5.5PTZ 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.
5.6VCR 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
akeyboard.
5.7OTHER 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.
5.8THE 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
The alarm stack will pause for a
Rev. A | HMXMU001056 | |
|
| 03/16/05 |