Directed Electronics 3901T Owner's Manual page 8

Multi-level security arming
(If programmed ON)
Multi-Level Security Arming allows the user to select sensors to be
active or bypassed when the system is armed. Multi-Level Security
Arming can only be accessed if the function is set ON (option 3-2)
By pressing the LOCK button more than once within 3 and 7 seconds
of arming the system activates Multi-Level Security Arming. If the LOCK
button is pressed again the unit cancels the bypass of the sensors.
There are different security levels which can be selected, as follows:
Step Lock Button
pressed
1 Once
2 Twice
3 If the Lock button is pressed again anytime, the system will
return to step 1. The user can repeat the steps provided the
LOCK button is pressed between 3 and 7 seconds and no
other buttons are pressed.
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Number of Siren
Chirps
1 Chirp
3 Chirps, 3 flashes Zone 2 & 4
Armed State with
Zone Bypassed
No Zone Bypassed
Bypassed
5