M90 Fusion Splicer 7-2 Operating Instructions
Troubleshooting and Care/Maintenance Issue 02/97
Troubleshooting
Basic
procedure for
troubleshooting
and fault elimi-
nation
Proceed in the following sequence for faults or fault messages relating to the splicer:
- In the case of fault messages which occur once only, repeat the action in question.
With the fault message "Bad endfaces", for example, restrip the fibers and recleave.
- If the problem is repeated, ensure that you are handling the fibers and operating the
splicer as set out in the Operating Instructions.
- If you are unable to detect the cause of the fault or if the fault is repeated, the follow-
ing subsection provides you with the possible causes of numerous problems and the
measures you should adopt to remedy them.
- A number of the remedies set out below require extreme care and should only be
performed by qualified personnel in a clean working environment. Perform this work
yourself only if you are unable to make use of the service center, e.g. because of
shortage of time, and if you are sure that the work can be performed correctly.
- Under no circumstances should you attempt to perform repair work which, according
to the table, may only be carried out at the service center.
Note
You should take due care when troubleshooting.
The manufacturer assumes no liability for damage as a result of the following work be-
ing performed incorrectly.
Parameter op-
timization for
single-mode
fibers
Note
Parameter optimization requires the electrodes to be in sound condition. Accordingly,
first check the electrodes.
The procedure for parameter optimization described in the following sections is suitable
for all commonly used single-mode fibers.
Accessories re-
quired
The M90 measures the splice loss using the LID system and the power through
method. As a result the attenuation displayed is independent of the set parameters. The
parameters can thus be optimized without additional test equipment.
If the LID is not usable, an external attenuation test set is required (e.g. an
OTDR
-
O
ptical
T
ime
D
omain
R
eflectometer).
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