Startech Convert An Rs232 Data Signal To Either Rs485 Or Rs422 With This Wall-mountable,

Convert an rs232 data signal to either rs485 or rs422 with this wall-mountable,esd-protected adapter-industrial rs232 to rs422/485 serial port converter w/ 15kv esd protection-rs232 to rs485 serial converter-rs232 rs422 adapter-rs232/422/4