National Instruments SCB-68 User Manual page 93

I
I/O
I
OH
I
OL
L
lowpass filter
LSB
M
m
MB
MIO
N
NC
NI-DAQ
noise
NRSE
© National Instruments Corporation
input/output—the transfer of data to/from a computer system involving
communications channels, operator interface devices, and/or data
acquisition and control interfaces
current, output high
current, output low
a filter that passes low frequencies
least significant bit
meter
megabytes of memory
multifunction I/O
normally closed, or not connected
NI driver software for DAQ hardware
an undesirable electrical signal—noise comes from external sources such
as the AC power line, motors, generators, transformers, fluorescent lights,
CRT displays, computers, electrical storms, welders, radio transmitters,
and internal sources such as semiconductors, resistors, and capacitors.
Noise corrupts signals you are trying to send or receive.
nonreferenced single-ended mode—all measurements are made with
respect to a common (NRSE) measurement system reference, but the
voltage at this reference can vary with respect to the measurement system
ground
G-5 SCB-68 Shielded Connector Block User Manual
Glossary