Python 436 Series - Manual (Page 18)

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The microprocessor at the heart of your security system is
constantly monitoring all of the switches and sensors that are
connected to it. It detects any faulty switches and sensors and
prevents them from disabling the entire system. The micropro-
cessor will also record and report any triggers that occurred
during your absence. Refer to the System Status Chirps and Table
of Zones charts for diagnostic information.
arming diagnostics
If the system is armed while an input is active (door open, sensor
triggering, etc.) the unit will chirp once when arming and then
one more time a few seconds later. This is called Bypass
Notification.
The security system will ignore the input that was active when
the system was armed, until the input goes away. Three seconds
later the system will monitor that input normally. For example,
if your vehicle has interior light exit delay, and you arm the
system before the interior light goes out, you may hear Bypass
Notification chirps. Once the light shuts off, however, the doors
are monitored normally.
note: Bypass Notification will not occur when using
Silent Mode™ or if chirps have been programmed OFF.
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