Addressable Single Output/ Input Module

621-002

• Single voltage-free relay output.
• Single input for connection to dry contact inputs.
• Output relay for 621-002 can be powered internally, or externally to conserve loop power load (selectable at installation)
• Monitors and signals three distinct input states
• Normal.
• Alarm.
• Open-circuit.
• Polling indicator shows quiescent operation.
• Separate indicators for Quiescent, Alarm and Fault conditions
• Integral isolator model available
• DC 24 V operation.
• Easy installation with simple address setting DIP switches.
• Convenient 2-wire connection.
• Available with 125 usable address settings per loop when connected to Numens control and indicating equipment.