Installation Manual Part 2

Company Proprietary
Adaptive Broadband
U-NII Product Installation Manual 05/29/2001
10-5
Table 10-5 Environmental Specifications
Item Operating
Temperature Range,
min
Operating
Temperature Range,
max
Operating Humidity,
max
Subscribe Unit,
Access Point and
AB-Access Extender
-40°C (-40°F)
55°C (131°F)
100
10.5.2 Grounding
Article 810 of the U.S. National Electric Department of Energy Handbook 1996 specifies that
radio and television lead-in cables must have adequate surge protection at or near the point of
entry to the building. The code specifies that any shielded cable from an external antenna must
have the shield directly connected to a 10 AWG wire that connects to a building ground
electrode.
10.5.3 Electrical Specifications
The Subscriber Unit is powered from a typical notebook-style power supply that is included with
the unit. This power supply is plugged into a standard 110/220 VAC main (or a UPS unit) and
the output supply of 48 VDC is plugged into a wall box which feeds the –48 VDC through the
CAT5 cable to the installed units, reference Figure 9-3. The power supplies used to convert 110
VAC to 48 VDC are 80% efficient at this load.
Wire shield to
grounding
post and to
grounding rod