disconnecting the LINKS1000 Programmer
Step 1.
Scroll to “Main Menu”.
Step 2.
Press [#], wait for the display to go blank.
Step 3.
Disconnect the modular cord from the LINKS1000. Done
NOTE: Unplug the Programmer from the LINKS1000 when finished programming. The LINKS1000 will
not operate when the Programmer is plugged in.
Table 1 — List of LINKS1000 Programmer Menu Messages
Main Menu
(0) Write LINKS
(0) LINKS Phone #
(1) Trouble
See Table 3 on page 28
for Trouble Messages
and explanations
(2) Read LINKS
(0) LINKS Phone #
(1) System I.D.
(1) ESN
(2) Initial Page
(2) System I.D.
(3) Access Class
(3) Initial Page
(4) Downloading
(4) Access Class
(5) AC TBL Sent
(5) Group ID Mark
(6) Emergency Phone #
(6) Prefrd Sys Mark
(7) Downloading
(8) AC TBL Sent
(9) Emergency Phone #
Mounting the Cabinet
It is important to mount the LINKS1000 as close to the DSC alarm control panel as possible. 3 feet is
the recommended maximum distance between the two devices. If the devices are mounted in an under-over
arrangement, always mount the LINKS1000 on top. It is recommended that all wiring between the control panel
and the LINKS1000 be in a tamper and attack-resistant conduit.
Keep in mind the LINKS1000 antenna must be mounted above ground level. If necessary, Antenna
Extension Kits are available from your distributor. Remember cellular likes height. The antenna should be
installed in a physically secured location to avoid tampering.
As much as reasonably possible the LINKS1000 should not be located near sources of interference. These sources
include EMI generated by televisions or heavy electric motors such as those found in heating or air conditioning units.
Remove printed circuit board and wall mounting hardware from cardboard retainer inside cabinet. Before attaching
the cabinet to the wall, press the white nylon mounting studs through the holes in the back of the cabinet.
Mounting the Antenna
NOTE: An antenna should always be connected to the LINKS1000 whenever it is operated. The unit will
not function properly if an antenna is not installed.
Before attaching the antenna, first secure the TNC connector and cable attached to the LINKS unit in the hole
in the top of the cabinet using the hardware provided. Ensure the star washers make solid electrical contact
with the metal cabinet; refer to the illustrations below.
The antenna should be mounted as high above ground level as possible while at the same time taking care not
to place the antenna under a Radio Frequency shield of any kind. I.E. do not mount the antenna directly beneath
a metal roofing over hang. Cellular works best when in an unobstructed “line of sight” to the cellular antenna site.
Wiring Connections
Do not connect the transformer or battery until all other wiring,
including the antenna connection, has been completed and
checked. Incorrect wiring connections may cause the LINKS1000
unit to operate improperly.
“AC” Power Terminals
For proper operation, the LINKS1000 requires its own transformer. Do not use the control panel transformer to
power the LINKS1000. Do not connect the transformer or battery until all other wiring is complete. Use a 16.5 VAC
transformer with a minimum 40 VA rating to supply AC power to the LINKS1000. Do not connect the transformer
to an outlet that is controlled by a switch. UL Listed systems should employ the ATC-Frost PIN FTC3716 transformer.
NOTE: All terminals are power limited except for the battery leads. All power limited wiring shall be
installed using FPL, FPLR, FPLP or permitted substitute cable.”
Ground Connection
Connect the LINKS “AUX-GND” terminal to the control panel “GND” terminal. AUX- or KEYPAD BLACK and ZONE
COMMON are also good ground connections. A good ground connection is essential for proper operation.
Connect a ground cable from the Cabinet Ground connection to an earth ground, such as a copper cold water
pipe, by the shortest and most direct route. Ensure that the cold water pipe connection provides path to ground.
Do not make the ground connection to a plastic cold water pipe!
Tamper Terminal
The “TMP” terminal on the LINKS1000 is provided for a cabinet tamper switch. If a tamper switch is not used,
then a wire jumper must be connected between the “TMP” and “GND” terminals.
Supervision of LINKS-to-Panel Connection
To make use of the cable tamper alarm simply connect an end-of-line resistor, of the value indicated on the
hookup diagram, across the GND terminal and the LINKS SYS TBL terminal. If the cable between the LINKS
and the control panel is cut, a fault will be presented to the LINKS1000 supervisory zone.
NOTE: Resistor must be installed in LINKS cabinet.
When jumper J1 is shorted, this terminal is used to report all troubles to the attached control panel, including
the AC and Battery troubles. The AC TBL and BAT TBL terminals will be disabled when J1 is shorted.
When jumper J1 is open, the AC TBL and BAT TBL will be reported at their respective terminals. All other
troubles will be reported through the LINKS SYS TBL terminal.
The LINKS SYS TBL terminal will switch to ground whenever a trouble condition is present on the LINKS unit. The
terminal will remain switched to ground for as long as a trouble condition exists. This feature is used to report LINKS
trouble conditions through the control panel via a zone programmed for LINKS Supervision (see programming
guide for instructions). Also, when a resistor is connected across GND of the LINKS and the SYS TBL of the LINKS,
then connected to the designated LINKS supervision zone, the control panel will report an open in the connection
between the LINKS and the control panel (see instructions for correct resistor value).
When using Normally Closed Loops, connect a DSC Model RM-1 Relay to the control panel and the LINKS as
described below. The Alarm and Reporting Codes programmed for the zone connected to the yellow lead of the
RM-1 will be used to report a general trouble and restore on the LINKS. Note that the PC5010, PC4010, PC4020,
PC4010CF and PC4020CF always use an end-of-line resistor regardless of how zone supervision is programmed.
RM-1 Lead
Control Panel Zone terminal
Control Panel COM terminal
Control Panel AUX terminal
LINKS PGM terminal
No connection
AUX IN Terminal
When this terminal is temporarily shorted to ground, the LINKS1000 will dial the phone number that is
programmed in the emergency phone number position. This phone number has to be a direct access line, it
can not be dialed to a PBX and then into an extension.
NOTE: This input is a 24-hour, silent terminal and the Panic phone call will be connected through the cellular network.
If this input is triggered, the panel will be disconnected from the cellular network. Please use this input carefully.
LINKS PGMIn Terminal - Serial Input for Central Station Telephone Number
The connection between the control panel PGM and the LINKS1000 PGMIn is very important. It carries the
telephone number of the central station to LINKS, the LINKS then dials that number through the cellular network.
The PC4010, PC4020, PC4010CF and PC4020CF require a 1K ohm resistor connected between the terminals
on the control panel, PGM and AUX+ or PGM and AUX- terminals for v3.0 and up. The PC5010 require a 5.6K
ohm resistor. Refer to hook up diagram in this manual.
The maximum distance (wire length) the LINKS should be mounted from the control panel is 3 feet.
Telephone Terminals
From an RJ31-X plug, make the following connections:
Conductor from RJ31-X Plug
RED .............................................. LINKS RING terminal
GRN ................................................ LINKS TIP terminal
GRY .......................................... control panel R-1 terminal
BRN .......................................... control panel T-1 terminal
Also, connect the following jumpers between the LINKS and control panel:
Control Panel
TIP ............................................................. T-1
RING ........................................................... R-1
LINKS RING Terminal Allows Panel to be Downloaded via LINKS
Whenever the LINKS phone number is called, the RING terminal will activate. This feature may be used to make
the control panel answer an incoming call via the cellular telephone network.
PC5010, PC4010, PC4020, PC4010CF, PC4020CF
Connect the LINKS RING terminal to an available zone terminal on the control panel. Refer to the “Programming”
section of this manual for information on programming the zone for the “LINKS Answer” option.
Bat TBL Terminal
When jumper J1 is shorted, this terminal will be disabled, and the battery trouble will be reported to the control
panel through the LINKS SYS TBL terminal.
When jumper J1 is removed, this terminal will provide the output for the LINKS1000 battery trouble indication
to the control panel. The terminal will switch to ground after the time-out delay for the battery trouble has
expired, and remain at ground until the battery is restored. A missing battery will also cause the same
conditions. Connect to a separate control panel zone that is programmed as LINKS Supervisory. A single endof-line resistor MUST be used on this zone. (See hookup diagram for correct resistor value.)
AC TBL Terminal
When jumper J1 is shorted, this terminal will be disabled, and the AC trouble will be reported to the control
panel through the LINKS SYS TBL terminal.
When jumper J1 is removed, this terminal will provide the output for the LINKS1000 AC trouble indication to the control
panel. The terminal will switch to ground after the time-out delay for the AC trouble has expired, and remain at ground
until the AC is restored. Connect to a separate control panel zone that is programmed as LINKS Supervisory. A single
end-of-line resistor MUST be used on this zone. (See hookup diagram for correct resistor value.)
Battery Connections
Do not connect the battery or the transformer until all other wiring is complete. Connect the RED battery lead to the
positive battery terminal and the BLACK lead to the negative battery terminal. If the battery connection is made in
reverse, the solid state battery fuse will open. If the fuse opens, disconnect the battery and wait for approximately
40 seconds for the fuse to reset. Note that the unit will not power up on battery power only; AC power must first be
present (with J2 open). When J2 is shorted, only the DC source connected to the battery leads should be present.
Jumper J1
Jumper J1 is used for the LINKS1000 trouble outputs. When J1 is shorted, all of the LINKS1000 troubles will
activate the SYS Tbl output after their respective delays have expired. When J1 is open, the LINKS1000 AC
Tbl and Bat Tbl terminals are used to indicate their respective troubles instead of the SYS Tbl terminal. All other
LINKS1000 troubles will activate the LINKS SYS Tbl terminal.
For UL Listed Systems the jumper J1 is defaulted to the OFF position.
Jumper J2
Jumper J2 is used to allow the LINKS1000 to be powered only by a DC source. Jumper J2 must remain shorted
for the entire time the LINKS1000 is powered by the DC source. When all wiring is complete, place the jumper
on J2 and then connect the DC source (observing correct polarity) to the battery leads of the LINKS1000.
Before permanently mounting the LINKS1000 in it’s final location, verify that it is working as it should by
following these steps:
Step 1: Make all connections between the LINKS and the control panel.
Step 2: Power up the control panel and the LINKS1000.
Step 3: Using the four LED’s on the upper left-hand side of the LINKS1000, find the position that gives the
LINKS the best signal strength:
L3 (top, green LED) lit: indicates best received signal strength. Mount the LINKS here.
L4 (second green LED) lit: indicates acceptable signal strength. The LINKS may be mounted here.
L5 (yellow LED) lit: indicates poor signal strength. DO NOT mount the LINKS here as it will probably not
be able to communicate properly.
L6 (red LED) lit: indicates very bad or no received signal strength. DO NOT mount LINKS here, as it will
not be able to communicate.
If a suitable location is not available within the maximum 3 ft. wire length from the control panel, obtain an Antenna
Extension Bracket kit from your DSC / Sur-Gard supplier. Each kit contains an extension cable, a mounting
bracket, instructions, and all required mounting hardware. Three lengths of extension cable are available:
Extension Kit
Length of Cable
3 feet (0.91 m)
15 feet (4.57 m)
25 feet (7.62 m)
Use only the Extension Kits to extend the mounting range of the antenna. Do not cut or splice the
extension cable. The maximum distance between the LINKS and the antenna is 25 feet (7.62 m) as obtained
by using the LAE-25 Extension Kit. Make sure the antenna is in a physically secured location to avoid tampering.
Secure the TNC connector from the Extension Kit to the mounting bracket, ensuring that the star washers make
solid electrical contact with the mounting bracket.
Remove the antenna from the LINKS cabinet and connect the extension cable to the TNC connector on the
cabinet. Secure the antenna to the TNC connector mounted on the Extension Kit Mounting Bracket.
Locate the mounting bracket and antenna away from possible sources of electrical interference. Moving the
antenna just a short distance will likely be adequate. Temporarily secure the mounting bracket in the new
location and repeat steps 1 - 3 above. If the test gives a good result, perform a test transmission as described
in the “Operations” section of this manual.
If the test is successful and the cellular transmission is completed without a Loss of Cellular Communication
trouble, permanently secure the mounting bracket and antenna at the new location.
If the cellular transmission is not completed successfully or there is a trouble indication, relocate the mounting
bracket and test the LINKS again.
NOTE: Do not secure the mounting bracket in a way that would stretch or strain the extension cable.
Rather than try to strain the cable to reach a desired location, use a longer cable. When installation is
complete, secure the extension cable so that it does not dangle or hang loose from the cabinet or
mounting bracket.
When a control panel is programmed for LINKS1000, the PGM output is dedicated to LINKS communicator
and cannot be used for other functions.
Preamble Section of Control Panel Programming
The LINKS1000 receives the telephone number to be dialed from the alarm control panel telephone number
memory location. The ‘data’ is sent via the PGM/PGMIn connection. The ‘Preamble’ programming section of the
alarm control allows for flexible dialing strings. This helps the installer use the most effective cellular plan available.
The ‘Preamble’ allows the installer to add a prefix or an area code to the telephone number should the cellular network
need additional dialing digits. In some areas, dialing the central monitoring station may only require seven digits when
using land line, while cellular requires an area code plus seven digits when accessing the network. Still other areas
may require what is known as ‘1plus’ dialing. That is, the cellular network requires a ‘1’ be added to the local telephone
number. And of course, if the cellular telephone is setup in ‘Roam’ mode a Preamble may be required. ‘Roam’ is a
when a cellular phone is being used outside of the area where the telephone number originated.
If there is a question as to whether a ‘Preamble’ is needed, simply dial the central station from the premises
land line, then, dial the number using the installed LINKS1000. If both calls connect, do not add a ‘Preamble’.
To add a ‘Preamble’ simply enter the additional digits required in the location provided (see Control Panel
Programming section). The ‘Preamble supports up to 4 digits and they will always be dialed in front of the telephone
number in the control panel memory. Factory default of ‘Preamble’ location is FFFF. Program all unused digits as “F”.
If Lindsay Communications is used for cellular service, a ‘Preamble’ may be required (see Helpful Hints). This
is because Lindsay’s cellular telephone numbers originate in Boston, Massachusetts. And, unless the
LINKS1000 is being connected in Boston, Mass., the device will be in ‘Roam”.
Some Helpful Hints:
Never enter a Preamble if the central station telephone number is a 1-800 number. This would result in the
control panel sending 1-800-1-800-xxx-xxxx when utilizing the LINKS1000.
Never enter a ‘Preamble’ if the telephone number of the land line telephone number to the central station is
a long distance number. Again, this would result in 1-508,1-508-xxx-xxxx being sent to the LINKS1000.
Communication Formats
Due to limitation of the cellular telephone network, only certain communication formats are recommended
when the LINKS1000 is utilized:
• Any format communicating at 10 bps or 20 bps
• SIA format
• Sur-Gard 4/3
Not Recommended: • Any format communicating at 40 bps
• Contact ID
UL has verified compatibility with the Sur-Gard SG-MLR2-DG receiver.
PC4010, PC4020, PC4010CF and PC4020CF Control Panels
NOTE: The DSC PC4010, PC4020 or PC4020CF control panel must be equipped with software version 3.2.
The maximum permissible entry delay time programmed on the panel should be 30 seconds.
LINKS Toggles
LINKS module enabled. This selection must be enabled for the LINKS module to
operate with the PC4010/PC4020/PC4010CF/PC4020CF
LINKS module disabled
Note: Once the LINKS module is enabled, the Main PGM output is automatically
configured for LINKS operation and should not be used for any other function. The
PGM output cannot be reprogrammed until the LINKS module is deactivated.
PC40X0 v3.0: 00-04-04-04
PC40X0 v3.0: 00-04-04-04
Yes: A test transmission is used for the LINKS module
No test transmission is used for the LINKS module
Note: The LINKS Test Transmission Code is programmed in the Reporting Code Section
Yes: Zone 1 enabled for LINKS supervisory
Zone 1 not enabled for LINKS supervisory
Note: When this option is enabled, the PC4010/PC4020/PC4010CF/PC4020CF will
automatically reprogram the Zone Type and Options for Zone 1 for LINKS
Supervisory functions. When enabled, Zone 1 will be used to monitor the
LINKS module for trouble conditions. The Zone Type cannot be changed
until the LINKS Supervisory option is disabled. Note that an end-of-line
resistor must be used with this zone.
Yes: Zone 2 LINKS Answer Enabled
Zone 2 LINKS Answer Disabled
Note: When this option is enabled, the PC4010/PC4020/PC4010CF/PC4020CF will
automatically reprogram the Zone Type and Options for Zone 2 for LINKS Answer
functions. When enabled, Zone 2 will be used for downloading through the LINKS
module. The Zone Type cannot be changed until the LINKS Answer option is
disabled. Note that an end-of-line resistor must not be used with this zone.
Enter the LINKS Module programming section by entering [ ][8][Installer’s
Code][0][04][4]. Program the following in the LINKS Module programming section:
PC40X0 v3.0: 00-04-04
LINKS Telephone Numbers
First Phone Number. When the LINKS module is enabled, this telephone number
will be used to back up the first land line telephone number should the land line fail
the dial tone search.
PC40X0 v3.0: 00-04-04-00
Second Phone Number. When the LINKS module is enabled, this telephone
number will be used to back up the second land line telephone number should the
land line fail the dial tone search.
PC40X0 v3.0: 00-04-04-01
PC40X0 v3.0: 00-04-04-02
Third Phone Number. When the LINKS module is enabled, this telephone number
will be used to back up the third land line telephone number should the land line fail
the dial tone search.
DLS (Downloading) Number. When the LINKS module is enabled, this telephone
number will be used to download via LINKS1000 cellular.
PC40X0 v3.0: 00-04-04-03
LINKS AC Zone Type
Connect a LINKS AC TBL terminal to a hard wired panel zone. In the installers programming, define that zone
as a LINKS AC (30) zone type.
Programming Telephone Numbers
Enter the telephone number the way it would be dialed on a telephone. The total number of digits, including
dial tone searches, must not exceed 31. Note that a “D” for a dial tone search is automatically programmed
at the beginning of the telephone number. Note: There must be a dial tone search programmed into the
telephone number for the LINKS module to operate.
When a telephone number is entered, press the [#] key to save the number in the system’s memory.
PC4010/PC4020/PC4010CF/PC4020CF Telephone Entry Options Menu
Press the [ ] key to enter the Telephone Entry Options Menu. Use the arrow keys to scroll through the list of
menus, and press the [ ] key to select the menu displayed on the keypad screen. Or, enter [0] or [1] to select
one of the menu options described below:
[0] Save After entering a telephone number, instead of pressing the [#] key, this option may be selected to
save the number in the system’s memory.
[1] Dial Tone Selecting this option will add a 2-second dial tone search to the telephone number. The dial
tone search will be represented by a “D” in the telephone number display. A dial tone search forces the
control panel to wait for a dial tone before dialing a telephone number.
The following PC4010/PC4020/PC4010CF/PC4020CF Menu Items are not used while programming
telephone numbers for LINKS operation. Do not select these items while programming telephone
numbers for LINKS operation, as adding pauses or the DTMF digits may result in improper dialing.
[2] Pause 2 Seconds
[4] DTMF
[3] Pause 4 Seconds
[5] DTMF #
Transmission Cycle Days
Enter the number of days between test code communications. Valid entries are from
001 to 255; the default setting is 030.
PC40X0 v3.0: 00-04-04-05
Transmission Cycle Time
Enter the time of day for the test transmission. Enter the time in the 24-hour clock
format, where the first 2 digits are the hours ranging from 00 to 23, and where the
last 2 digits are the minutes ranging from 00 to 59. The default setting is 0000.
PC40X0 v3.0: 00-04-04-06
LINKS Trouble Reporting
Program Zone 1 trouble reporting code, and restoral reporting code.
PC5010 Control Panels
NOTE:: The DSC PC5010 panel must be equipped with software version 1.0 or later.
The maximum permissible entry delay time programmed on the panel should be 30 seconds.
Programming the PC5010 for LINKS1000 Operation
Section [009]
Section [001]
- [004]
Section [320]
- [323]
Section [349]
Section [352]
Section [361]
- [368]
Section [390]
- [392]
Section [490]
Section [703]
LINKS Enable:
Program [16] into section 009. This will reserve the PGM1 output for LINKS1000
communications. Only PGM1 will support LINKS1000 operation.
LINKS Supervisory:
Choose the zone that will be used to report the 24 hour LINKS1000 supervisory alarms
[section 001 to 004]. Program that zone as [09].
Downloading via LINKS1000:
If Downloading via cellular is to be used, choose a zone to perform LINKS Answer. Program
the chosen zone as [24]. This will force the panel to answer an incoming cellular call.
LINKS Trouble Reporting Code:
In section 320 to 323, enter the desired reporting code for LINKS1000 Trouble reporting. Use
same zone as LINKS supervisory.
TLM Trouble Reporting via LINKS:
Go to section 349. Find TLM Trouble Code (via LINKS). Enter the desired reporting code. The
Restoral is contained in section 350, this will not be sent via the LINKS.
LINKS Test Transmission:
Program the LINKS Test Transmission code in section 352. The LINKS will follow the land line
test transmission schedule.
LINKS Call Direction Options:
Go to sections 361 to 368. Determine which signal types will be sent via LINKS1000. Section
380, zone light [7] dictates whether the LINKS will be used as backup or primary
communications. When set to primary, the LINKS will always place a cellular call on signals
so identified in Call Directions.
LINKS Preamble:
Program sections 390 to 392 with preambles (if necessary) for each communicator
outbound telephone number.
LINKS Downloading Preamble:
If necessary, program section 490 with the LINKS Preamble for the Downloading.
Dialling Delay:
Program section 703 with 010. This places a necessary delay between LINKS (and all other)
dial attempts.
Power-up Procedure
Apply power to the transformer and wait approximately 10 seconds. If LED1 begins to flicker once every 4 to
5 seconds, check the following:
• Ensure that the PGMIn and GND terminals are properly wired
• Ensure that the Control Panel is programmed for LINKS operation
NOTE : The LINKS1000 will not operate if the AC is off and the battery is low. The LINKS1000 should not
be powered up without the antenna attached to the unit.
Before testing the LINKS1000 unit, ensure that the control panel is correctly programmed and operating
properly by performing a test transmission to the monitoring station over the normal telephone line. If problems
are encountered in communicating over the normal telephone line, ensure that the communication options,
telephone numbers and account numbers are programmed properly in the control panel. The control panel
must be programmed properly in order for the LINKS1000 to operate.
To test the LINKS unit, apply power to the unit after all wiring connections have been made. Ten seconds after
power is applied to the LINKS unit, LED1 on the unit will begin to flash. Observe LED1 for at least 40 seconds;
if LED1 flashes once every ten seconds, then the LINKS unit is operating properly. If there is a trouble condition,
LED1 will flash several times every ten seconds. Refer to the “Trouble Supervision” section of this manual.
Performing a LINKS Test Transmission
Contact the monitoring station to request a transmission test. Remove the telephone cord from the RJ31-X jack.
Perform a Bell Test as described in the control panel’s Installation Manual. When the test is complete, contact
the monitoring station to confirm the transmission. Perform additional test transmissions as required by the
monitoring station.
NOTE: Whenever a cellular telephone call is answered by a receiver or another phone, cellular charges will
be applied to the cellular telephone account that placed the call. Therefore keep in mind that test signals
will increment the cellular bill. If for some reason the call is established; however, the alarm signal is not
received, the cellular account will still be billed. Please double check the installation before you test.
“On Air” Indication
Whenever the LINKS unit is communicating over the cellular network, the red LED (L1) on the unit’s circuit
board will be illuminated. When communications are successfully completed and there are no troubles to
report, the LED will return to its standby indication of one flash every 10 seconds. If trouble conditions exist,
the LED will flash 2 or more times every 10 seconds.
20-minute Transmission Cutoff
The LINKS1000 will automatically “hang up” after 20 minutes of continuous communication. This feature is
designed to prevent a cellular call from lasting indefinitely. NOTE: The 20-minute cutoff time may affect
downloading performed through the LINKS1000. While performing downloading functions, the LINKS1000
will automatically hang up the call after 20 minutes.
If LINKS1000 will not communicate to the central monitoring station receiver, check the following before calling
Sur-Gard technical support:
1. Check all wiring
A. Make sure T1 & R1 of the LINKS are connected to Tip & Ring of the control panel.
B. Make sure the GND of the LINKS is connected to a zone common or Aux- of the control panel.
C. Make sure the proper resistor is in place on control panel PGM (see installation instructions).
D. Make sure the programmer is not plugged into the LINKS1000.
2. Check the trouble LED (L1)
A. Check number of flashes on trouble LED. If the LED flashes more than once every ten seconds, refer
to Table 2. Repair the indicated problem.
B. Four flashes means bad communications with the cellular network. Add an extension antenna.
C. Eight flashes means bad PGMIn connection. This means the GND for the LINKS is not connected to a
panel ground or the control panel is not programmed correctly.
Be sure the control panel is properly programmed for LINKS operation. PGM outputs on DSC equipment
will be set to logic low when the panel is programmed correctly. Check the installation instructions in
the LINKS1000 manual for the particular panel being connected.
3. If red LED flashes once every ten seconds, yet LINKS still cannot reach central station:
A. Connect a telephone handset to TIP & RING of the control panel. Send a signal through the LINKS. Listen
to the handset. If a ‘network’ message is heard, make note of it and follow the instructions. For instance;
the network message says “you must first dial a 1 or zero before placing this call”. The telephone number
in the control panel probably requires a ‘Preamble’. Be sure the central station telephone number
is not programmed as the LINKS1000 cellular telephone number.
B. Check cellular activation. Call the cellular number of the LINKS1000. If the LINKS is properly activated
yet turned off, the network message should say “the cellular customer you have called is unavailable
or has traveled outside of the coverage area”. If the LINKS cellular number is called and the LINKS is
turned on (and downloading is not enabled and connected), the message should say “the customer
you have called has left the vehicle”, or it will simply hang up (this would occur after many rings). If the
cellular number is not activated the message will say “the number you have called is not in service”.
Call the cellular service provider and check the activation. Be prepared with the LINKS ESN and the
telephone number.
C. Still can’t communicate...send a signal through the LINKS and listen for the black relay on the
LINKS1000 board to ‘click’. That is the sound that occurs when LINKS is receiving the central station
telephone number via the control panel PGM output. If after that the red trouble LED stays on steady,
the LINKS is transmitting. If it doesn’t, the LINKS can’t find a voice channel. The panel will time-out and
attempt the call again. Try using an antenna extension kit to relocate the antenna.
D. Do not disconnect the telephone line between the LINKS and control panel when testing. Only
disconnect the telephone line at the RJ31X jack when testing the LINKS1000.
The LINKS1000 automatically monitors its operation and indicates trouble conditions by flashing LED1 on the
circuit board. LED1 normally flashes once every 10 seconds when the LINKS is in standby (ready to transmit)
mode. Troubles are indicated when LED1 flashes more than once at each 10 second interval. Shown below
are the number of flashes used to indicate each trouble condition. If more than one trouble is present, only the
first trouble is indicated. When that trouble is cleared, the next will be indicated.
Table 2 — LED1 Indications
Number of LED Flashes
2 flashes
3 flashes
4 flashes
6 flashes
7 flashes
8 flashes
AC Trouble
Battery Trouble
Loss of Cellular Communication
Tamper Trouble
Internal Trouble
PGMIn Trouble
Time-outs for LINKS failures
30 minutes
2 minutes, 40 seconds
30 seconds
30 seconds
30 seconds
30 seconds
AC Failure: Loss of AC power to the LINKS1000 for more than 30 minutes is indicated by an AC failure.
Battery Fault: A battery fault indicates that the LINKS1000 standby battery voltage is below 11.5 volts or there
is a problem with the battery connection.
Loss of Cellular Communication: Indicates that the LINKS1000 is not able to communicate with the cellular
network. Ensure the antenna connections and cabling are secure and undamaged, and that the antenna has
not been obstructed by metal objects. Check the signal strength LED’s as described in the “Relocating the
Antenna” section of this manual.
Tamper Fault: Indicates that the tamper contact is open. If a tamper switch is not installed, ensure that a jumper
is securely connected between the “TMP” and “GND” terminals.
Internal Fault: Indicates that an internal fault has occurred. Return the unit to your distributor for repairs.
PGMIn Fault: Indicates that there is a problem with the connection between the LINKS PGMIn terminal and the
security system’s PGM terminal. Check the following:
• Ensure that the PGMIn terminal is connected to the security system’s PGM terminal
• Ensure that the security system’s PGM Output has been programmed for LINKS operation
• Ensure that no other connections have been made to the security system’s PGM terminal
• Ensure that the LINKS GND terminal is connected to the security system’s ground terminal
• Ensure that a resistor has been added (for the PC4010, PC4020, PC4010CF, PC4020CF, PC5010). Refer to
the hookup diagram for information on the resistor required.
When using End-of-Line Resistor Loops, connect the LINKS Trouble terminal(s) to unused zone(s) on the
control panel, and program the zone as a 24-hour Silent Zone (when using the PC4010, PC4020, PC4010CF,
PC4020CF or PC5010, program the zone as “LINKS Supervisory”). The Alarm and Restoral Reporting Codes
for that zone will be used to report a general trouble (which could be any of the trouble conditions described
above) on the LINKS1000.
Note that the PC4010, PC4020 and PC4020CF use the Zone Trouble and Zone Trouble Restoral
Reporting Codes to report a general LINKS trouble condition.
Reading trouble conditions on the LINKS1000 via the LINKS1000 Programmer
NOTE: Any LINKS1000 software v2.x (starting at v2.1) will support a single event trouble buffer. LINKS1000
software v3.0 and higher has a trouble buffer that will show the last four troubles that the LINKS1000 registered.
The LINKS1000 Programmer v1.4 and later can be used to read the trouble, whether it is existing or cleared,
provided the trouble was present long enough to set the supervisory trouble terminal(s) (SYS TBL, AC TBL and
Bat TBL).
Step 1.
With AC power applied to the LINKS1000, connect the modular cord on the LINKS1000
Programmer to the modular jack on the LINKS1000.
Step 2.
Step 3.
Step 4.
Press any key on the Programmer to activate it.
Select the Trouble menu item.
The trouble items will be displayed.
For v2.x (2.1 and up) only the most recent trouble will be displayed. For v3.0 and higher, the most
recent event will be displayed when entering the trouble menu, and then by using the arrow keys,
the other three most recent troubles can be viewed.
The trouble buffer can be reset by pressing the [F] key and holding for 2 seconds. This will set the
display to show “No Trouble”. It is not necessary to reset the trouble buffer to receive new events.
Step 5.
Step 6.
Step 7.
Press [#] to exit the Trouble menu.
If no programming is to be performed, shut off the LINKS1000 Programmer and disconnect it from
the LINKS1000. (See “Disconnecting the LINKS1000 Programmer.)
Do not leave the LINKS1000 Programmer connected to the LINKS1000, as the LINKS1000 will
not function.
Table 3 — Messages Appearing on Programmer Trouble Screen
LINKS Trouble
“No Trouble”
“AC Trouble”
“Battery Trouble”
“Cellular Tbl”
“IIC Trouble”
“Tamper Tbl”
“PGMIn Trouble”
No problems in LINKS trouble memory
AC failure
Battery trouble
Loss of Cellular Signal
Self-Test-Internal Failure
Tamper fault on LINKS
Trouble with PGMIn connection, control panel has not been programmed for
LINKS, or trouble with the ground connection between panel & LINKS1000.
LINKS1000 is of an older version which does not have trouble memory.
“LINKS Version Not Compatible”
CAUTION: Changes or modifications not expressly
approved by Digital Security Controls Ltd. could void
your authority to use this equipment.
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or
more of the following measures:
• Re-orient the receiving antenna.
• Increase the separation between the equipment and
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/television
technician for help.
The user may find the following booklet prepared by the
FCC useful: “How to Identify and Resolve Radio/Television
Interference Problems”. This booklet is available from the
U.S. Government Printing Office, Washington D.C. 20402,
Stock # 004-000-00345-4.
This equipment complies with Part 68 of the FCC
Rules. On the side of this equipment is a label that
contains, among other information, the FCC registration
number of this equipment.
customer shall notify the telephone company of the
particular line to which the connection will be made,
and provide the FCC registration number and the
ringer equivalence of the protective circuit.
FCC Registration Number:
Facility Interface Code:
Ringer Equivalence Number: 0.0B
Service Order Code:
USOC Jack:
for the telephone company provided ringers, all connections
to the telephone network shall be made through standard
plugs and telephone company provided jacks, or
equivalent, in such a manner as to allow for easy, immediate
disconnection of the terminal equipment. Standard jacks
shall be so arranged that, if the plug connected thereto
is withdrawn, no interference to the operation of the
equipment at the customer’s premises which remains
connected to the telephone network shall occur by
reason of such withdrawal.
INCIDENCE OF HARM Should terminal equipment or
protective circuitry cause harm to the telephone network,
the telephone company shall, where practicable, notify
the customer that temporary disconnection of service
may be required; however, where prior notice is not
practicable, the telephone company may temporarily
discontinue service if such action is deemed reasonable
in the circumstances. In the case of such temporary
discontinuance, the telephone company shall promptly
notify the customer and will be given the opportunity to
correct the situation.
INFORMATION The security control panel must be
properly connected to the telephone line with a USOC
RJ-31X telephone jack.
The FCC prohibits customer-provided terminal
equipment be connected to party lines or to be used in
conjunction with coin telephone service. Interconnect
rules may vary from state to state.
OR FACILITIES The telephone company may make
changes in its communications facilities, equipment,
operations or procedures, where such actions are
reasonably required and proper in its business. Should
any such changes render the customer’s terminal
equipment incompatible with the telephone company
facilities the customer shall be given adequate notice to
the effect modifications to maintain uninterrupted service.
useful to determine the quantity of devices that you
may connect to your telephone line and still have all of
those devices ring when your telephone number is
called. In most, but not all areas, the sum of the RENs
of all devices connected to one line should not exceed
five (5.0). To be certain of the number of devices that
you may connect to your line, you may want to contact
your local telephone company.
experience trouble with this telephone equipment, please
contact the facility indicated below for information on
obtaining service or repairs. The telephone company
may ask that you disconnect this equipment from the
network until the problem has been corrected or until
you are sure that the equipment is not malfunctioning.
Digital Security Controls Ltd.
160 Washburn St., Lockport, NY 14094
Sur-Gard Security Systems Ltd. warrants that for a period of twelve months from the date of purchase, the
product shall be free from defects in materials and workmanship under normal use and that in fulfillment of any
breech of such warranty, Sur-Gard Security Systems Ltd. shall, at its option, repair or replace the defective
equipment upon return of the equipment to its repair depot. This warranty applies only to defects in parts and
workmanship and not to damage incurred in shipping or handling, or damage due to causes beyond the
control of Sur-Gard Security Systems Ltd., such as lightning, excessive voltage, mechanical shock, water
damage, or damage arising out of abuse, alteration or improper application of the equipment.
The foregoing warranty shall apply only to the original buyer, and is and shall be in lieu of any and all other
warranties, whether expressed or implied and of all other obligations or liabilities on the part of Sur-Gard
Security Systems Ltd. Sur-Gard Security Systems Ltd. neither assumes, nor authorizes any other person
purporting to act on its behalf to modify or to change this warranty, nor to assume for it any other warranty or
liability concerning this product.
In no event shall Sur-Gard Security Systems Ltd. be liable for any direct or indirect or consequential damages,
loss of anticipated profits, loss of time or any other losses incurred by the buyer in connection with the
purchase, installation or operation or failure of this product.
WARNING: Sur-Gard Security Systems Ltd. recommends that the entire system be completely tested on a
regular basis. However, despite frequent testing, and due to but not limited to, criminal tampering or electrical
disruption, it is possible for this product to fail to perform as expected.
How to Contact Us:
For information about additional products, please call our sales number: 1-800-418-7618, or
e-mail us at [email protected]
Technical Support
If you have questions of problems when using Sur-Gard products, you can call our Technical
Support Department, or e-mail us at [email protected] If you are within the United States,
Puerto Rico, the U.S. Virgin Islands or Canada, you can get support by dialing 1-800-503-5869 ext.1.
If you are outside these areas, please call (416) 665-4494 ext.1, Fax (416) 665-1500.
Sur-Gard is now on the World Wide Web. You will be able to search the Sur-Gard technical
information database and read information about new products at our web site. You will also be able
to send us your questions. Our World Wide Web address is
© 1999
Sur-Gard Security Systems Ltd.
401 Magnetic Drive, Unit #24
Downsview, Ontario, Canada M3J 3H9
29003335 R001
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