Installation guide

Page 36 of 206 Installing the hardware
553-3601-220 Standard 4.00 November 1998
Installing an indoor directional external antenna
The indoor directional external antenna comes with its own back plate for
mounting. The recommended mounting height on a wall is halfway between
the floor and the ceiling.
Note: For some applications (for example, a stairwell), it is possible to mount
the antenna on the ceiling.
Figure 1: Indoor directional external antenna
ATTENTION!
Do not install the external antenna or the lightning surge
arrestor during an electrical storm.
Always turn off the Base Station power before connecting the
coaxial cable of an outdoor external antenna.
Always install the lightning surge arrestor as close as
possible to the cable entry point into the building.
Connect the lightning surge arrestor to ground before
connecting the coaxial cable.