Fire Alarm for no reason...

Plugins & Plugin Development Unmaintained
1

We have AD2USB ties into our Vista21 panel with the SMX-120 hardwired into our smoke detectors.

Today, at 3AM, our alarm goes off. I go down to disarm it and I find out that it’s the Fire Alarm that is going off (even though NONE of our smoke detectors are going off). The alarm company calls me, I tell them it’s a false alarm and I disarm the thing. Then I see this in my logs:

2017-06-23 03:06:13.925, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:07:01.757, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:07:01.997, P, 191, Ademco Vista Partition 1, ArmMode, Disarmed,
2017-06-23 03:07:02.197, P, 191, Ademco Vista Partition 1, DetailedArmMode, Ready,
2017-06-23 03:07:05.735, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:07:09.714, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:07:13.601, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:07:17.609, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:07:21.522, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:07:25.532, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:07:29.485, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:07:33.426, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:07:37.403, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:07:41.348, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:07:45.313, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:07:49.302, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:07:53.206, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:07:57.221, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:08:01.163, P, 191, Ademco Vista Partition 1, Alarm, Active,
2017-06-23 03:08:05.063, P, 191, Ademco Vista Partition 1, Alarm, None,
2017-06-23 03:08:09.004, P, 191, Ademco Vista Partition 1, Alarm, Active,

It just keeps repeating this over and over until I disconnected the AD2USB.

  1. What would cause the fire alarm to go off without the smoke detectors going off?
  2. Why does the partition keep showing alarm active?