© National Instruments Corporation xv NI 6232/6233 User ManualAbout This ManualThe NI 6232/6233 User Manual contains information about using theNational Instruments 6232/6233 M Series data acquisition (DAQ) deviceswith NI-DAQmx 8.0 and later. NI 6232/6233 devices feature eight analoginput (AI) channels, four analog output (AO) channels, two counters, sixlines of digital input (DI), and four lines of digital output (DO).ConventionsThe following conventions are used in this manual:<> Angle brackets that contain numbers separated by an ellipsis representa range of values associated with a bit or signal name—for example,AO <3..0>.[ ] Square brackets enclose optional items—for example, [response].» The » symbol leads you through nested menu items and dialog box optionsto a final action. The sequence File»Page Setup»Options directs you topull down the File menu, select the Page Setup item, and select Optionsfrom the last dialog box.This icon denotes a note, which alerts you to important information.This icon denotes a caution, which advises you of precautions to take toavoid injury, data loss, or a system crash. When this symbol is marked on aproduct, refer to the NI 6232/6233 Specifcations for information aboutprecautions to take.When symbol is marked on a product, it denotes a warning advising you totake precautions to avoid electrical shock.When symbol is marked on a product, it denotes a component that may behot. Touching this component may result in bodily injury.bold Bold text denotes items that you must select or click in the software, suchas menu items and dialog box options. Bold text also denotes parameternames.italic Italic text denotes variables, emphasis, a cross-reference, or an introductionto a key concept. Italic text also denotes text that is a placeholder for a wordor value that you must supply.