Installation Instructions

Installation
76 (79) © N okia Corporation D N 00203719
N okia Proprietary and C o n f idential I ssue 2 D RAFT 1 - en Status
A.5.1 Fibre optic
T able 11. Fibre optic specifications and values
A.5.2 Splice and connector
T able 12. Splice and connector specifications and values
A.5.3 Measurement parameters
Time-domain impulse to perform back-reflected power technique meas
has to be chosen in connection with the fibre optic length, in ord
e
measurement result reliability (See Table 10).
Specification Value
Fibre optic type
SM-R (9/125
µm)
W aveleng th (nm ):
II w indow
1310
± 10
III w indow
1550
± 10
S pecific attenuation (dB/Km):
II w indow 0 .40
III w indow 0 .22
High loss spot (dB)
≤0.1
Specification Value
Splice ACR (dB/item ) < 0.2
C onnector ACR (dB/
item )
<0.5
C onnector RL (dB)
≥ 55