Installation Instructions
Installation
48 (79) © N okia Corporation D N 00203719
N okia Proprietary and C o n f idential I ssue 2 D RAFT 1 - en Status
WARNING
Note
• Point-to-point
• Point-to-multipoint.
Point-to-point mode
The MU is installed in the centre of the building. Twin fibre opti
c
each RU to the MU.
Point-to-multipoint mode
The main fibre optic cable contains up to 64 optical fibres. An RU
by separating the fibres from the main cable using a distribution
b
5.7.1.2 Connecting the fibres between the Local Unit and the Remote Unit
All fibre optic related work activities must only be performed by
s
qualified and approved personnel.
Figure shows the MU fibre optic cable channeling.
Pigtails are used between the Local Units (LUs) and the splice cas
s
splices are arranged in the splice cassette box.
In the case of RUs, pigtails are used between the RU and the splic
e
arranged inside the splice holder.
To connect the fibre optic cables:
1. Locate the fibre optic cables from the RUs.
Check the following:
• Each cable has an identifying label.
• The cables are long enough for the splicing operation.
2. Check that the splicing tools are available and arrange the sp
area.
3. Check that every LU is correctly plugged into the MU.
4. Starting from the LU at the top of the MU (LU 1), select the co
labelled pigtail. Remove the connector cap.
5. Clean the optical connector and connect the pigtail to the cor
r
the LU.