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28 PELCO Manual C460M-E (7/95)
Fuse Protection: 3 AG type
Control Method: 15-pulse train (pulse width modu-
lated) superimposed on the video sig-
nal during the vertical interval by the
control transmitter. Pulse train occu-
pies one TV line period.
Input Video Line:1 v p-p nominal; 2v p-p maximum at
less than 75% APL; 1.5v p-p maxi-
mum at 90% APL.
System
Bandwidth: Less than 2 dB down at 10 MHz
Operating
Distance: 750 feet (228m) on RG59U
1,500 feet (457m) on RG6
1,800 feet (548m) on RG11
(75 ohm coax required)
GENERAL
Enclosure
Dimensions: See Figures 1 and 2
Construction:
Upper Box Formed aluminum
Lower Dome Acrylic hemisphere with distortion
free viewing window
Finish: Polyvinyl powder coat
Weight:
ED28 25 lbs (11.34 kg)
ED28-1 27 lbs (12.25 kg)
ED2820, ED2820-3
ED2820-SL,
ED2820-3SL/PP,
ED2820SL/PP 35 lbs (15.75 kg)
ED2820-RX,
ED2820SL-RX,
ED2820SL-RX/PP,
ED2820-WX,
ED2820SL-WX 42 lbs (18.90 kg)
ED29,
ED2920 Series 47 lbs (21.291 kg)
Temp. Range: -10°F to 140°F (-23°C to +60°C)
14.0 ENCLOSURE SPECIFICATIONS
MECHANICAL
Enclosure
Dome Drive: Dome rides on rollers and is driven
by drive arm of pan/tilt
Max. Camera/Lens
Length: 14.0 inches (35.5 cm)
ELECTRICAL
Enclosure (All models except ED28/ED29)
Input Voltage: 120 VAC 50/60Hz (or 230 VAC, 50/
60 Hz for ED2820-3 and ED2820-
3SL/PP, ED29-3)
Power
Requirements: 180 vA (or 185 vA for ED2820-3 and
ED2820-3SL/PP only)
Blower: 80 cfm at 13 watts (or 90 cfm at 15
watts for ED2820-3 and ED2820-
3SL/PP only)
Heaters: Two (2) at 80 watts each
Service Light: One (1) at 7 watts (or One (1) at 10
watts for ED2820-3 and ED2820-
3SL/PP only)
Power Cable
Requirements: 3-wire grounded, 18 Awg (supplied
on “RX” versions only)
Receiver
(Models ED2820-RX, ED2820SL-RX, ED2820-RX/
PP, ED2820SL-RX/PP, ED2820-WX, ED2820SL-WX,
ED2920-RX, and ED2920SL-RX only)
Power Cord: 3 wire grounded, 18 Awg (supplied)
Cables: Coaxitron
Video: RG59 with BNC jack
Control: RG59 with BNC jack
Wiretron
Video: Coax
Control: Twisted pair, unshielded
Input Voltage: 120 VAC, 50/60Hz
Power
Requirements: 79 vA (receiver only)