User Manual

December 16, 2002 Part 003609A revision 01 35
Chapter 2: Site Preparation
Antenna Mounting Locations
The NPM uses two antennas (main and diversity) per sector. Ensure that your
tower can support the number of antennas shown in Table 2.15.
NOTE: See the specifications of your antennas for information
about size and weight requirements.
GPS Antenna Mounting Locations
The NPM requires two 1-inch diameter hollow pipes for mounting the two GPS
antennas.
Cabling Requirements
Ensure that your site has the necessary cable racks and ladders to accommodate
an NPM and that your site has external cable access ports for the GPS and RF
antenna cabling. The E1 package contains the cable layout specific to your site.
Fire Protection System
SOMA Networks recommends a fire protection system for the site.
Lighting
The site must have sufficient lighting to conduct work in a safe manner.
Emergency lighting is recommended.
Sectors Supported by NPM Required Antennas
12
24
36
48
510
612
Table 2.15 NPM Antenna Requirements