Pelco Manual C1456M-D (10/98) 17

Table A. Video Coaxial Cable Wiring Distances

Cable Type* Maximum Distance
RG59/U 750 ft (229 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

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

EXAMPLE:

A dome that requires90 vA and is installed 31 feet (9 m)from the transformer would requirea minimum wire gauge of 20 Awg.
NOTE:
Distances are calculatedin feet; values in parentheses aremeters.

Wire Gauge

Maximum distance from transformer to load
20 18 16 14 12 10
10 283 451 716 1142 1811 2880
(86) (137) (218) (348) (551) (877)
20 141 225 358 571 905 1440
(42) (68) (109) (174) (275) (438)
25 113 180 286 457 724 1152
(34) (55) (87) (139) (220) (351)
30 94 150 238 380 603 960
(28) (45) (72) (115) (183) (292)
40 70 112 179 285 452 720
(21) (34) (54) (86) (137) (219)
50 56 90 143 228 362 576
(17) (27) (43) (69) (110) (175)
60 47 75 119 190 301 480
(14) (22) (36) (57) (91) (146)
70 40 64 102 163 258 411
(12) (19) (31) (49) (78) (125)
80 35 56 89 142 226 360
(10) (17) (27) (43) (68) (109)
90 31 50 79 126 201 320
(9) (15) (24) (38) (61) (97)
100 28 45 71 1 14 181 288
(8) (13) (21) (34) (55) (87)
110 25 41 65 1 03 164 261
(7) (12) (19) (31) (49) (79)
120233759 95150240
(7) (11) (17) (28) (45) (73)
130213455 87139221
(6) (10) (16) (26) (42) (67)
140203251 81129205
(6) (9) (15) (24) (39) (62)
150183047 76120192
(5) (9) (14) (23) (36) (58)
160172844 71113180
(5) (8) (13) (21) (34) (54)
170162642 67106169
(4) (7) (12) (20) (32) (51)
180152539 63100160
(4) (7) (11) (19) (30) (48)
190142337 60 95151
(4) (7) (11) (18) (28) (46)
200142235 57 90144
(4) (6) (10) (17) (27) (43)
Total vA consumed