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Nova846 Outdoor 8x5W Two-Carrier TDD eNodeB Installation Guide
Figure 3-11: Connect Cables and Grounding Screws
NOTE: All Nova eNBs have a floating ground on the power system.
1. Unscrew one grounding screw, connect one end of the ground cable to the grounding
screw, and retighten the screw.
2. Repeat
step 1
for the second grounding screw.
3. Once the eNB is installed at the outdoor location, the other end of the ground cable needs
to connect to a good earth grounding point.
Before installing the eNB at its final destination, perform the steps in
successful testing, the eNB will be ready for installation at the cell site. Seal and weatherproof all
the connection points, and rustproof where needed.
3.5.3 Pole Grounding
The purpose of pole grounding is to protect the equipment as much as possible from potential
damage of lightning overvoltage. However, the interfaces between the eNB and the outside world
mainly include power system, grounding system, antenna feeder and lightning receiving device,
and signal line. Therefore, any damage caused by lightning primarily comes from the voltage
difference between the equipment in the eNB and one or more of the four interfaces. The pole
grounding is shown in Figure 3-12.
sections 3.7
23
and 3.8. Upon
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