AP4050DN-HD
Hardware Installation and Maintenance Guide 5 Appendix
Issue 01 (2016-04-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
104
Figure 5-100 Cleaning a receptacle with a cotton swab
When cleaning a receptacle, insert the cotton swab and turn it slowly in the receptacle. Do not
use too much strength because the receptacle may be damaged.
5. If optical signals are lost during the operation of a device, use the preceding method to
clean the receptacle or the optical connector. In this manner, the possibility of
contamination can be excluded.
Measures to Prevent an Optical Module from Being Burnt
1. 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.
2.
When performing a self-loop test, use an optical attenuator. Do not loosen the optical
connector instead of the optical attenuator.
Precautions
1. The optical connector should be vertically inserted in the receptacle to avoid damages to
the receptacle.
2.
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.
5.6 Fault Tag
*Customer name:
Address:
Contact person:
Tel.: Fax:
Category*: □ RMA □ Return □ Analysis
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