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P0992639 01 Modular ICS Companion Installer Guide
Installing an outdoor omni-directional external antenna
(Canada)
When installing an outdoor omni-directional external antenna:
• Locate the antenna on the external wall of the building.
Note: The antenna must be mounted on a vertical surface.
• Keep the outdoor omni-directional external antenna as
close as possible to the base station serving it. The base
station itself must be indoors. The recommended mounting
height is 4 m to 5 m above ground level.
• Always install a surge protector between an outdoor
omnidirectional antenna and a base station.
Note: The connector on the outdoor omni-directional antenna
is a TNC female connector, so you need an adapter to
connect it to the standard BNC co-axial cables needed
for the surge protector and the base station. You can
also use a co-axial cable with a TNC male connector on
one end and BNC male connector on the other end.
Fit lightning protection to the antenna if
appropriate. Refer to Installing a lightning surge
arrestor (USA) on page 39.
Important points to remember:
• Do not install the external antenna or the lightning
surge protector during an electrical storm.
• Always turn off the base station power before
connecting the co-axial cable of an outdoor external
antenna.
• Always install the antenna at the cable entry point into
the building.
• Connect the lightning surge protector to ground
before connecting the co-axial cable.