Huawei DBS3900 Installation Manual page 150

DBS3900 (ICR)
Installation Guide
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The performance of an optical module may deteriorate if it is exposed to the air for more than
20 minutes. Therefore, insert a fiber optic cable into an unpacked optical module within 20
minutes.
The optical modules to be installed must match the rates of their corresponding ports. For
example, the FE1 port (optical transmission port) on a GTMU/GTMUb /GTMUc supports only
the transmission rate of 100 Mbit/s and therefore can only use an optical module supporting the
transmission rate of 100 Mbit/s. If the port uses an optical module supporting the transmission
rate of 1000 Mbit/s, the transmission link may be disconnected.
Procedure
Step 1 Install an optical module, as shown in
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5.
Issue 12 (2015-04-30)
The puller of a single-mode optical module is blue. The puller of a multimode optical
module is black or gray.
An FE/GE optical cable has an LC connector at one end and an FC connector, SC connector,
or LC connector at the other end.
SFP0 and FE/GE0 ports on the LMPT are used for one GE input. Therefore, they are not
used simultaneously.
SFP1 and FE/GE1 ports on the LMPT are used for another GE input. Therefore, they are
not used simultaneously.
This section describes how to install FE/GE optical cables in a GU base station using
independent transmission. For the FE/GE optical cable connections in other configuration
scenarios, see section "Transmission Cable Connections" in the DBS3900 Hardware
Description.
NOTICE
NOTICE
Remove the dustproof cap from the corresponding FE/GE optical port on the corresponding
BBU board.
Remove the dustproof cap from the optical module.
Lower the puller on the optical module.
Insert the optical module into the FE/GE optical port.
Raise the puller on the optical module.
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Figure 15-39 and Figure
15 Installing Cables
15-40.
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