GSMBR / iGSMBR Installation and Setup Guide
Backup Battery Connection
The included battery is used for backup in the event of a system power loss. If using the
LYNXR-I, the communications module's backup battery is not used. Instead, backup
power is supplied by the LYNXR-I.
NOTE: The backup battery should be replaced every 3 years or when a low battery report is
received at the Central Station.
The battery can provide over 24 hours of system life in the event of a power failure.
A power loss message (programmable option) can alert the AlarmNet Control Center
when power is lost. Power loss messages are reported within 1-3 hours of actual loss.
The communications module sends a low-battery message (programmable option) when
the battery drops to 5.7V ±5%.
The system shuts down when the battery voltage falls below 5.1V, therefore radio
transmissions are no longer possible.
If system power is restored before the module shuts down, a power-on restore message is
sent within 1-3 hours after power is restored, and the battery is recharged using the
communications module's internal battery charger.
If system power is restored after the communications module has shut down, the module
initializes itself and the battery will recharge.
Install the battery as follows, and refer to the Summary of Connections diagram at the end of
1. Place the battery inside the case back.
2. Snap the right side of the battery clip onto the inside of the case back and secure the left
side with the screw provided.
NOTE: DO NOT connect the battery at this time.
Initial Power-Up Sequence
NOTE: Initially, all communications module programming options are set to the factory
Before connecting power, check that the following have been completed:
1. If using ECP, 4204 or 2-4204 Mode, terminal block TB1 V+ and GND terminals are
connected to the control panel's auxiliary power output: 12VDC nominal.
2. Plug in the transformer (or other main power source).
3. Connect the red and black battery cables to the battery terminals. Connect the battery
cable to connector J1.
4. Power up the control panel.