Appendix-E: Alarm Verification - Faraday MPC-6000 Installation, Operation And Maintenance Manual

MPC-6000 / MPC-7000 / RND-2 INSTALLATION, OPERATION AND MAINTENANCE MANUAL

APPENDIX-E: ALARM VERIFICATION

Alarm verification provides MPC-6000/MPC-7000/RND-2 with a way to verify an alarm from
area type addressable smoke detectors connected to intelligent loops (FDLC). This feature
reduces the incidence of false alarms. Only detectors that do not contain an integral alarm
verification feature can be used.
Addressable detectors connected to FDLCs indicate that an alarm condition has been
detected. If the device is subject to alarm verification, the FDLC alerts the control panel that
the device has entered verification but is not yet considered to be in alarm. The FDLC starts a
timer using the MPC-6000/MPC-7000/RND-2 system Retard-Reset Period. When the timer
expires, the FDLC begins the fixed 60-second confirmation period. If the device is no longer in
alarm during the confirmation period, the verification cycle is considered complete and
detection of a subsequent alarm from that device results in the verification cycle restarting. If
the device still reports in the alarm state during this confirmation period, the alarm condition is
reported to the control panel and the system annunciates the alarm condition.
See the figure below for a graphic illustration of Alarm Verification.
NOTE: For devices connected to the FDLC, the Detector Restart period is 0 seconds.
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