Appendices
37
APPENDIX B
ALARM RECORDING
CONTROL
Most installations require that alarm events be documented
on videotape. The Simplex provides all of the necessary con-
nectors and signals to accomplish this. The Simplex is com-
patible with virtually all VCRs and flexible enough to satisfy
most video documentation requirements.
An alarm event begins when an active alarm signal is detected
at the
alarms
connector. The sequence of events following
alarm detection is determined by one or more of the following:
• Option settings
• VCR programming
• Connections between the Simplex and VCR
The following paragraphs describe uncontrolled or controlled
alarm recording.
Uncontrolled Alarm
Recording
When alarm recording is not controlled, the VCR records cam-
eras with active alarms at the normal rate. Since there is no
alarm connection between the VCR and the Simplex, the VCR
does not change recording speed when an alarm occurs. The
VCR simply records alarm video output from the Simplex at
the set time-lapse speed. Uncontrolled alarm recording requires
only video connections between the Simplex and the VCR.
Alarm connections are not required.
To set up the system for uncontrolled alarm recording:
1.
Connect the Simplex
vcr in
connector to the VCR’s video
out connector and the Simplex
vcr out
connector to the
VCR’s video in connector.
2.
Set the Simplex
ALARM DURATION
to the number of sec-
onds you wish each alarm event to be recorded.
3.
Set the VCR’s time-lapse speed as desired.
4.
Set the Simplex
VCR RECORD TIME
and
VCR ALARM
RECORD TIME
options to match the speed set at the VCR.
