Appendix G Fault Tag - Huawei S2700 Hardware Installation And Maintenance Manual

S2700&S3700&S5700&S6700 Switch
Hardware Installation and Maintenance Guide
Measures to Prevent an Optical Module from Being Burnt
1.
2.
Precautions
1.
2.

13.7 Appendix G Fault Tag

*Customer name:
Address:
Contact person:
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Category*: □ RMA □ Return □ Analysis
BOM
Code
Reasons for Repairing (Category No.):
Issue 13 (2017-11-20)
Before using an optical time-domain reflectometer (OTDR) to test the connectivity or the
attenuation of optical signals, disconnect the optical fibers from the optical module.
Otherwise, the optical module will be burnt.
When performing a self-loop test, use an optical attenuator. Do not loosen the optical
connector instead of the optical attenuator.
The optical connector should be vertically inserted in the receptacle to avoid damages to
the receptacle.
Fibers must be inserted into optical modules of the corresponding type. That is,
multimode fibers must be inserted into multimode optical modules, and single mode
fibers must be inserted into single mode optical modules. If a fiber is inserted into an
optical module of a different mode, faults may occur. For example, optical signals will
be lost.
Product
Description
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Fault
Bar Occurring
Code* Date*
Description
of the Fault Category
Phenomena* No.*
13 Appendix
Software
Version*
174