The Honeywell 621-2200RC is an industrial Output Module designed for integration into distributed control systems (DCS) and process automation frameworks, part of Honeywell’s 620 Series hardware.
The Honeywell 621-9934C is an I/O rack power supply module designed for industrial automation systems, part of Honeywell’s 620 Series hardware.
The Honeywell 621-9940C is a serial I/O module designed for industrial automation and control systems, often integrated into distributed control systems (DCS).
The Honeywell 621-9937 is an industrial I/O module designed for integration into distributed control systems (DCS) and process automation frameworks.
