A-429 HS/LS TO SERIAL CONVERTER W/SM SEL/OUTPUTS RS-232 or RS-422 SERIAL. 933612-02A-429 HS/LS TO SERIAL CONVERTER W/SM SEL/OUTPUTS RS-232 or RS-422 SERIAL.ARINC 429 to RS232 Converter. ARINC 429 High Speed / Low Speed to Serial. AnyFMS ARINC output to MX-20 moving map or Electronic ..