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8 Pelco Manual C324M-I (8/98)
Table A. Requirements to Wire 24 VAC Power to Pan and Tilt Motors
Model Wire Size Maximum Distance “A” Maximum Distance “B” Maximum Distance “B”
(AWG) (5 Conductors*) (5 Conductors*) (6 Conductors**)
All models 20 5,800 ft (1,768 m) *** 110 ft (33.53 m) 210 ft (64.01 m)
18 8,250 ft (2,515 m) 180 ft (54.86 m) 330 ft (100.58 m)
16 13,000 ft (3,962 m) 290 ft (88.39 m) 530 ft (161.54 m)
IMPORTANT NOTE: If RB24 Relay Box is not used, maximum cable length is distance “B.”
* Conductors are for up, down, left, and right functions, plus motor common. Cable distances are calculated with both motors
(pan and tilt) running and assuming a 10% voltage drop in the cable.
** Same as five conductors except two wires are used for motor common.
*** Not recommended for reliable service between control and relay box.
A
B
24 VAC
CONTROLLER
RB24
RELAY
BOX
REQUIRES EXTERNAL
POWER SUPPLY