T9402 Digital Signal Acquire/Fault Self-Diagnostic - Plastic 16Ch AADvance Digital Input Module TMR 16-Channel 24Vdc Isolated Digital Input Module The T9402 is an ICS Triplex AADvance TMR 16-channel 24Vdc isolated digital input module with 2500VAC isolation, SIL3, 18-32V backplane, 0-32V input, ~2.453ms triple-mode scan. Safety Signal Acquisition for ESD/F&G/BMS Collects valve position, pressure/level switches, flame detectors, trip contacts for ESD, fire & gas, burner