Alarm.com LTE
For UL Residential fire and burglary applications, the TL8055LT
munication channel via Cellular, or as a back-up in conjunction with the DACT. (30 day test transmission is
required on each channel).
Power down
Before adding the TL8055LT communicator to the IMPASSA panel, please follow the steps below to remove
power from the panel.
1. Disconnect the AC transformer from the wall.
2. Remove the front cover of the IMPASSA panel by following the instructions in Figure 1-1.
3. Remove the ribbon cable from the IMPASSA base so that you can remove the front cover completely.
4. Unplug the battery connector from the IMPASSA circuit board.
Module installation steps
If the panel came with the module pre- installed then only an LTE phone test is required. Otherwise, install-
ation includes the following steps:
1. The module compartment can be found behind the front panel that swings down, to the right of the battery
compartment as seen in the following figure.
Figure 1-1 Front view of IMPASSA panel
Remove cover screw
Insert screwdriver in slots indicated.
Gently pry open cover with screwdriver
until cover separates.
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UL/ULC
can be used as primary com-