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The Allen-Bradley 1771-IBN is a DC input module for interfacing ON/OFF devices such as limit switches, pushbuttons, motor starters and pilot lights. Input voltage range 10-30V DC, 280 mA maximum input current; compatible with 1771-A1B/-A2B/-A3B/-A4B and later I/O chassis. Provides electrical-optical isolation and noise-reduction filtering.
Allen-Bradley 1771-IBN Series C DC input module for the 1771 I/O platform.
Allen-Bradley 1771-ICD encoder/counter input module for the 1771 I/O platform.
The Allen-Bradley 1771-ID16 is an AC/DC isolated input module for interfacing ON/OFF devices with programmable controllers. 120V AC input range with customer-selectable input filtering (9.0/18.0 ms AC, 1.0 ms DC); 75 mA chassis power draw; requires a Series B I/O chassis.