[Example] RS232C to RS422 conversion board for currency exchange machines [EOL support]

Replacement Design for Embedded Systems - How to Expand Device Lineup by Maintaining Size and Signal Conversion -

With the expansion of the lineup of currency exchange machines, it became necessary to convert the existing RS232C signals to RS422 signals. However, due to constraints in the device housing, changing the board size was not possible. Therefore, we faced the challenge of improving signal conversion performance while maintaining the existing design by adding an RS422 conversion circuit to the current RS232C board. Our company first conducted detailed hearings with customers to optimize the circuit of the existing board, and then, after confirming the operation with a prototype RS422 conversion board, established a design that could be integrated without changing the board size. Furthermore, in addition to evaluating the board alone, we conducted verification of its incorporation into the device and confirmed that there were no issues with all specified operations. This enabled us to achieve the continued use of the existing design and high-reliability signal conversion, responding to the expansion of the currency exchange machine lineup. We would like design engineers, procurement, and production management to consider this case as an optimal solution that enhances product performance, production stability, and cost efficiency while overcoming the constraints of the device housing.

EMSCommunicationsEmbedded system design service