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FPGA-based multipath high-speed serial port transparent transmission optical transmitter and receiver and equipment

A high-speed serial port, transparent transmission technology, applied in cable transmission adaptation, TV systems adapted to optical transmission, etc., can solve the problems of large signal delay, inability to meet long-distance transmission, waste of optical fiber bandwidth, etc., and achieve the effect of low delay

Inactive Publication Date: 2020-05-19
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0002] 422 / 232 serial port is a very widely used transmission protocol at present, with the characteristics of simple application and high reliability, but limited by the impedance of the connecting line itself, its transmission distance is generally within 40 meters, which cannot meet the needs of long-distance transmission
However, the existing 422 / 232 serial port conversion optical fiber conversion equipment needs to analyze the serial port information into data according to the set baud rate, and then transmit the data to the remote end, and restore it to serial port information. Both processes will cause more trouble for signal transmission. Large delay, at the same time, the communication baud rate needs to be set during use, which increases the difficulty of use
In addition, a single optical fiber can only transmit 1 to 2 serial port information, which is a great waste of optical fiber bandwidth

Method used

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  • FPGA-based multipath high-speed serial port transparent transmission optical transmitter and receiver and equipment

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0024] combine figure 1 As shown, the present invention provides a kind of multi-channel high-speed serial port transparent transmission optical terminal based on FPGA, comprises FPGA chip 4, serial interface module 3, photoelectric conversion module 5, and described FPGA chip 4 is connected with described serial interface module 3 ...

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Abstract

The embodiment of the invention provides an FPGA-based multipath high-speed serial port transparent transmission optical transceiver and equipment. Through characteristics of high bandwidth and low time delay of optical communication, a serial port transmission optical transceiver with ultralow time delay, multipath parallelism and customizable capability is obtained by reasonably configuring an FPGA chip.

Description

technical field [0001] The invention relates to the technical field of long-distance transmission of digital signals, in particular to an FPGA-based multi-channel high-speed serial port transparent transmission optical terminal and equipment. Background technique [0002] The 422 / 232 serial port is a very widely used transmission protocol at present, with the characteristics of simple application and high reliability, but limited by the impedance of the connecting line itself, its transmission distance is generally within 40 meters, which cannot meet the needs of long-distance transmission. [0003] Optical fiber transmission has the advantages of good confidentiality, strong anti-interference performance, high transmission rate and large capacity. It is an ideal solution to convert 422 / 232 serial ports into optical signals and realize long-distance transmission through optical fibers. However, the existing 422 / 232 serial port conversion optical fiber conversion equipment ne...

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Application Information

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IPC IPC(8): H04N7/22
CPCH04N7/22
Inventor 张维达崔明张甫恺
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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