Filter
Top Products
5.5 PTZ SITE TAMPER ALARMS
To protect a camera PTZ site from unauthorized access, the tamper alarm input would
be used. A tamper alarm is LATCHING, so once activated, it can only be cleared from
the keyboard by an operator.
5.6 VCR ALARMS
VCR alarms are commonly used to detect END OF TAPE or NO RECORD status
conditions and report these to the operator. The VCR alarm would be cleared
automatically by rectifying the reported condition. VCR alarms can also be cleared from
a keyboard.
5.7 OTHER DEVICE ALARMS
Multiplexers and other devices that are under the control of the system can also have
associated alarms. For video motion detectors, this could be a movement alarm; for a
video printer, it may be a device busy or out of paper alarm.
Similar to VCR alarms, they are used to help automatically manage the video system.
5.8 THE ALARM STACK
Whenever an alarm becomes active, it is placed onto the alarm stack. If several alarms
become active at the same time, they will all be placed onto the alarm stack accordingly.
The purpose of the alarm stack is to cycle between the currently active alarms, re-
displaying their particular text messages and re-executing their specific automatic
camera selections (and other control actions).
The alarm stack will pause for a pre-defined period between each active alarm recorded
on the stack.
Rev. A 5-3 HMXMU001056
03/16/05