2Pelco Manual C1403M (2/94)
2.0 INSTALLATION
CAUTION: Make certain that the mounting
surface is capable of supporting the full load of
the retaining plate, dome, camera mount and
camera.
Handle the lower dome with care so as not to scratch or
fingerprint the viewing window.
2.1 MOUNTING
The SB26 Series of discreet domes can be installed by
performing the following steps:
1. Place the retaining plate in a 2' x 2' ceiling tile
opening. Make sure it rests securely on the “T-
Bar”.
2. Install the guide wires to the “eye” bolt on the
top of the unit and tighten sufficiently to ensure
the retaining plate does not sag.
2.2 CAMERA MOUNTING
(Model SB26C Only)
Install the camera on the camera mount and position
the camera.
2.2.1 Conductor Requirements
If a camera is used with the SB26C, the following can
be used as guidelines for determining the maximum
wire lengths for a hard-wire system.
Camera Wire Length (120 VAC Camera @ vA)
Maximum Cable Distance
Cable Size 3 vA 6 vA 10 vA
14 Awg 87,466 43,733 26,240
16 Awg 54,830 27,415 16,449
18 Awg 34,548 17,274 10,364
20 Awg 21,715 10,857 6,514
Camera Wire Length (24 VAC Camera @ vA)
Maximum Cable Distance
Cable Size 3 vA 6 vA 10 vA
14 Awg 3,809 1,904 1,142
16 Awg 2,388 1,194 716
18 Awg 1,504 752 451
20 Awg 945 472 283
Coax Cable Distances
Cable Size Maximum Cable Distance
RG-59U 750 feet
RG-11U 1,800 feet
RG-6U 1,500 feet