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2.5 Grounding & Lightning Protection
You must protect the Nova-243 eNB, GPS, external antenna, and RJ-45 port against lightning.
The eNB has two ground screws which are located on the bottom of the unit. You must connect
the ground screws to a reliable outdoor grounding point (earth) using yellow-green ground
wire that is at least 16mm
2
in diameter. The eNB uses a floating ground on the power line.
In principle, always place the grounding as near as possible to the equipment. Ensure that the
connection of the grounding points and the ground bar are tight. Rustproof the terminals using
rust preventing paint, anti-oxidation coatings, grease, or similar solution.
2.6 Weatherproofing
To protect the connection points from weather and climate, clean each connection point
before installing cold shrink tubes, per the following (Figure 2–3).
1.
Insert the cable into the cold shrink tube.
2.
Tighten the connector.
3.
Push the cold shrink tube to the top joint, and pull out the strip.
4.
Ensure the cold shrink tube is tightly fitted with the connection.
Figure 2–3: Weatherproofing
