Huawei BBU3900 Installation Manual page 11

Installing the BBU in the APM30
b
Installing the BBU Cables
FE/GE surge
protection transfer
cable
7. Install the monitoring
signal cable between the
APMI and the BBU.
7.1. Fix the RJ45 connector at one end of
the cable to the MON1 port on the UPEU.
7.2. Cut off the RJ45 connector at the
other end of the cable on site, and then
connect the four exposed wires to the RX+,
RX-, TX+, and TX- ports on the APMI.
5. Install the FE/GE surge protection transfer
cable (FE/GE transmission mode).
Connect one end of the FE/GE surge protection transfer
cable to the FE0 port near the INSIDE label on the UFLP and
the other end to the FE0 port on the GTMU.
6. Install the FE/GE cable (FE/GE
transmission mode).
6.1. Connect one end of the FE/GE cable to the FE0 port near
the OUTSIDE label on the UFLP. Then, lead the other end out
of the cabinet along the right side of the cabinet.
FE/GE
6.2. Thread the FE/GE cable through the grounding clip. Then,
cable
tighten the screw on the grounding clip to make the shielding
layer of the FE/GE cable in full contact with the grounding clip.
Finally, connect the PGND cable on the grounding clip to the
ground bolt of the APM30.
10
The shielded straight-through cable must be
used as the FE/GE Ethernet cable.
Shielding layer
of the FE/GE
cable
(25 mm)