Huawei NE40E Hardware Description page 889

NE40E
Hardware Description
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Issue 01 (2018-05-03)
If a receptacle or an optical connector has not been used for a long time and has not been
covered with a dust cap, you should clean it before using it. A cotton swab is used to
clean a receptacle, and a cleaning tissue is used to clean an optical connector.
Cleaning Fiber Connectors
1. Dip lint-free cotton in alcohol and let it dry for a moment.
2. Use the cotton to clean the end face of a fiber connector.
3. Clean the end face again using new dust-free cotton without alcohol. Ensure that the
pins are clean. If necessary, use an air gun to remove the residual objects on the pins.
Cleaning MT Connectors (MTP/MTRJ) That Have Guide Pins
1. Fold a piece of lint-free cotton and dip it in alcohol. Then use the cotton to clean the
pins.
2. Clean the pins again using new piece of lint-free cotton without alcohol.
3. Use an air gun to remove any residual objects on the pins.
During the cleaning process, insert the cotton swab and turn it slowly in the receptacle. Do not use too
much force, because the receptacle may be damaged.
If, for no apparent reason, optical signals are lost during the operation of a device, use
the preceding method to clean the receptacle or the optical connector. This will eliminate
contamination as the cause of the signal loss.
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