Specifications
Pelco Manual C1920M-D (4/03) 11
LOOPED VIDEO OUTPUT
Figure 6. Camera Wiring Example
Video inputs can come from any conventional source. No external camera synchronization
is required. Table A shows the type of video coaxial cable to use.
To connect cameras (refer to Figure 6):
1. Connect the coaxial cables from your cameras or receivers to the IN connectors. If
you are using moveable cameras, the receivers must be Coaxitron compatible.
Stand-Alone Multiplexer – Connect fixed cameras to channel inputs.
Multiplexer with KBD4000/KBD4002 – Connect fixed or moveable cameras to channel
inputs.
Multiplexer with KBD4000/KBD4002 and MX4000SVR Server – Connect fixed or
moveable cameras to channel inputs.
Multiplexer with CM6700 (Duplex Models Only) – Connect fixed or moveable cameras
to the multiplexer first, and then loop them to the CM6700 (refer to Figure 4). Termination
for each camera input at the multiplexer must be changed from 75 ohms to high imped-
ance through programming. Refer to the
System Setup (View Button)
section to
globally set termination or the
Camera Setup (Camera Button)
section to individually
set termination.
2. If you want to loop a video signal out to another device, connect coaxial cables from
the looping OUT connectors to the external equipment inputs, and program the
camera’s termination to looping (refer to the
Camera Setup [Camera Button]
section).
Multiplexer with CM6700 (Duplex Models Only) – Loop the video outputs from the
multiplexer to the VIDEO INPUTS of the CM6700 SCU.
Table A. Video Coaxial Cable Requirements
Cable Type* Maximum Distance
RG59/U 750 ft (229 m)
RG6/U 1,000 ft (305 m)
RG11/U 1,500 ft (457 m)
* Minimum cable requirements:
75 ohms impedance
All-copper center conductor
All-copper braided shield with 95% braid coverage
2
CAMERAS
IMPORTANT:
Camera
power should be wired in
phase to all cameras. When
cameras are sequenced,
they will roll on the spot
monitor (and on the auxiliary
monitor with duplex models)
if they are out of phase. On
the main monitor, cameras
are digitally time corrected
and will not roll when
sequenced if they are out
of phase.