Fujitsu PSN 900 Plus Operating Manual page 27

In this screen, you can choose to enable or disable the Door Sensor Alarm
function and set the alarm delay time.
Note: This function is limited to the case of connecting to the electric lock
directly with the door sensor having been connected.
ⅱ. Tamper Alarm:
Click the Tamper button to enter the following screen. You can choose to
enable or disable the Tamper alarm function. If the tamper alarm is enabled, when
the device is dismantled, the device itself or the external alarm will issue an alarm.
ⅲ. Alarm Signal Output:
Click the Signal Transfer Output button to enter the following screen, and then
you can select "Local Alarm" or "External Alarm".
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