OLP channel protection switching method based on otn residual wave
A channel protection and automatic protection switching technology, applied in the field of optical path transmission, can solve problems such as security risks, service interruption, user complaints, etc., to reduce commissioning, reduce the number and depth of access, and facilitate the discovery of problems.
Active Publication Date: 2021-07-27
STATE GRID CORP OF CHINA +1
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Problems solved by technology
But at the same time, the introduction of the optical path automatic switching protection system has also brought new security risks to the operation and maintenance of the existing network. Constant switching causes frequent business interruptions and user complaints
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[0033] In order to make the purpose of the present invention, technical solutions and advantages clearer, the following combination figure 1 and specific examples to clearly and completely describe the invention.
[0034] Such as figure 1 As shown, the present embodiment 1 relates to a method for OLP channel protection switching based on OTN residual wave, which includes:
[0035] Step (1), install optical fiber line automatic protection switching devices and wavelength conversion devices in pairs between the main and backup routes of two adjacent SDH systems;
[0036] Step (2), the luminescent signal T of the main and backup routes of the SDH system X Connect to the automatic protection switching device of the optical fiber line, and the luminous signal T X One is divided into two, one is connected to the receiving end of the optical fiber line automatic protection switching device at the opposite end, and the other is connected to the wavelength conversion device;
[003...
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The present invention relates to an OLP channel protection switching method based on OTN surplus wave, the steps include: (1) installing an optical fiber line automatic protection switching device and a wavelength conversion device in pairs between the main and backup routes of the SDH system; (2) the main and backup routes of the SDH system Routed luminescent signal T X Connect to the optical fiber line automatic protection switching device, and its output is respectively connected to the opposite end of the optical fiber line automatic protection switching device and the wavelength conversion device; (3) The wavelength conversion device converts the light wave and outputs it to the MCU multiplexer, and then transmits it to the DEMUX demultiplexer (4) The output of the DEMUX demultiplexer is output to the automatic protection switching device of the optical fiber line at the opposite end after passing through the wavelength conversion device at the opposite end; the main and standby route of the SDH system at the opposite end receives the light receiving signal R of the automatic protection switching device for adjacent optical fiber lines X ; If the main line fails, the standby protection is realized through the spare OTN surplus wave; the present invention realizes the use of a single pair of optical cables through the multiplexing of the OTN surplus wave, and solves the protection problem of up to dozens of OLP spare channels.
Description
technical field [0001] The invention relates to an OLP channel protection switching method based on OTN residual waves, which belongs to the field of optical path transmission. Background technique [0002] In recent years, with the rapid growth of power grid data services and the emergence of new large-capacity integrated data bearer networks and dispatching data networks, new requirements have been put forward for the backbone transmission network. For large-capacity data services, SDH technology is , Adaptation, and bearer efficiency are obviously insufficient; Wavelength Division Multiplexing (WDM) technology cannot provide flexible service transmission and scheduling, cannot achieve high reliability and maintainability of the network, and has certain functional defects. [0003] At present, as the main carrier of electric power communication, optical cable carries important services such as relay protection, dispatching data network, and data communication network. The...
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IPC IPC(8): H04J14/02H04B10/032
CPCH04B10/032H04J14/0294
Inventor 赵炜张志钦孟显刘文昭季名扬杨会峰孔明刘彦君苏汉张合明李英敏于冰洋崔俊彬黄镜宇曹明
Owner STATE GRID CORP OF CHINA