Nortel Networks P0992639 01 manual Installation

Installation / 45

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.

P0992639 01 Modular ICS Companion Installer Guide