Section 2: Installing The Links2450; Unpacking The Links2450; Select A Mounting Location; Connect A Power Supply - DSC Links2450 Installation Manual

Long range rf transmitter
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INSTALLING THE LINKS2450
INSTALLING THE LINKS2450
Before installing the LINKS2450, install and test the security system to which it will
Before installing the LINKS2450, install and test the security system to which it will
be connected, according to the system's Installation Manual .
be connected, according to the system's Installation Manual .

2.1 Unpacking the LINKS2450

2.1 Unpacking the LINKS2450
Check that each of these parts is included in your LINKS2450 package.
Check that each of these parts is included in your LINKS2450 package.
LINKS2450 circuit board
LINKS2450 circuit board
LINKS2450 plastic cabinet
LINKS2450 plastic cabinet
CAUTION: Due to the sensitivity of the RF circuitry, avoid any contact with the coils
CAUTION: Due to the sensitivity of the RF circuitry, avoid any contact with the coils
and potentiometers on the LINKS2450 circuit board.
and potentiometers on the LINKS2450 circuit board.

2.2 Select a Mounting Location

2.2 Select a Mounting Location
The area where you mount the LINKS2450 should be:
The area where you mount the LINKS2450 should be:
• dry
• dry
• close to the installed alarm control panel cabinet.
• close to the installed alarm control panel cabinet.
• far from sources of interference, including: electrical noise such as
• far from sources of interference, including: electrical noise such as
computers, televisions and electric motors in appliances and heating and air
computers, televisions and electric motors in appliances and heating and air
conditioning units; large metal objects like heating ducts and plumbing which
conditioning units; large metal objects like heating ducts and plumbing which
may shield the antenna. If you must mount the LINKS2450 near such items,
may shield the antenna. If you must mount the LINKS2450 near such items,
you may have to mount the antenna on a remote bracket away from the
you may have to mount the antenna on a remote bracket away from the
LINKS2450.
LINKS2450.
• close to the power supply. See section 2.3 "Connect a Power Supply".
• close to the power supply. See section 2.3 "Connect a Power Supply".

2.3 Connect a Power Supply

2.3 Connect a Power Supply
You can use the Bell+ and Aux- terminals from the control panel to power the
You can use the Bell+ and Aux- terminals from the control panel to power the
LINKS2450. If you will be using a separate power supply, install it near the
LINKS2450. If you will be using a separate power supply, install it near the
LINKS2450. Refer to the power supply's installation instructions, for more information.
LINKS2450. Refer to the power supply's installation instructions, for more information.
NOTE: The current drawn by the LINKS2450 and the siren(s) connected to the Bell
NOTE: The current drawn by the LINKS2450 and the siren(s) connected to the Bell
terminals must not exceed that specified by the rating of the control panel. Refer to
terminals must not exceed that specified by the rating of the control panel. Refer to
your control panel's Installation Manual for more information.
your control panel's Installation Manual for more information.
The wiring between the LINKS2450 and the power supply should not be longer than
The wiring between the LINKS2450 and the power supply should not be longer than
indicated in the table below:
indicated in the table below:
Wire Gauge (AWG)
Wire Gauge (AWG)
Maximum Wire Length (feet / meters)
Maximum Wire Length (feet / meters)
22
22
20
20
18
18
You can double the maximum wire length if you double the conductors and connect
You can double the maximum wire length if you double the conductors and connect
them in parallel. Mount the LINKS2450 as close to the power supply as possible.
them in parallel. Mount the LINKS2450 as close to the power supply as possible.
4
4
Section 2
Section 2
15' / 4.5m
15' / 4.5m
25' / 7.5m
25' / 7.5m
40' / 12.0m
40' / 12.0m
TESTING THE LINKS2450
TESTING THE LINKS2450
Before testing the LINKS2450, ensure that the control panel is correctly pro-
Before testing the LINKS2450, ensure that the control panel is correctly pro-
grammed and operating properly. Refer to your system Installation Manual for
grammed and operating properly. Refer to your system Installation Manual for
instructions on testing your system. The control panel must be programmed
instructions on testing your system. The control panel must be programmed
properly in order for the LINKS2450 to operate.
properly in order for the LINKS2450 to operate.
To check that the LINKS2450 is working, apply power to the unit after all wiring
To check that the LINKS2450 is working, apply power to the unit after all wiring
connections have been made. When the LINKS2450 is sending a transmission, the
connections have been made. When the LINKS2450 is sending a transmission, the
LED on the circuit board will turn on.
LED on the circuit board will turn on.
5.1 Performing a LINKS Test Transmission
5.1 Performing a LINKS Test Transmission
Contact the monitoring station to request a transmission test. Remove the tel-
Contact the monitoring station to request a transmission test. Remove the tel-
ephone cord from the RJ-31X jack. Perform a Bell Test as described in the control
ephone cord from the RJ-31X jack. Perform a Bell Test as described in the control
panel's Installation Manual . When the test is complete, contact the monitoring
panel's Installation Manual . When the test is complete, contact the monitoring
station to confirm the transmission. Perform additional test transmissions as
station to confirm the transmission. Perform additional test transmissions as
required by the central station.
required by the central station.
5.2 "On Air" Indication
5.2 "On Air" Indication
Whenever the LINKS2450 unit is communicating, the LED on the unit's circuit board
Whenever the LINKS2450 unit is communicating, the LED on the unit's circuit board
will turn ON for each round of communications. Each event has 3 rounds. Therefore,
will turn ON for each round of communications. Each event has 3 rounds. Therefore,
if one reporting code is sent, the LED will activate 3 times to indicate each round.
if one reporting code is sent, the LED will activate 3 times to indicate each round.
5.3 Troubleshooting
5.3 Troubleshooting
If the LINKS2450 is not working properly, check that all wiring and all programming
If the LINKS2450 is not working properly, check that all wiring and all programming
are correct before calling for technical support (1-800-387-3630).
are correct before calling for technical support (1-800-387-3630).
5.4 Testing Tools
5.4 Testing Tools
The following tools are available from SafeLink:
The following tools are available from SafeLink:
The following tools are available from SafeLink:
The following tools are available from SafeLink:
The following tools are available from SafeLink:
The following tools are available from SafeLink:
The following tools are available from SafeLink:
The following tools are available from SafeLink:
The following tools are available from SafeLink:
The following tools are available from SafeLink:
UHF RF Power Meter - Connects to the antenna jack on the LINKS2450. Indicates
UHF RF Power Meter - Connects to the antenna jack on the LINKS2450. Indicates
the transmit power of the radio.
the transmit power of the radio.
UHF Scanner - Checks that the radio is transmitting data.
UHF Scanner - Checks that the radio is transmitting data.
Frequency Counter - Checks that the LINKS2450 is transmitting on the correct
Frequency Counter - Checks that the LINKS2450 is transmitting on the correct
frequency.
frequency.
5.5 Periodic Test Transmission
5.5 Periodic Test Transmission
The LINKS 2450 will transmit a periodic test transmission at the time/day/interval
The LINKS 2450 will transmit a periodic test transmission at the time/day/interval
using the Reporting code programmed in the main control panel.
using the Reporting code programmed in the main control panel.
Section 5
Section 5
13
13

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