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Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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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).
How Do I Select Optical Modules and Fibers?

How Do I Select Optical Modules and Fibers?

Optical modules work with optical fibers to transmit optical signals. An optical module works in full-duplex mode with a pair of optical fibers, one for transmission and one for receiving, as shown in the following figure.



Both optical modules and fibers support two modes: single mode and multimode. The following table describes mapping between optical modules and fibers.

Optical Module

Optical Fiber

Working Status

Single-mode optical module

Single-mode optical fiber

Work normally

Single-mode optical module

Multimode optical fiber

Can work in a short term

Multimode optical module

Multimode optical fiber

Work normally

Multimode optical module

Single-mode optical fiber

Cannot work

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Updated: 2020-01-07

Document ID: EDOC1000060766

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