Huawei NE05E Hardware Manual page 510

HUAWEI NE05E,NE08E
Hardware Guide
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Dust is the most common dirt in optical fiber connectors. The dust particles that
can be seen only by a microscope can affect the quality of optical signals,
deteriorate the system performance, and cause instability in network operation.
A 1-micrometer dust particle on the single-mode fiber connector can block 1%
light and cause 0.05 dB attenuation. A 9-micrometer dust particle that cannot be
seen by human eyes can block an entire fiber core. Therefore, small dirt even that
cannot be seen by human eyes should be removed.
Procedure
Table 4-38
connectors and adapters.
Table 4-38 Table 1 Procedure of inspecting and cleaning the optical fiber
connectors and adapters
Step
Clean optical fiber connectors using
the cassette cleaner
Clean optical fiber connectors using
lens tissue
Clean optical fiber adapters using
dustfree absorbent swabs
Protection of Optical Fiber Connectors
This topic describes requirements for fiber connector protection.
The requirements are as follows:
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Issue 05 (2023-03-31)
Dust
Grease (usually brought by hands)
Condensate residue
Powder (evaporated residue of water or solvent)
describes the procedure of inspecting and cleaning the optical fiber
All boards with optical ports must be packed properly, to avoid mechanical
and electrostatic damages and to reduce vibrations.
The protective caps must be put in an ESD bag.
Protective caps must be installed on all optical fiber connectors when not in
use. The optical fiber connectors must be stored in proper packages to keep
them clean.
Figure 4-102 shows the recommended protective caps, whereas
shows the protective caps not recommended.
Copyright © Huawei Technologies Co., Ltd.
4 Hardware Installation and Parts Replacement
Details
See " Cleaning Optical Fiber Connectors
Using the Cassette
See " Cleaning Optical Fiber Connectors
Using Lens Tissue".
See " Cleaning Optical Fiber Adapters
Using Dustfree Absorbent
Cleaner".
Swabs".
Figure 4-103
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