Pelco C2478M-B-ML Use a 24 VAC transformer with a minimum of 100 VA, Cable Type, Maximum Distance

Table A. Video Coaxial Cable Requirements

Cable Type	Maximum Distance
RG59/U	750 ft (299 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

Table B. 24 VAC Wiring Distances

Wire Gauge

Total VA	20	18	16	16
	(0.5 mm2)	(1.0 mm2)	(1.5 mm2)	(2.5 mm2)
75	37 ft	60 ft	95 ft	153 ft
	(11 m)	(18 m)	(29 m)	(46 m)

NOTE: These are the recommended maximum distances for 24 VAC appli- cations and are calculated with a 10 percent voltage drop. (Ten percent is generally the maximum allowable voltage drop for AC-powered devices.)

NOTE: Input power for the dome is 24 VAC only. Power consumption is 75 VA per dome.

Use a 24 VAC transformer with a minimum of 100 VA.

Table C. Configuration of Wire Harness

Pin	Wire Color		Function
	9-Conductor Cable
A	Black		Alarm 1
B	Red		Alarm 2
C	White		Alarm 3
D	Green		Alarm 4
E	Brown		Alarm 5
F	Orange		Alarm 6
G	Yellow		Alarm 7
H	Violet		Ground
–	Blue		Not Used
	5-Conductor Cable
J	Black		Relay N.O. (Aux. 1)
K	Red		Relay N.C. (Aux. 1)
L	Green		Relay Common (Aux. 1)
M	Brown		Ground
N	White		Auxiliary 2
		Cat5 Cable
P	Green		TX+
R	White/Green		TX-
S	Blue		RX-
T	White/Blue		RX-
U	Orange		UTP Video (+)
V	White/Orange		UTP Video (-)
W	Brown		Spare
X	White/Brown		Spare
		Coaxial Cable
Y	Coaxial Core		Video Out
Z	Coaxial Shield		Video Shield
	Individual Wires
a	White		24 VAC (AC HI)
b	Black		24 VAC (AC LO)
c	Green/Yellow		Earth Ground

English

C2478M-B-ML (2/05) 7