Main module: Cpu: optional intel/amd, 533mhz~1.6ghz. Memory: 256mb~512mb Hard disk: 40~160gb Rs232/484, usb and ethernet port Analog input: 18 channel (include one cold junction compensation channel). 14 bit resolution. Wide range input. Optoisolated from digital side. Analog output: 6 channels. 14 bit resolution. Voltage/current output configurable. Optoisolated from digital side. Digital input: 24 channels. Optocoupler isolated. 2 channels have interrupt feature. Relay output: 16 channels. Contact capacity: 250v/5a(max) Timer/counter: 3 channels. 16bit. Programmable. Power requirement: Peripherals: 24vdc/1acpu module: 12vdc/5a