Huawei DBS3900 Installation Manual page 110

RRU3260
Installation Guide
Ensure that the RU power cable must be connected to the RU first and then to the power
device. The operations in the reverse sequence may cause component damage or personal
injury.
Procedure
Step 1 Connect the tool-less female connector (pressfit type) at one end of the RU power cable to the
power supply socket on the RU, as shown in
Figure 9-23 Installing an RU power cable
Ensure that the exposed shield layer of the power cable is properly tightened using the clip.
Step 2 Connect the connector at the other end of the RU power cable to the corresponding position
on the power device.
Issue 05 (2014-06-30)

A DCDU-11B/DCDU-12B can supply power to a maximum of six RUs. Ensure that the RU power
cable is connected to one of LOAD0 to LOAD5 ports on the DCDU-11B/DCDU-12B.
 One EPU can supply power to a maximum of six RUs. Ensure that the RU power cable is connected
to one of RU0 to RU5 ports on the EPU.
 When the RU power cable is connected to the EPU, the blue core wire in the tool-less female
connector (pressfit type) is connected to the upper port on the EPU, and the black/brown core wire is
connected to the lower port on the EPU.
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Figure 9-23.
9 Installing RU Cables
102