Specifications

46 Multivision® Pro Installation and Operation Manual
APPENDIX B
ALARM RECORDING
CONTROL
Most multiplexer installations require that alarm events be
documented on videotape. The multiplexer provides all of
the necessary connectors and signals to accomplish this and
is flexible enough to satisfy most video documentation
requirements.
A multiplexer alarm event begins when the unit detects an
alarm signal at the alarms connector, or motion at a camera
set up for motion alarms. The sequence of events following
alarm detection is determined by one or more of the following:
• Multiplexer option settings.
• VCR programming.
• Connections between the multiplexer and the VCR.
Uncontrolled Alarm
Recording
When alarm recording is not controlled, the VCR records alarm
cameras as normal video. Recorder operation is not affected
by alarm events. The VCR simply records alarm video output
by the multiplexer at the set time-lapse speed. Uncontrolled
alarm recording requires only video connections between the
multiplexer and the VCR. Alarm connections at the VCR are
not required.
To set up the system for uncontrolled alarm recording:
• Connect the multiplexer vcr in and vcr out connectors to
the VCR’s video output and video input respectively.
• Set the multiplexer ALARM DURATION option to the
minimum number of seconds you wish each alarm event
to be recorded.
• Set the VCR’s time-lapse speed as desired.
• Set both the multiplexer VCR RECORD TIME and VCR
ALARM RECORD TIME options to match the speed set at
the VCR.