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  1. #1
    Newbie level 5
    Points: 506, Level: 4

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    RS232 to RS422 converter circuit?

    I know there are commercial converters out there, but i want to build my own. I have an ARINC429 to RS232 converter transmitting data one way (not receiving any data), but my processor doesnt have a 232 serial port, it only has a 422. I need to convert the data transmitted from the 232 into a 422 format so my processor will understand it. I have attached a circuit my colleague designed for this purpose, but it has not been tested yet, and it may be several weeks before testing is done. Therefore, if you have an alternative solution or feedback on this circuit, please let me know! Thanks!


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  2. #2
    Full Member level 5
    Points: 3,473, Level: 13

    Join Date
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    Re: RS232 to RS422 converter circuit?

    I think this can work. You can also connect RX422_TX- to pin 2 of the LT1014 instead of the 2.5Vref.



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