Location And Environment; Grounding And Lightning Protection; Weatherproofing; Table 2-5: Environmental Specifications - Baicells Nova436Q Installation Manual

Nova436Q Outdoor 4x1W Two-Carrier TDD eNodeB Installation Guide

2.3 Location and Environment

The Nova436Q can be installed on a pole or a wall. For the best signal coverage, place the eNB in an
unobstructed location. In addition to network planning, when determining where to place the eNB consider
factors such as climate, hydrology, geology, the possibility of earthquakes, reliable electric power, and
transportation access. Avoid locating the eNB in areas with extreme temperatures, harmful gases, unstable
voltages, volatile vibrations, loud noises, flames, explosives, or electromagnetic interference (e.g., large
radar stations, transformer substations). Avoid areas prone to impounded water, soaking, leakage, or
condensation. Environmental specifications are shown in Table 2-5.

Table 2-5: Environmental Specifications

Item
Operating Temperature
Storage Temperature
Relative Humidity
Atmospheric Pressure
Safety Voltage

2.4 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.

2.5 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
-40°F to 131°F / -40°C to 55°C
-49°F to 158°F / -45°C to 70°C
5 % to 95 % RH
70 kPa to 106 kPa
42 V to 58 V
14
2 ) diameter.