Safety output module - Mitsubishi Electric (MELSEC-WS Series (Safety)) - 2I/O [2DO (2 x digital outputs (Rly. NO contacts) (double rly. NO contacts) + 2 x digital outputs (NC contacts) + 2 x digital outputs (NO contacts))] - with screw-clamp term. connections - DIN rail mounting - equivalent to WS04RO4002