Intelligent co-processor unit, 63K byte RAM / 63K byte EEPROM, RS-232C, RS-422 port (must be mounted to CPU or CPU expansion backplane)
Omron CV500-BSC11 Intelligent co-processor unit, 63K byte RAM / 63K byte EEPROM, RS-232C, RS-422 port (must be mounted to CPU or CPU expansion backplane)