Installation and Operation Manual
35
Video Loss Alarms The MUX-1602C detects loss of video at any connected camera
input
by monitoring the camera’s video sync signal. The Video
Loss
Alarm option controls this feature. When this option is
ON
(the
default), the MUX-1602C responds to loss of camera
video by alerting
the operator and performing tasks required to
record the alarm
event on videotape.
The MUX-1602C does the following when it detects loss of
camera
video:
1.
Flashes the associated
camera
button light.
2.
Energizes the alarm relay.
3.
Switches the Call Monitor to the lost camera input and displays
the VIDLOSS message. If multiple cameras lose camera input,
those camera titles will be displayed in sequence on the Call
Monitor.
4.
Switches the Main Monitor to the multicamera format, if the
alarm camera is not already displayed, and displays the
VIDLOSS message, if the Video Loss Alarm option is set to
ON
(the default).
5.
Switches to the VCR Alarm Record Time encoding rate.
6.
Encodes the camera as “video lost” and sends it to the VCR.
The MUX-1602C remains in the alarm state until ALL of the
following
occur:
•
No video loss is detected.
•
The Alarm Duration time elapses.
•
The Alarm Hold Input is released.
Multiple alarms are processed in the order in which they occur.
Alarm cameras are identified by flashing
camera
button lights
and receive priority for output to the VCR.
