This post refers to the RRU power cable. Please have a read below in order to find more details.
The RRU power cable
The RRU power cable is a -48 V DC shielded cable. It feeds -48 V DC power to an RRU. The length of power supply that an RRU power cable supports is 100 m (328.08 ft) by default.
NOTE:
- The maximum length of power supply that an RRU power cable supports is 150 m (492.12 ft). Contact Huawei engineers when an RRU power cable greater than 100 m (328.08 ft) is required.
- If a power device provided by the customer is used, the recommended specification of the circuit breaker on this power device is 15 A to 30 A.
Exterior
A tool-less female connector (pressfit type) needs to be added to one end of the RRU power cable and a corresponding terminal needs to be added to the other end based on the requirements of the connector on the external power device, as shown in Figure 1.
(1) -48 V DC power cable | (2) Shield layer | (3) Tool-less female connector (pressfit type) |
The outer diameter of the RRU power cables ranges from 9.9 mm to 14.4 mm. Table 1 lists the specifications of an RRU power cable.
RRU Type | National Standard | Remote Distance | Cross-Sectional Area of the Cable | OCB Quantity |
|---|---|---|---|---|
RRU3824 or RRU3826 | European standard | 0m to 100m | 4mm2 | 0 |
American standard | 0m to 100m | 3.3mm2 | 0 |
Table 2 lists the wire colors of an RRU power cable.
Cable | Wire | Wire Color in Most Regions | Wire Color in Other Regions | ||
|---|---|---|---|---|---|
North American Standard | European Standard | UK | China | ||
RRU power cable | RTN(+) | Black | Brown | Blue | Red |
NEG(-) | Blue | Blue | Gray | Blue | |
