American Dynamics Multivision Quest TMV910Q, User Manual

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User’s Guide
20 Basic Operations
7. The Call Monitor will switch to the alarmed camera channel. If more than one
camera is alarmed, the affected cameras will be displayed in sequence.
8. The events will be added to the alarm history log (if enabled).
The above actions will continue until the following conditions are met:
1. All the Alarm In pins are inactive.
2. The alarm input release time has elapsed, and no further Alarm In has been
triggered.
3. The alarm output duration time has elapsed.
Motion Detection Alarm Event
The response triggered by motion detection is the same as for an Alarm In, with the
exception that the label for the alarm that is sent to the VCR and recorded in the alarm
history log is “Motion Detect”. See
Motion Detection on page 41 for more information.
Increased Recording Detail on Alarmed Channel
More fields from the alarmed camera or cameras will be output to the VCR by the
encoder during an Alarm In or Motion Detect condition, than for “quiet” cameras
which are not the subject of an alarm. The net result is a higher refresh rate and a
smoother picture that is closer to real time for the alarmed camera. The following
diagram illustrates the concept for a four-camera installation:
Alarm History Log
The alarm events will be logged in non-volatile memory. See Alarm List (Alarm History
Log) on page 45 for more information.
Figure 8 — Recording Detail for Four-Camera Installation
1 4 3 2 1 4 3 2
Normal Operation
Sequence of fields sent to VCR
1 2 3 2 4 2 3 2
Motion Detection Alarm on Channel 2
Sequence of fields and alarm signal sent to VCR
ALARM ALARM ALARM ALARM