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Fault detection device and method and analysis and diagnosis equipment

A technology for fault detection and diagnosis equipment, applied in the field of optical communication, which can solve problems such as inability to carry 5G fronthaul signals and link interruptions

Active Publication Date: 2022-03-25
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Once the ONU tunable laser is configured with the wrong working wavelength, or the working wavelength is configured for Unicom wireless equipment, the optical path is jumped to the wrong port, and the ONU / AWG port failure will cause the link to be interrupted, unable to carry the 5G fronthaul signal

Method used

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  • Fault detection device and method and analysis and diagnosis equipment
  • Fault detection device and method and analysis and diagnosis equipment
  • Fault detection device and method and analysis and diagnosis equipment

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Embodiment Construction

[0035] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0036] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

[0038] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of t...

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Abstract

The invention provides a fault detection device and method and analysis and diagnosis equipment. The fault detection device comprises a detection module which is respectively connected with optical splitters arranged on all front transmission channels at a local side, is connected with an optical splitting port of a demultiplexer at the local side, and is used for detecting the wavelength and the power of first downlink light split from the optical splitting port, the wavelength and the power of the uplink light split from the optical splitter and the wavelength and the power of the second downlink light split from the optical splitter are detected; the wavelength tuning module is respectively connected with the optical splitters on the front transmission channels on the local side, is connected with the optical splitting port of the demultiplexer, and is used for simulating and outputting the uplink light or the downlink light with the required wavelength; and the analysis and diagnosis equipment is used for controlling the wavelength tuning module to output uplink light or downlink light meeting the working wavelength requirement and the optical power requirement, and determining the fault condition of the forward transmission system according to the optical data received from the detection module.

Description

technical field [0001] The present disclosure relates to the technical field of optical communication, in particular to a fault detection device, method and analysis and diagnosis equipment. Background technique [0002] In the era of 5G (5th Generation Mobile Communication Technology, fifth-generation mobile communication technology), CWDM (Coarse Wavelength Division Multiplexer, sparse wavelength division multiplexer, also known as coarse wavelength division multiplexer), MWDM (Metro Wave Division Multiplexing, medium wave Multiplex), and wavelength division technologies such as WDM-PON (Wavelength Division Multiplex-Passive Optical Network, wavelength division multiplex passive optical network) can be used as a fronthaul bearer solution. [0003] Taking WDM-PON as an example, when the WDM-PON system adopts the ONU (Optical Network Unit, Optical Network Unit) side tunable wavelength laser solution, in the initial state of the system, each ONU side tunable laser is not conf...

Claims

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Application Information

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IPC IPC(8): H04B10/079
CPCH04B10/07955H04B10/07957
Inventor 杜喆赵捷顾明罗诚蒋铭张德智程明
Owner CHINA TELECOM CORP LTD