Huawei BBU3900 Installation Manual page 36

Installing the BBU in the APM30H(Ver.B)
c
Installing the BBU Cables
3. Install the E1/T1 surge protection transfer cable.
Fix the DB25 connector of the E1/T1 surge
protection transfer cable to the INSIDE port on
the UELP and the DB26 connector to the E1/T1
port on the GTMU.
4. Install the E1/T1 cable.
4.1. Cabling the E1/T1 cable.
4.2. Fix the DB26 connector of the E1/T1 cable
to the OUTSIDE port on the UELP.
Before soldering the connectors to the E1/T1
cable, ensure that both ends of the E1 cable are
disconnected from any devices. In addition, all
the connectors should be soldered to the cable.
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.
The shielded straight-through cable must be
used as the FE/GE Ethernet cable.
E1/T1 surge
protection transfer
cable
FE/GE surge
protection transfer
cable
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E1/T1
cable
FE/GE
cable