The Honeywell IO-22D is a high-density digital I/O module designed for industrial control panels and distributed I/O systems. Key features include:
✔ 16-channel hybrid design (8 DI + 8 DO in one module)
✔ Galvanic isolation for noise immunity in harsh environments
✔ Tool-free wiring with spring-clamp terminals
✔ Hot-swappable (supports module replacement without system shutdown)