Pelco PT780-24SL/PPSA operation manual Table B. Requirements to Wire Power to Pan and Tilt Motors

NOTE: Operation of the pan/tilt unit at lower than 24 VAC will result in reduced load and speed capability.

Table B. Requirements to Wire Power to Pan and Tilt Motors

	Maximum Cable Length*
Wire Size	6 Conductors**	7 Conductors***
24 VAC
PT780-24P Models
20 AWG	59 ft. (17.98 m)	118 ft. (35.96 m)
18 AWG	94 ft. (28.65 m)	188 ft. (57.30 m)
16 AWG	149 ft. (45.41 m)	298 ft. (90.83 m)

*Cable distances are based on:

26.4VAC output from the controller and

10% cable loss with both motors (pan and tilt) running simultaneously

** Six conductors for operating pan and tilt motors:

Pin number in 37-pin connector	Function
3	Left
7	Right
6	Down
5	Up
1	Motor Common
8	Safety Ground

*** Same as six conductors except uses two wires for motor common.

Table C. Maximum Cable Distances Using RB24 or RB115 Relay Boxes

Wire Size	Maximum “A”	Maximum “B”
	Distance	Distance
			A	B
20 AWG*	5,800 ft. (1,768 m)
18 AWG	8,250 ft. (2,515 m)	Use Table B
16 AWG	13,000 ft. (3,962 m)
			CONTROL	RELAY
				BOX
				REQUIRED EXTERNAL
				POWER SUPPLY

* Not recommended for reliable service between control and relay box..

Pelco Manual C342M-PSA (11/98) 11