User's Manual

Glossary

PCMCIA an expansion bus architecture that has found widespread acceptance as a

de facto standard in notebook-size computers. It originated as a

specification for add-on memory cards written by the Personal Computer

Memory Card International Association.

PPI programmable peripheral interface

RAM random-access memory

RD Read—the read signal generated from the parallel port interface circuitry

RH relative humidity

RMA Return Material Authorization

rms root mean square

RSE referenced single-ended mode—input mode where the negative input of the

instrumentation amplifier is referenced to AISENSE/AIGND, which is tied

to ground through about 200 Ω resistance (default setting for the

DAQCard-1200)

RTD resistance temperature detector

S samples

s seconds

SCXI Signal Conditioning eXtensions for Instrumentation—the National

Instruments product line for conditioning low-level signals within an

external chassis near sensors so only high-level signals are sent to DAQ

devices in the noisy PC environment

STB Strobe Input—A low signal on this handshaking ine loads data iont the

input latch