Protecting channel interface device of SDH or PDH communication equipment
A technology for protecting channels and interface devices, applied in the field of communications, can solve the problems of lack of unified standards, unclear boundaries between protection equipment manufacturers and communications, and inability to interconnect equipment, and achieve the effect of improving transmission security.
Pending Publication Date: 2018-05-01
苏州布罗安电子科技有限公司
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- Application Information
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Problems solved by technology
As a result, the interface characteristics, code rate, code type, and frame structure between mainstream protection equipment and fiber multiplexing equipment are customized by each manufacturer, and there is no unified standard. Equipment from different manufacturers cannot be interconnected, resulting in protection equipment Blurred line between vendors and communications
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Embodiment Construction
[0038] An embodiment of the present application provides a protection channel interface device for SDH or PDH communication equipment.
[0039] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0040] figure 1 It is a schematic diagram of a module structure of an embodiment of a protection channel interface device of an SDH or PDH communication device described in this application. Although t...
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The invention provides a protecting channel interface device of SDH or PDH communication equipment. The device can be placed in SDH or PDH equipment and comprises an E1 interface, a field-programmablegate array, a digital signal processor, an IGIR-B code clock synchronization circuit and a nonvolatile random memory, wherein the E1 interface is in signal connection with an SDH or PDH master; the field-programmable gate array is in signal connection with the E1 interface, is used for receiving or transmitting a protecting command through the E1 interface and decoding or coding the protecting command, and is used for rejecting protecting commands of which the address codes do not belong to the local station; the digital signal processor is in signal connection with the field-programmable gate array; the IGIR-B code clock synchronization circuit is in signal connection with the field-programmable gate array; and the nonvolatile random memory is in signal connection with the digital signalprocessor, is in signal connection with the IGIR-B code clock synchronization circuit and is used for storing time parameters of the protecting commands. By various embodiments of the invention, a command protecting standard communication interface can be provided, and standardization of a protecting channel interface of the SDH and PDH equipment is realized.
Description
technical field [0001] The present application relates to the technical field of communication, in particular to a protection channel interface device of SDH or PDH communication equipment. Background technique [0002] The rapid development of the smart grid has continuously put forward new requirements for the reliability of relay protection communication. The longitudinal protection and differential protection of the power grid are mainly based on the protection command transmission of the power line carrier. At present, the SDH / PDH system based on optical fiber communication It has been widely used in power systems, and relay protection communication is increasingly dependent on optical fibers. [0003] However, since civilian SDH (Synchronous Digital Hierarchy, SDH for short) or PDH (Pseudo-synchronous Digital Hierarchy, PDH for short) equipment does not have dedicated protection, in the prior art, relay protection Most of them use E1 line directly, and use various s...
Claims
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IPC IPC(8): H04J3/16H02H7/26
CPCH02H7/261H04J3/1611H04J3/1623
Inventor 朱雯
Owner 苏州布罗安电子科技有限公司