American Dynamics Multivision Quest TMV910Q, User Manual

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Triplex Digital Video Multiplexer
Advanced Setup Using On-Screen Menus 43
Release Time
This menu is used to set the “release time” of each alarm source: motion detection,
video loss and alarm in. The release time is a period of time after the alarm trigger
condition is removed, during which the same condition will be ignored to avoid a
false alarm being re-triggered.
Release Time
1 Motion Res Time 2
2 Video Loss Res Time 2
3 Alarm In Res Time 10
4 Exit
Example 1: An alarm input occurs for a particular channel as
shown below. An alarm will be triggered at the rising edge of
signal A, and the response duration timer countdown will begin
(the multiplexer stays in alarm status until the signal ends and
the response time expires). When the alarm ends (falling edge
of signal A), the alarm-in release time countdown (2 sec. in this
example) begins. A new alarm signal at point B will trigger a
new alarm since the alarm-in release time from signal A is
over. If another alarm input is detected before the timer times
out (e.g. C, D), then the alarm inputs will be disregarded, and
the alarm in release timer will be reset. In this example, the
next possible time for the alarm-in channel to be reactivated is
2 sec. after the end of signal D. Signal E would produce a new
alarm.
Alarm-In
t=2 sec t=2 sec t=<2 sec etc.
A
E D C B