CABLE CONNECTIONS AND REQUIREMENTS

Table A. Wiring Distances

The following are the recommended maximum distances to wire the WCS1-4 to a Spectra III or Esprit positioning system.

To determine the correct voltage tap:

1.Pick the unit type.

2.Find the wire gauge used (22 gauge is not recommended).

3.Determine which secondary output tap (A, B, or C) is appropriate for the distance between the dome or positioning system and the WCS1-4. Distance is in feet (meters).

MAXIMUM DISTANCE FROM TRANSFORMER TO LOAD

Power Consumption

20 AWG

18 AWG

16 AWG

14 AWG

12 AWG

(25 VA)

(0.5 mm2)

(1.0 mm2)

(1.5 mm2)

(2.5 mm2)

(4.0 mm2)

 

 

 

 

 

 

Tap A (24 VAC)

113 (34)

180 (55)

287 (87)

455 (139)

725 (221)

 

 

 

 

 

 

Tap B (26 VAC)

133 (40)

212 (64)

337 (103)

536 (163)

852 (260)

 

 

 

 

 

 

Tap C (28 VAC)

155 (47)

246 (75)

392 (119)

623 (190)

990 (302)

 

 

 

 

 

 

Power Consumption

20 AWG

18 AWG

16 AWG

14 AWG

12 AWG

(50 VA)

(0.5 mm2)

(1.0 mm2)

(1.5 mm2)

(2.5 mm2)

(4.0 mm2)

 

 

 

 

 

 

Tap A (24 VAC)

56 (17)

90 (27)

143 (43)

228 (69)

362 (110)

 

 

 

 

 

 

Tap B (26 VAC)

66 (20)

105 (32)

168 (51)

268 (81)

425 (129)

 

 

 

 

 

 

Tap C (28 VAC)

77 (23)

122 (37)

195 (59)

311 (94)

493 (150)

 

 

 

 

 

 

Power Consumption

20 AWG

18 AWG

16 AWG

14 AWG

12 AWG

(70 VA)

(0.5 mm2)

(1.0 mm2)

(1.5 mm2)

(2.5 mm2)

(4.0 mm2)

 

 

 

 

 

 

Tap A (24 VAC)

41 (12)

64 (19)

102 (31)

163 (50)

259 (79)

 

 

 

 

 

 

Tap B (26 VAC)

49 (15)

78 (24)

124 (38)

198 (60)

315 (96)

 

 

 

 

 

 

Tap C (28 VAC)

55 (17)

88 (27)

135 (41)

222 (68)

353 (107)

 

 

 

 

 

 

C561M-F (8/06)

7

Page 7
Image 7
Pelco C561M-F manual Cable Connections and Requirements, Table A. Wiring Distances