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Nova846 Outdoor 8x5W Two-Carrier TDD eNodeB Installation Guide
Table 2-4: Interfaces
Interface Name
ETH0
ETH1
PWR
ANT0 – ANT3
ANT4 – ANT7
CAL/GPS
2.3 Grounding and Lightning Protection
You must protect the eNB, antenna, and GPS against lightning. All Nova eNBs have a floating ground
on the power system. Following are guidelines concerning grounding.
The yellow-green ground wire must be at least 5 AWG (16 mm
Always place the grounding as near as possible to the equipment.
Connect to a reliable outdoor grounding point (earth) using one ground screw.
The connection of the grounding points and ground bar needs to be tight and reliable.
Rustproofing the terminals, e.g., with antioxidant coating or grease, is required.
2.4 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.
Description
Ethernet interface 1: 1 optical (SFP) and 1 RJ-45 interface, which is used for
data backhaul. Connect to external transmission network.
Ethernet interface 2: 1 optical (SFP) and 1 RJ-45 interface, which is used for
data backhaul. Connect to external transmission network.
Power supply: -48 V (-40 V to 57 V) DC
Connects to external high-gain antenna 0 to antenna 3. N-type connector.
Reserved for future use.
CAL is used for antenna alignment.
GPS is the port for optional external GPS antenna. N-type connector.
13
2
) diameter.
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