12 Pelco Manual C1927M (5/99)
2. For proper recording, the switching rate of the multiplexer between cameras must
match that of the VCR. There are two ways to do this:
a. One way is with a head switching pulse from the VCR. This is the most reliable
way to synchronize the multiplexer and VCR. The pulse from the VCR tells the
multiplexer how fast to switch between cameras. To use this method, connect the
head switching pulse output from the VCR to the HS (head switching) connection
on the multiplexer. Refer to Figure 6. The six-pin plug-in terminal block may be
pulled out of the connector on the back of the multiplexer to facilitate ease of
wiring.
b. If a head switching pulse from the VCR is not available, you can synchronize the
VCR and multiplexer by programming the multiplexer switching rate to match the
recording speed of the VCR. This will be done in the
Programming
section, after
you have finished installing your multiplexer. No wiring is required if you use this
method.
Proceed to the
Alarms
section.
PELCOTIME-LAPSE VCR
A
B
REMOTE
RESET
IN
GND CLK
AUDIO VIDEO
IN OUT
CALL
OUT
OUT
MIC
ALM
IN
RECSET RST MODE
VCR
MAIN
SPOT
OUT IN
SVHS
IN COM OUT
ALARMS
12345678 91011 1415161213 110-240V~50/60Hz
NNH
OCCS
REMOTE
RESET
IN
GND CLK
AUDIO VIDEO
IN OUT
CALL
OUT
OUT
MIC
ALM
IN
RECSET RST MODE
Figure 7. Pelco Time-Lapse VCR Wiring Example