Triconex DI3301 / Model 3301 Digital Input Module 24 V DC 32 points Product Overview TRICONEX DI3301 is a 32-point Digital Input Module designed for the Trident safety system. It operates with 24 VDC nominal input voltage and supports continuous channel diagnostics within the system's redundant safety architecture. Technical Specifications Technical Reference: Triconex / Trident Planning and Installation Guide — Model 3301 Digital Input Module. Module Type Digital Input