Bosch UHI-OG-0, Руководство пользователя

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20 en | Installation UHI/UHO Series
F.01U.026937 | V 2.0 | 2007.01 User Manual Bosch Security Systems
wire. Failure to do this will result in water damage to all
electronic parts.
4. Attach the foot to the top bracket of the mount.
5. Be sure that the holes in the rear cap are covered with the
rubber plugs provided. Push in until flush and then release.
4.7.4 Power Connections
Power into the housings is to be supplied using type UL Stan-
dard SJ cord (or better) acceptable for outdoor use. Installa-
tion must conform to NEC 400-4 CEC rule 4-010 and be marked
with OUTDOOR, W, or W-A. For 24-volt cameras, use the recom-
mended maximum cable lengths chart for selecting the proper
wire size.
Wire sizes larger than 2.5 mm
2
(14 AWG) require a splice to
accommodate the terminal block.
1.
If using the feed-through option, ignore this step. Install
one of the large 1/2-inch NPT fittings into one of the holes
in the rear cap.
2. Route the power cable through the fitting in the rear cap or
one of the feed-through fittings in the foot.
The terminal block accepts wire ranging from 0.5 mm
2
to
2.5 mm
2
(20 AWG to 14 AWG). When using larger wire
sizes, splice to a smaller size wire at the terminal block
end. The splice may need to be enclosed in a junction box
if it does not pass through the fittings.
3. Connect the safety (earth) ground:
A terminal lug is provided for connecting the external
safety (earth) ground to the grounding post on the PCB
bracket assembly. See Figure 4.7 .
Wire size mm
2
Wire size AWG Distance m (ft)
0.5 20 27 (90)
1 18 42 (140)
1.5 16 67 (220)
2.5 14 108 (355)
4 12 172 (565)
Table 4.6 Recommended maximum cable lengths for housings equipped
with 24-volt cameras, heaters, and blowers