Installing Crpi Optical Cables - Huawei DBS3900 Installation Manual

LampSite
Installation Guide
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Follow-up Procedure
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5.4.7 Installing CRPI Optical Cables

Optical fibers can be used to interconnect BBU and RHUB3908s, or cascade RHUB3908s.
Context
l
l
l
l
The performance of an optical module that is exposed to the air for more than 20 minutes may
be abnormal. Therefore, you must insert a fiber optic cable into an unpacked optical module
within 20 minutes.
Procedure
Step 1 Install an optical module, as shown in
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Issue 08 (2015-01-15)
NOTE
The pRRU3901 can have two transmission ports plus PWR port or three transmission ports (plus PWR
port or no PWR port). The Ethernet cable connection between the pRRU3901 in any appearance and the
RHUB3908 is similar. This section uses the pRRU3901 with three transmission ports plus no PWR port
as an example.
Route the cable, and then use a cable tie to bind the cable. For details, see
Requirements for Cable
Label the installed cable. For details, see section
Multi-mode optical modules for CPRI ports are labeled MM and each has a black or gray
puller.
Single-mode optical modules are labeled SM and each has a blue puller.
For details about the connection of CPRI optical cables, see Typical Networking in
LampSite Technical Description and CPRI Optical Fiber in LampSite Hardware
Description.
An optical module to be installed must match the rate of its corresponding port.
NOTICE
Remove the dust-proof cap from the CPRI port on the RHUB3908 panel.
Remove the dust-proof cap on the optical module.
Lower the puller of the optical module.
Insert the optical module into the CPRI port on the RHUB3908, BBU or ODF.
Raise the puller of the optical module.
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Layout.
8.3 Attaching an L-Shaped
Figure 5-33 and
5 Installing an RHUB3908
Figure 5-34.
5.4.1
Label.
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