Huawei NE20E-S Series Hardware Description page 261

Universal service router

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.

Cover an optical module with an optical connector

Lay the optical fibers on the Optical-fiber Distribution Frame (ODF) or coil them up in a

fiber management tray. Make sure that the optical fibers are not squeezed.

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.

Huawei Proprietary and Confidential

8 Optical Module