© National Instruments Corporation vii R Series Intelligent DAQ User Manual
About This Manual
This manual describes the electrical and mechanical aspects of the
National Instruments 781xR/783xR/784xR/785xR devices and contains
information about programming and using the devices.

Conventions

The following conventions appear in this manual:
<> Angle brackets that contain numbers separated by an ellipsis represent
arange of values associated with a bit or signal name—for example,
AO <3..0 >.
»The » symbol leads you through nested menu items and dialog box options
to a final action. The sequence File»Page Setup»Options directs you to
pull down the File menu, select the PageSetup item, and select Options
from 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 to
avoid injury, data loss, or a system crash. When this symbol is marked on a
product, refer to the Safety Information section of Chapter 1, Introduction,
for information about precautions to take.
When symbol is marked on a product, it denotes a warning advising you to
take precautions to avoid electrical shock.
When symbol is marked on a product, it denotes a component that may be
hot. Touching this component may result in bodily injury.
bold Bold text denotes items that you must select or click in the software, such
as menu items and dialog box options. Bold text also denotes parameter
names.
italic Italic text denotes variables, emphasis, a cross-reference, or an introduction
to a key concept. Italic text also denotes text that is a placeholder for a word
or value that you must supply.