Initial Power-Up Sequence - Honeywell AlarmNet 7845GSM Installation And Setup Manual

7845GSM/7845GSMCN Installation and Setup Guide
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Install the battery as follows, and refer to the Summary of Connections diagram at the end of
this document.
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
1. Do not plug the battery in until after you have powered-up the 7845GSM.
2. If using a LynxR-I, do not connect the module's backup battery. The LynxR-I backup
battery will supply backup power in the event of a power outage.

Initial Power-Up Sequence

Before connecting power, check that the following have been completed:
1. If using ECP 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). Initially, all 7845GSM
programming options are set to the factory default settings.
3. Connect the red and black battery cables to the battery terminals. Connect battery cable
to connector J1.
4. Power up the control panel.
2-6
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The module transmits a low-battery message (programmable) when the battery
reaches 5.7V ±5%, indicating subsequent message may not be transmitted.
The system shuts down when the battery reaches 5.1V, and radio transmissions are
no longer possible.
If system power is restored before the module shuts down, a power restore message is
sent within 1-3 hours after power is restored, and the battery is recharged using the
7845GSM's built-in battery charger. If system power is restored after the 7845GSM
has shut down, a power-on reset condition exists, the module initializes itself and the
battery will recharge.
left side with the screw provided.
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