Installation Manual

Nokia RoofTop™ Wireless Routing Installation Guide 15
Outdoor Installation Procedures
2.6.5 Grounding
WARNING: Because antennas are elevated metal objects with
connections to ground, they attract lightning. Attach an effective
ground to the antennas to provide a path for the lightning. Effective
antenna grounding also minimizes electrical noise and interference,
which can degrade system performance.
1. Provide a good, very low resistance wire connection from the antenna
mount and wireless router to earth ground.
2. Use #12 copper or aluminum wire connected to the metal antenna
support and a ground rod next to the building.
Grounding diagram
Antenna
Antenna Lead-in Wire
Lightning Arrestor
Electrical Service Equipment
Ground Rod
Weatherproof Connection
Grounding Conductors
#12 Copper or Aluminum
Ground Clamps