Cable Type

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)

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