National Instruments Low-Cost Multifunction I/O Board for ISA Lab-PC+ - Manual (Page 196)

Glossary
Lab-PC+ User Manual Glossary-2 © National Instruments Corporation
NRSE non-referenced single-ended
PPI programmable peripheral interface
ppm parts per million
PS/2 IBM Personal System/2
R
EXT
external resistance
RSE referenced single-ended
RTSI Real-Time System Integration
s seconds
SCXI Signal Conditioning eXtensions for Instrumentation (bus)
SDK System Development Kit
STC system timing controller
TTL transistor-to-transistor logic
V volts
VDC volts direct current
V
EXT
external volts
V
IH
volts, input high
V
IL
volts, input low
Vin volts in
V
OH
volts, output high
V
OL
volts, output low
V
out
output voltage
V
ref
reference voltage