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The Allen-Bradley 1771-NBSC is a versatile I/O module featuring six 4-20mA current inputs and two 0-25mA current outputs, designed for integration with Allen-Bradley PLC-3, PLC-5, and PLC-5/250 controllers. Operating efficiently with a power dissipation of 13W and drawing a maximum of 2.6A from the chassis backplane, it offers precise input resolution of 330nA/bit at 16 bits unipolar and robust input overvoltage protection at 24V DC continuous. With an output resolution of 3.2µA/bit at 13 bits unipolar and output drive capability into various impedance circuits, the 1771-NBSC ensures reliable performance in environments ranging from 0-60°C, accommodating up to 95% relative humidity.