National Instruments DAQ 6527 User Manual page 41

Glossary
C
C
CAT I
cm
CompactPCI
D
DAQ
DC
DIG+
DIG–
DIO
DMA
G
GND
H
Hz
6527 User Manual
Celsius
installation category (overvoltage category) I—equipment for which
measures are taken to limit transient overvoltages to an appropriate low
level. Examples include signal-level, telecommunications, and electronic
equipment with transient overvoltages smaller than local-level mains
supplies.
centimeters
refers to the core specification defined by the PCI Industrial Computer
Manufacturer's Group (PICMG)
data acquisition—a system that uses the personal computer to collect,
measure, and generate electrical signals
direct current
positive data terminal
negative data terminal
digital input/output
direct memory access—a method by which data can be transferred to or
from computer memory from or to a device or memory on the bus while the
processor does something else. DMA is the fastest method of transferring
data to or from computer memory.
ground reference
hertz
G-2 www.ni.com