Huawei BBU3900 Installation Manual page 9

Installing the BBU in the APM30
b
Installing the BBU Cables
2. Install the CPRI optical cable.
CPRI1, or CPRI2 port on the GTMU panel of the BBU and the other end to the CPRI_W
port on the RRU.
1. Install power cable.
Connect the OT terminal of the power cable to the LOAD3
terminal of the PDU, and then fix the 3V3 connector of the
power cable to the PWR port on the BBU.
Connect one end of the optical cable to the CPRI0,
Winding pipe
The TX port on the BBU is connected to the RX port on the RRU.
The RX port on the BBU is connected to the TX port on the RRU.
8
LOAD3
The power cable is to be made
depending on field requirements.
Optical module
Puller
a. Insert the optical module into the CPRI0,
CPRI1, or CPRI2 port, and then turn
outwards the puller on the optical
module.
b. Insert one end of the CPRI optical cable
into the optical module, and then lead
the CPRI optical cable out of the
cabinet along the right side of the
cabinet.
c. Wrap the fiber tail with the winding pipe.
NEG(-)
RNT(+)
PWR