PSSu E S 2AI TC-T 314500 For digital or analogue signal processing. Up to 64 I/O modules can be installed in any order. PSSu, electronic module, standard, analogue inputs and outputs, 2inputs, thermocouples with letter codes R, S, B, J, T, E, K, N, voltage with ranges -30 – 30 mV, -60 – 60 mV, -120 – 120 mV, reference temperature via special base modules using integrated Pt1000, for increased environmental requirements.