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Hardware Installation and Maintenance Guide

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600

This section provides brief procedure for installing the AR series routers. This document describes preparations before AR series routers installation, installation methods and precautions, AR series routers maintenance, and common methods for troubleshooting typical hardware module faults.

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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).
Connecting Optical Modules and Optical Fibers

Connecting Optical Modules and Optical Fibers


Invisible laser beams will cause eye damage. Do not look into bores of optical modules or connectors of optical fibers without eye protection.

  • A router must use Huawei-certified optical modules. Non-Huawei-certified optical modules cannot ensure transmission reliability and may affect service stability. Huawei is not responsible for any problem caused by the use of non-Huawei-certified optical modules and will not fix such problems.
  • Do not over bend optical fibers. The bend radius of an optical fiber should be no less than 40 mm.
  • Do not bundle optical fibers too tight. Otherwise, optical fiber performance may be degraded, affecting communications between devices.


  1. Gently push an optical module into an optical interface until you hear a click.


    If the optical module cannot be completely inserted into the optical interface, do not force it into the interface. Turn the optical module 180 degrees over and try again.

  2. Remove the dust plug from the optical module.


    Place the dust plug in an appropriate place. After optical fibers are removed from the optical module, cover the optical module with the dust plug to protect it from dust.

  3. Before connecting optical fibers, attach temporary labels on both ends of each optical fiber to identify them. For details on how to make labels of optical fibers, see Engineering Labels for Optical Fibers.
  4. Remove the dust caps from the fiber connectors. Connect one end of the optical fiber to the optical module and the other end to the remote device.


    Connect the receive and transmit ends of the fiber connector according to the identifiers on receive and transmit bores of the optical module. Do not connect the two ends reversely.

  5. Arrange the optical fibers to make them parallel and bundle them with fiber binding tape at an interval of 150 mm to 300 mm.
  6. Replace all the temporary labels with formal labels on the optical fibers.
Updated: 2019-05-17

Document ID: EDOC1000039117

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