Mitsubishi AJ55TB2-4T 16-Point 24V DC Digital Input Module

The Mitsubishi AJ55TB2-4T (AJ55TB2-4T) is a 16-point digital input unit and expansion block designed for use with Mitsubishi Electric automation systems, including the MELSEC-F (FX) series. Featuring conformal coating for enhanced protection against environmental contaminants, this module provides 16 digital inputs rated for 24 V DC operation. It functions as an input expansion interface, capturing discrete sensor and field switch signals to transmit input data reliably back to the programmable logic controller. Functionally equivalent to the FX16EXC configuration, the AJ55TB2-4T facilitates direct signal interfacing and distributed field wiring across automated industrial equipment. Engineered for factory automation applications, the module supports reliable signal processing in diverse operating environments. Its robust construction ensures stable signal transmission for automated assembly lines, packaging machinery, material handling systems, and general industrial control setups. By expanding digital input capacity, the Mitsubishi AJ55TB2-4T offers a dependable replacement and extension solution for legacy MELSEC control architectures requiring 24 V DC digital signal conditioning.