Read-write structure of single-plate optical module and read-write method

Abstract

The invention discloses a read-write structure of a single-plate optical module. The structure comprises a master control part and a cable clip, wherein the master control part is in communication connection with the cable clip. The master control part comprises a control module and an RS-485 bus in circuit connection with the output end of the control module. The cable clip comprises a programmable logic module and the optimal module in circuit connection with the output end of the programmable logic module, wherein the programmable logic module is in circuit connection with the RS-485 bus. Communication between the control module of the master control part and the programmable logic module is carried out through an RS-485 channel, a CPU on the cable clip and an exchange chip on the master control part are not needed, and therefore equipment development hardware cost is reduced; space of a PCB is saved, and space can be more flexibly provided for the layout of other devices on the cable clip; the equipment response speed is improved, and equipment flexibility is better; because the CPU is not needed, software and drive research and development work is reduced, and accordingly the research and development cycle is shortened, and risks are reduced.

Description

technical field [0001] The invention relates to a switch communication technology, in particular to a read-write structure and a read-write method of a single-board optical module in a rack switch. Background technique [0002] In large-scale switch systems, a large number of different types of optical modules are often used. According to the standards of carrier-grade broadband access equipment, some real-time parameters of optical modules need to be monitored, such as: transmitted optical power, received optical power, temperature, and operating voltage. , laser bias, etc. [0003] For some central office rack-mounted devices, the information of the optical modules on each board is read and written by the CPU on each board. When the CPU of this board obtains the information of the optical modules, Network (Fast Ethernet, FE) and other channels are reported to the main control CPU through the backboard. However, when there are not many services on the single board, adding...

AI Technical Summary

Problems solved by technology

[0008] The application of the above processing method has the following disadvantages: first, there is enough research and development funds to support the increase in production costs caused by adding a CPU to the line card; second, the PCB board of the line card has enough space to place the CPU and its external devices; The third is that the addition of CPU requires software cooperation, which intensifies the research and development work and lengthens the research and development cycle

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