National Instruments 6527 User Manual
Page 43

Glossary
© National Instruments Corporation
G-3
I
I/O
input/output
in.
inches
isolation
signal conditioning to break ground loops and reject high common-mode
voltages to protect equipment and users and to ensure accurate
measurements
L
LED
light-emitting diode
M
m
meters
max
maximum
MOSFET
metal-oxide semiconductor field-effect transistor
O
optical isolation
the technique of using an optocoupler to transfer data without electrical
continuity, to eliminate high-potential differences and transients
optocoupler
a device that transfers electrical signals by utilizing light waves to provide
coupling with electrical isolation between input and output
P
PCI
Peripheral Component Interconnect—a high-performance expansion bus
architecture originally developed by Intel to replace ISA and EISA.
port
a digital port, consisting of four or eight lines of digital input and/or output
PXI
PCI eXtensions for Instrumentation—an open specification that builds on
the CompactPCI specification by adding instrumentation-specific features