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10 Pelco Installation Manual C2429M (3/01)
APPENDIX
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.
95% braided copper shield.
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.)
Wire Gauge
20 18 16 14 12 10
30 vA 94 ft 150 ft 238 ft 380 ft 603 ft 960 ft
(28 m) (45 m (115 m) (72 m) (183 m) (292 m)
75 vA 37 ft 60 ft 95 ft 152 ft 241 ft 384 ft
(11 m) (18 m) (29 m) (46 m) (73 m) (117 m)
NOTE: Input power for the dome is 24 VAC only. Power consumption is 30 vA
per dome for indoor models and 75 vA for outdoor models.
Use a 24 VAC transformer with the following minimum vA:
40 vA per dome For indoor models (without heater)
100 vA per dome For outdoor models (with heater)
Table C. Switch Settings for SW1
Control Type Switch Setting
SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 SW1-7 SW1-8
Coaxitron
®
OFF OFF OFF OFF OFF OFF OFF OFF**
P-Type Control ON OFF OFF OFF OFF OFF OFF OFF**
D-Type Control OFF ON OFF OFF OFF OFF OFF* OFF**
NOTES: Switches SW 1-3 through SW 1-6 MUST be OFF.
D-type control is RS-422 that is compatible with Pelco’s CM6700, MPT9500, CM8500, and Genex
®
controllers or with
American Dynamics control systems using the AD2083 Translator.
P-type control is RS-422 that is compatible with Pelco’s CM6700/CM9750/CM9760 and Genex
control systems.
* OFF- Use with controllers that have more than 32 presets.
ON- Use with American Dynamics controllers (32 presets).
** OFF - Use with all control systems except CM9502 with variable speed keyboards.
For CM9502 with fixed speed keyboards, set switch OFF.
ON - Use with CM9502 with variable speed keyboards for smoother joystick control.