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621 Input Module
Key words: Input Module, Connect An Electrically Isolated Dry-Contact Switch

Features

·   Single electrically isolated input for connection to dry contacts

·   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





Ordering Information