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Do not look or stare into optical fibers directly without eye protection.
Wind the external inter-office fibers properly on the ODF before thread them into the cabinet. Do not wind the
fibers inside the cabinet.
Internally cascaded fibers must be separate from the external fibers. Route the external fibers through the
cable-routing area on the rear of the cabinet and the internally cascaded fibers through the cable-routing area
on the front of the cabinet.
1. Before routing external fibers, remove the fiber spool of the subrack on this side.
2. After the fiber installation, insert fiber plugs in idle ports and cover idle fibers with fiber caps.
3. Choose a coiling fiber spool according to the length of redundant fibers. Wind the fibers around the big
spool first and then the smaller spool. The fibers should not be coiled too tightly or too loosely. Ensure that
the bending radius of fibers is not less than 30 mm.
NOTE
CAUTION
CAUTION
This procedure describes how to install and route T64 subrack fibers. The procedure for installing and routing T32/T16/universal
platform subrack fibers are similar.
NOTE
2 Open Corrugated Pipe
Internal pipe
External pipe
The open corrugated pipe cannot be loaded with too many optical fibers. A maximum of 60 fibers with 2 mm
diameter are recommended for an open corrugated pipe with 32 mm diameter. The length for the open
corrugated pipe to enter the cabinet is about 10 cm.
Installing and Routing Fibers
1 Precautions
NOTE
4.When routing and installing fibers onsite, you need to clean fiber end faces. For detailed operations,
see the multimedia at the following website:
http://support.huawei.com/carrier/docview!docview?nid=DOC1000132657
