Installation Instructions

Installation
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I ssue 2 D RAFT 1 - en N okia Proprietary and C o n f idential
Figure 18. Example of a perfect splice
5.6.1 When splicing is required
Splices are required for the following reasons:
• The cable runs are too long for one straight cable pull
• You need to mix a number of different types of cable
• You need to connect a buried cable.
5.6.2 Types of splicing
Fibre splicing is accomplished by one of the following metho
d
• Mechanical
• Fusion
Mechanical splicing
Mechanical splicing employs a splicing machine intended to vi
s
single fibre and then mechanically join the two fibre ends. Th
e
in a relatively small enclosure which is typically pre-loaded
The index matching gel is placed in the splice to achieve high
low loss.
Mechanical splices are best used for multimode fibres.