An expandable multi-channel serial port optical transceiver based on fpga

Abstract

The invention discloses an expandable multi-channel serial port optical terminal based on FPGA. The optical terminal realizes the conversion of serial port electrical signal input to optical fiber data stream output, and the conversion function of optical fiber data stream input to serial port electrical signal output; realizes high speed (1MHz ), the number of expandable serial port channels (supporting 499 channels) is simultaneously input to a single optical fiber output, and the conversion function of single optical fiber input to high speed (1MHz), expandable serial port channel number (supporting 499 channels) simultaneous output; the design provides The flexible configuration of the SFP optical fiber module, the transmission distance is from 500 meters to 120 kilometers, which improves the stability and reliability of high-speed serial transmission, enhances the anti-electromagnetic interference ability of high-speed serial transmission, saves costs, and meets various engineering applications. demand.

Description

technical field [0001] The present invention relates to high-speed (1MHz), high-reliability, long-distance transmission of serial port with expandable number of channels, in particular to realization of long-distance transmission based on FPGA (Field Programmable Gate Array, Field Programmable Gate Array) serial port and optical fiber mutual conversion . Background technique [0002] In the traditional serial port interconnection transmission system, the transmission medium between devices is directly connected by electric cables. Due to the poor anti-interference performance of electric cables and the short transmission distance (less than 10 meters), long-distance transmission cannot be satisfied. In recent years, with the development of optical fiber interconnection transmission technology, serial port devices based on optical fiber transmission have gradually appeared, but only a single serial port input and output transmission can be realized, and the transmission dista...

AI Technical Summary

Problems solved by technology

[0002] In the traditional serial port interconnection transmission system, the transmission medium between devices is directly connected by electric cables. Due to the poor anti-interference performance of electric cables and the short transmission distance (less than 10 meters), it cannot meet the requirements of long-distance transmission.

In recent years, with the development of optical fiber interconnection transmission technology, serial port devices based on optical fiber transmission have gradually appeared, but only a single serial port input and output transmission can be realized, and the transmission distance is short (about 300 meters), which cannot meet the needs of the project. High-speed (1MHz), high reliability, scalable multi-channel simultaneous long-distance transmission, failed to meet the transmission needs of longer distances (100 kilometers and above)

Images