Chapter 2: Installation
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Figure 2-2. Battery Installation

2.5 Starting the OMA-P1104

When the AC power transformer is first plugged into the
electrical outlet, the OMA-P1104 automatically starts in RUN
mode. The red LED light will begin to glow. The unit will
respond with,“Hello, this is Sensaphone® 1104.”

2.6 Run Mode and Standby Mode

Pressing the RUN/STANDBY key on the OMA-P1104 keypad
will alternately activate or deactivate the unit. If the unit is
activated and in RUN mode, the red LED (small red light on
the upper right of the unit's front panel) glows steadily. In
STANDBY mode, the red LED goes out, but will blink every
few seconds to indicate that power is still supplied to the unit.
In RUN mode, the OMA-P1104 is able to receive incoming
calls and to automatically dial out in the event of an alarm on
one of the monitored conditions. To enter STANDBY mode,
press RUN/STANDBY.
As soon as the OMA-P1104 enters STANDBY mode, it
responds with “Have a good day. The red light immediately
goes out and then resumes with a blink every few seconds.
While in STANDBY mode, all functions are disabled, but