Pelco C3420M manual Table C. UTP Wiring Distances, Table A. Video Coaxial Cable Requirements

1.Install the mount for the pendant dome. Refer to the instructions supplied with the mount. If the mount is outdoors, make sure it is properly sealed to keep moisture out.

2.Open the hinged door to the back box. Push the tab lock towards the wall of the unit and lift the door open. Pull wiring into the back box. Refer to Table A, Table B, and Table C for wiring distances.

3.Screw the back box onto the mount. If outdoors, apply thread compound (provided) to the threads on the back box. NOTE: Thread compound must be applied. Not doing so may prevent the units from being separated in the future.

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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)

*Cable requirements: 75 ohms impedance

All-copper center conductor All-copper braided shield with 95% braid coverage

Table B. 24 VAC/24VDC Wiring Distances

The following are the recommended maximum distances for 24 VAC and 24 VDC applications and are calculated with a 10 percent voltage drop. (Ten percent is generally the maximum allowable voltage drop for AC- or DC-powered devices.)

AC/DC		Wire Gauge
Total VA/	20 AWG	18 AWG	16 AWG	14 AWG
Total Watts	(0.5 mm2)	(1.0 mm2)	(1.5 mm2)	(2.5 mm2)
23 VA/	123 ft	196 ft	311 ft	495 ft
15 watts	(38 m)	(60 m)	(95 m)	(151 m)
73 VA/	39 ft	62 ft	98 ft	156 ft
65 watts	(12 m)	(19 m)	(30 m)	(48 m)

NOTE: Input power for the dome is 24 VAC or 24 VDC. Using 24 VAC input power, power consumption is 23 VA per dome for indoor models and 73 VA for outdoor models. Using 24 VDC input power, power consumption is 0.7 A (15 watts) for indoor models and 3 A (65 watts) for outdoor models.

Use a 24 VAC trasnformer with the following minimum VA:

40 VA per dome	For indoor models (without heater)
100 VA per dome	For outdoor models (with heater)
.	Table C. UTP Wiring Distances
	Receiver	Maximum Distance
	Active	0-3,000 ft
	(Video Only)	(0-914.4 m)
	Passive	0-750 ft
	(Video, Coaxitron, Pelco V-Sync)	(0-228.6 m)

NOTE: As a minimum, UTP requires Cat5, 100-ohm twisted pair cable

C3420M (8/06) 3