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Hardware Description

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Hardware Description
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Instructions on How to Use an Optical Module

Instructions on How to Use an Optical Module

Only optical modules matching Huawei products can be used. These optical modules are strictly tested by Huawei. If non-matching optical modules are used, device requirements may fail to be met, and services may fail to run properly. To replace optical modules, see Parts Replacement-Replacing an Optical Module.

Precautions for the loosened optical module

  • When installing an optical module, force it into position. If a click is heard or a slight tremor is felt, it indicates that the latch is secured. When the latch is not secured, the connecting finger is not properly connected to the board, and the link may become Up. In the rare event where the optical modulecollides with another object or is made to tremor, the optical module will be loosened or the optical signals will be temporarily cut off.
  • When inserting the optical module, make sure that the tab is closed. (At this time, the latch locks the optical module.) After the optical module is inserted, try pulling it out to see whether it is installed properly. If the optical module cannot be pulled out, it is secured.

The tab is closed

The tab is open

Precautions for receptacle contamination

  • Clean tissues must be prepared for deployment on site. You need to clean the optical connector before inserting it in the receptacle. This protects the receptacle against the contamination.
    Use at least three cleaning tissues. Wipe the end of an optical connector horizontally in one direction, and then move the connector end to the unused part of the cleaning tissue to continue. Generally, one cleaning tissue is used for cleaning an optical connector.

  • To prevent contamination, the optical module should be covered with either a dust cap or an optical connector.

    Cover an optical module with a dust cap

    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.
    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.

Precautions for the overload-caused burnt optical module

  • When using an OTDR to test the connectivity or the attenuation of optical signals, disconnect the optical connector from the optical module. Otherwise, the optical module may be burnt.
  • When performing a self-loop test, use an optical attenuator. Do not loosen the optical connector.
  • It is required that a long-distance optical module have an input optical power of less than -7 dBm. If the input optical power is larger than -7 dBm, you need to add an optical attenuator. For example, if the transmiting optical power is X dBm and the optical attenuation is Y dB, the receiving optical power is X-Y, which must be smaller than -7dBm (X-Y<-7 dBm).

Other precautions

  • The optical connector should be horizontally inserted in the receptacle to avoid damages to the receptacle.

  • Mixed use of multi-mode and single-mode optical fibers is prohibited. Otherwise, faults such as signal loss may occur.
Updated: 2019-01-14

Document ID: EDOC1100058943

Views: 16473

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