Installing The Cpri Optical Cable; Figure 15-35 Installing The Optical Module - Huawei DBS3900 Installation Manual

DBS3900(ICR)
Installation Guide
Step 4 Use cable ties to bind cables.
Step 5 Label the installed cables by referring to Attaching an L-Shaped Label.
----End

15.11 Installing the CPRI Optical Cable

This section describes the procedure for installing the CPRI optical cable.
Context
l
l
l
Procedure
l
Issue 01 (2011-03-30)
The single-mode optical module is labeled "SM" and multi-mode optical module is labeled
"MM".
If the puller of an optical module is blue, the module is a single-mode optical module. If
the puller of an optical module is black or grey, the module is a multi-mode optical module.
The optical module to be installed must have a matching rate with the corresponding CPRI
port.
Installing the CPRI optical cable for the DC RRU
1. Wear an ESD wrist strap or a pair of ESD gloves.
2. Turn the puller of each optical module outwards, insert the optical module into the
CPRI port on the BBU and the CPRI_W or CPRI0 port on the RRU respectively,
and then turn the puller inwards, as shown in

Figure 15-35 Installing the optical module

3. Connect one end of the CPRI optical cable to the CPRI_W port on the RRU.
4. Connect the other end to the CPRI port on the BBU.
5. Route the optical cable in the cable trough by referring to
CAUTION
l When routing optical cables, coil the cables and place them on the top center of
the upper-level IMB03 to ensure that the holes for heat dissipation are not covered.
l The minimum bending radius of the fiber is 140 mm. When coiling the optical
cable, do not bend it excessively.
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15 Installing Cables
Figure 15-35.
Figure 15-36.
15-61