M91-2-RA22: 24VDC, 12 Digital Inputs including 2 Analog inputs and 2 temperature measurement inputs, high speed counter/ shaft encoder input, 8 relay outputs, 2 Analog outputs, RS232/ RS485
M91-2-UA2: 24VDC, 10 Digital Inputs, 10 Transistor Outputs, 2 TC/Analog/Digital Inputs, 2 Analog Outputs, RS232/485