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Pelco Manual C2914M-F (08/05)
Low Voltage Power Supply
Cameras fitted with an automatic-switching low voltage power supply operate at 10.8 to 13.8 VDC (12 VDC
-10% +15%) or 20.4 to 27.6 VAC (24 VAC ±15%) at 50/60Hz. Connections and polarity are indicated adjacent to
the screw terminals on the rear panel.
Refer to Table B for the recommended wire gauge and wiring distances.
CAUTION:
AC Operation Only - When wiring more than one camera to the same transformer,
connect the same side of the transformer to the same terminal on all cameras. Failure to connect
all of the cameras the same way will cause the cameras to be out of phase with each other and
may produce a vertical roll when switching between cameras.
Wire Gauge
24 VAC
12 VDC
AWG
mm
2
Feet
Meters
Feet
Meters
24
0.25
224
68
56
17
22
0.35
356
108
89
27
20
0.5
567
172
141
42
18
1
902
274
225
68
16
1.5
1432
436
358
109
14
2.5
2285
696
571
174
12
4
3622
1103
905
275
10
6
5760
1755
1440
438
WARNING:
When powering the camera via the screw terminals, ensure that the power
connections to the RJ45-10 connector are not used, and that any connections to the RJ45-10 are
not shorted together. The power supply must be a UL Listed Class 2 isolated type.
Table B. Wiring Distances for 5 VA Cameras (24 VAC/12 VDC)
The following are the recommended maximum distances for low voltage cameras. These distances are calculated
with a 10 percent voltage drop. (Ten percent is generally the maximum allowable voltage drop for AC-powered
devices.)
EXAMPLE:
A camera that requires 5 VA and is installed 224 feet (68 m) from the transformer would require
a minimum wire gauge of 24 AWG.
Summary of Contents for CC3610 series
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