Table A. Video Coaxial Cable Requirements
Cable Type*
Maximum Distance
RG59/U
750 ft (229 m)
RG6/U
1,000 ft (305 m)
RG11/U
1,500 ft (457 m)
*Cable requirements:
75 ohms impedance
Table B. 24 VAC Wiring Distances
The following are the recommended maximum distances for 24 VAC applications and are calculated with a
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| 20 | 18 | 16 | 14 | 12 | 10 |
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consumedVATotal | 10 | 283 (86) | 451 | (137) | 716 (218) | 1142 | (348) | 1811 (551) | 2880 (877) | distanceMaximumfrom | totransformerload | |
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20 | 141 (42) | 225 (68) | 358 (109) | 571 (174) | 905 (275) | 1440 (438) | ||||||
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| 30 | 94 (28) | 150 (45) | 238 (72) | 380 (115) | 603 (183) | 960 (292) |
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| 40 | 70 (21) | 112 (34) | 179 (54) | 285 | (86) | 452 (137) | 720 (219) |
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| 50 | 56 (17) | 90 | (27) | 143 (43) | 228 | (69) | 362 (110) | 576 (175) |
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EXAMPLE: An enclosure that requires 30 VA and is installed 94 feet (28 m) from the transformer would require a minimum wire gauge of 20 AWG.
NOTE:
•Models with heaters require 24 VAC for the heater. The heater uses 53 VA. If the camera uses 24 VAC, add the camera power to that of the heater and refer to Table B to determine the size of wire to use.
•Distances are calculated in feet; values in parentheses are meters.
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