DC combined flexible high-speed digital input and output module - Mitsubishi Electric (MELSEC iQ-R Series) - 20I/O [12DI (12 x digital inputs (5-24Vdc; high-speed input; DC or differential counter; 1?s response / 200-8Mpulses/s)) + 8DO (8 x digital outputs (5Vdc-24Vdc; high-speed single-ended outputs / can be used as 6 differential outputs))] - with screw-clamp term. connections - Backplane / rack mounting