Serial modem type data photoelectric conversion device
A technology of modulation and demodulation and photoelectric conversion, applied in the direction of electrical digital data processing, optical fiber transmission, instruments, etc., can solve the problems of no anti-interference ability, inability to increase transmission speed, short transmission distance, etc., and achieve low cost of line laying, Improved transmission reliability and low hardware cost
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[0039] figure 1 It is a structural schematic diagram of the RS232 serial port modulation and demodulation device according to the first embodiment of the present invention. see figure 1 , The RS232 serial port modulation and demodulation device includes a receiver module 1 , a modulation module 2 , an electro-optic conversion module 3 , a photoelectric conversion module 4 and a demodulation module 5 .
[0040] The receiver module 1 includes a plurality of MAX232 chips 6 and corresponding optocoupler components 7 connected to the MAX232 chips 6 . The MAX232 chip 6 receives multi-channel RS232 serial port data, and further, the MAX232 chip 6 supports 12-channel RS232 serial port data transmission. Each MAX232 chip supports two-way RS232 serial communication, and a total of 6 MAX232 chips are used. The receiver module 1 realizes receiving multiple RS232 serial port data for communication.
[0041] In order to improve the working reliability of the device, the TTL level signal...
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