Installation Instructions

Installation
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N okia Proprietary and C o n f idential I ssue 2 D RAFT 1 - en Status
T able 10. M TAV formula
Figure 38. Optical attenuation m easurem ent result (OTD R display )
A.4.2 Optical length measurement
Power back-reflection technique has to be assumed as the reference
computing the fibre optic length.
The Subcontractor has to carry out an end-to-end measurement report
optic length using the model shown in Section 6, which has to be i
n
installation test documentation.
A.4.3 Back reflected power diagram
Fibre optic attenuation has to be uniformly spread without any hig
h
per the technical specification described in Section 5. The condit
i
tested and reported by means of the back-reflected power diagram i
n
installation documentation.
A.4.4 Optical link check
In order to verify installation activities and tests not to cause
a
between uplink and downlink, a link check by means of a visible opt
required, even if no test report must be provided by the Subcontra
c
Figure shows how to connect the Optical Source and the Power Mete
r
perform the link check for uplink and downlink.
T1
T2
T3
L aunching
Fibre
MarkerMarker
G1
G2
G3
G4
L aunching
Fibre