Installing Transmission Cables - Huawei DBS3900 Installation Manual

DBS3900 (Ver.B)
Installation Guide
Step 5 Run each cable that leaves the cabinet in the PVC corrugated pipe, and then tie the pipe to the
cable hole in the cabinet.
----End

7.5.4 Installing Transmission Cables

When a DBS3900 is deployed outdoors, transmission cables such as an E1/T1 cable, E1/T1
surge protection cable, FE/GE surge protection cable, FE/GE cable, or FE/GE optical cable must
be installed based on onsite requirements.
Context
Installing an E1/T1 Surge Protection Transfer Cable
An E1/T1 surge protection transfer cable connects the transmission board and surge protection
unit for transferring surge protection signals.
Context
Procedure
Step 1 Install an E1/T1 surge protection transfer cable, as shown in
1.
2.
Issue 06 (2011-09-15)
NOTE
Install the transmission cables based on the connections of transmission cables. For details, see the
BBU3900 Hardware DescriptionTransmission Cable Connections.
NOTE
The procedures for installing E1/T1 surge protection transfer cables in an APM30H and in a TMC11H are
the same. The following description is based on the procedure for installing an E1/T1 surge protection
transfer cable in an APM30H.
Link the DB26 connector at one end of the E1/T1 surge protection transfer cable to the E1/
T1 port on the GTMU, WMPT, or UTRP in the BBU, and then tighten the plastic screws
on the connector until the tightening torque reaches 0.25 N·m.
Link the DB25 connector at the other end to the INSIDE port on the UELP in the SLPU,
and then tighten the plastic screws on the connector until the tightening torque reaches 0.25
N·m.
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7 Outdoor Scenario with DC Power Supply (BBU Installed
Figure
in a TMC11H)
7-70.
198