©National Instruments Corporation1-1SCXI-1102/B/C User ManualChapter1IntroductionThis chapter describes the SCXI-1102/B/C modules; lists what youneed to get started with your SCXI-1102/B/C module, the optionalsoftware, optional equipment, and custom cables; and explains how tounpack the SCXI-1102/B/C modules.About the SCXI-1102/B/C Modules♦ SCXI-1102This module is for signal conditioning of thermocouples,low-bandwidth volt and millivolt sources, 4 to 20 mA current sources,and 0 to 20 mA process-current sources. The SCXI-1102 has32 differential analog input channels and one cold-junction sensorchannel. On each channel, the SCXI-1102 has a three-pole lowpassfilter with a 2 Hz cutoff frequency to reject 60 Hz noise. Each channelalso has an amplifier with a selectable gain of 1 or 100. You canmultiplex the SCXI-1102 inputs to a single output, which drives a singleDAQ device channel.♦ SCXI-1102BThis module is for the signal conditioning of thermocouples,medium-bandwidth volt and millivolt sources, 4 to 20 mA currentsources, and 0 to 20 mA process-current sources. The SCXI-1102B has32 different analog input channels and one cold-junction sensorchannel. On each channel, the SCXI-1102B has a three-pole lowpassfilter with a 200 Hz cutoff frequency. Each channel also has anamplifier with a selectable gain of 1 or 100. You can multiplex theSCXI-1102B inputs to a single output, which drives a single DAQdevice channel.♦ SCXI-1102CThis module is for the signal conditioning of thermocouples,high-bandwidth volt and millivolt sources, 4 to 20 mA current sources,and 0 to 20 mA process-current sources. The SCXI-1102C has 32different analog input channels and one cold-junction sensor channel.On each channel, the SCXI-1102C has a three-pole lowpass filter witha 10 kHz cutoff frequency. Each channel also has an amplifier with a