Communicator Placement Test; Cellular Communicators Models Only; Cellular Signal Strength Display - Lcd Keypad Only - DSC TL280LE Installation Manual

communicated to all programmed receivers. If this is the first time the communicator has been
powered up in the panel, the module will initiate communications to C24 Communications to
request remote programming.
NOTE: During radio reset, the two green LEDs will flash alternately.
NOTE: Initialization may take several minutes to complete. Red and yellow LEDs will flash together dur-
ing initialization. Do not continue to next step until the red and yellow LEDs have stopped flashing.
(If only the yellow LED is flashing, there is a communicator trouble and the green LEDs are not
valid for communicator placement test). Correct trouble indicated by flashes on yellow LED before
continuing. (See Table 8 for troubleshooting assistance).
7. Perform the communicator placement test below.
8. Mount the panel in final location indicated by placement test.

Cellular Communicators Models Only

To confirm that the cellular antenna location is suitable for radio operation, perform the placement test as
follows:
NOTE: It might be necessary to relocate the panel or install an optional extension antenna during this pro-
cedure, if the radio signal strength is too low.
1. Confirm that the yellow LED on the communicator is not flashing. A flashing yellow LED indicates
trouble on the communicator. See Table 8 to troubleshoot and correct the cause of this trouble
before continuing to the next step.
2. Confirm that the strength of the radio signal on the yellow LED and the 2 green LEDs on the com-
municator meet or exceed the minimum signal level requirement. Minimum signal level: The yellow
LED is OFF and the green LED 1
(furthest from the yellow LED) is ON (i.e., not flashing) for the panel location to be acceptable. For
interpretation of receiver strength on LEDs, refer to the table "Radio Signal Strength" on page
10.

Cellular Signal Strength Display - LCD Keypad only

The cellular network signal strength can be checked on the keypad LCD screen by entering installer pro-
gramming section [850]. The LCD will indicate the SIM card activation status followed by up to five bars of
signal strength. This display will automatically update every three seconds. For the relationship between
signal strength bars, CSQ level, and signal level in dBm, refer to "Radio Signal Strength" on page
10.
SIM card active and current signal strength
SIM card inactive and current signal strength
Radio not registered
NOTE: If the required signal strength is too low with the panel in its current location, the panel must be
relocated or an external antenna is required.
If required, the following cellular extension antenna kits are available to the installer:
GS-15ANTQ - 4.57m (15') internal antenna extension kit (suitable for interior mounting).
l
GS-25ANTQ - 7.62m (25') external antenna extension kit (suitable for interior/exterior mounting).
l
GS-50ANTQ - 15.24m(50') external antenna extension kit (suitable for interior/exterior mounting).
l
Specific instructions for the installation of the extension antenna are included with the kit. Observe all the
electrical safety instructions regarding the installation of the antenna. All the wiring of the equipment shall
be fully compliant with the local rules and regulations.
3. If required, install the antenna extension and perform the following steps to determine the best loc-
ation for placement of the antenna:
a. Disconnect the white whip antenna from the panel.
b. Attach one end of the antenna extension cable to the threaded antenna connector on the panel
and the other end to the external antenna.

Communicator Placement Test

Table 4: Signal Strength Display
Description Display
OR AND
12