UNITRONICS IO-D16A3-TO16 I/O INPUT / OUTPUT EXPANSION MODULE DC 24VUNITRONICS IOD16A3TO16 DC 24V I O Expansion Module The Unitronics IOD16A3TO16 is a digital I O expansion module designed to work with Unitronics PLCs, offering an efficient way to increase system inputs and outputs. Key Specifications Model: IOD16A3TO16 Voltage Level: 24 V DC digital inputs and outputs I O Configuration: 16 digital channels capable of both sourcing and sinking roles Connection Type: Screw terminal block for reliable field wiring