Enb Grounding; Figure 3-18: Grounding Screws - Baicells Nova436Q Installation Manual

Nova436Q Outdoor 4x1W Two-Carrier TDD eNodeB Installation Guide
4. The copper bar must be used for the grounding bar, and the specification of the grounding bar
shall meet the design requirements. If there are no specific requirements in the design,
12 x 1.5 x 0.16 in (300 × 40 × 4 mm) and fixed with expansion bolts.
5. The grounding wire must be made of the whole cable material, the intermediate joint is strictly
prohibited, and the excess length should be cut. The skin shall be complete, and the insulation
resistance of the core wire to the ground (or metal isolation layer) shall meet the technical
requirements of the cable.
6. The grounding wire shall be connected to the integrated grounding bar of the building. If it is
impossible to connect to the integrated grounding bar of the building, the appropriate grounding
point can be selected according to the integrated grounding situation of the indoor building. The
selection of grounding point must be higher than the grounding grid, and the feeder grounding
shall be towards the downward direction of the feeder, never upward.
7. The grounding electrode of the self-built grounding grid for the outdoor antenna of the tunnel
must meet the design requirements. The buried depth of the grounding electrode and the welding
quality of the flat iron meet the specification requirements. In principle, the buried depth of the
grounding electrode shall not be less than 27.5 in (0.7 m). The non-self-built grounding network
shall be connected to the grounding network of the owner.
8. The eNB grounding, power adapter grounding, distribution box grounding and feeder grounding
must be connected to the grounding bar independently, and the grounding bar must have a path
from the lead to the earth.

3.5.2 eNB Grounding

Prepare the grounding cable according to the actual measurements and requirements of the specific
installation site. The Nova436Q eNB has two grounding screws located on the bottom of the unit in
Figure 3-18
Follow the steps below Figure 3-18 to connect the ground cable.
NOTE: All Nova eNBs have a floating ground on the power system.

Figure 3-18: Grounding Screws

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.
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