RS232 to RS422/RS485 converters and isolators
BESD supplies RS232 to RS422 / RS485 converters from various manufacturers. The converters can be divided into versions without and with galvanic isolation between the RS232 and RS422 / RS485 ports. For the protection of the COM-port, there are also port isolators available in different versions. This galvanic isolation prevents "ground loops" what can cause serious damage to the COM-port.
There are also programmable RS232 to RS422/RS485 protocol converters available.