National Instruments SCB-68 User Manual page 94

Glossary
Nyquist frequency
O
OUT
P
PCI
PFI
PFI0/TRIG1
PFI1/TRIG2
PFI2/CONVERT*
PFI3/GPCTR1_
SOURCE
PFI4/GPCTR1_GATE
PFI5/UPDATE*
PFI6/WFTRIG
PFI7/STARTSCAN
PFI8/GPCTR0_
SOURCE
PFI9/GPCTR0_GATE
PGIA
port
SCB-68 Shielded Connector Block User Manual
a frequency that is half of the sampling frequency
output pin—a counter output pin where the counter can generate various
TTL pulse waveforms
Peripheral Component Interconnect—a high-performance expansion bus
architecture originally developed by Intel to replace ISA and EISA. It is
achieving widespread acceptance as a standard for PCs and work-stations;
it offers a theoretical maximum transfer rate of 132 MB/s.
Programmable Function Input
PFI0/trigger 1
PFI1/trigger 2
PFI2/convert
PFI3/general purpose counter 1 source
PFI4/general purpose counter 1 gate
PFI5/update
PFI6/waveform trigger
PFI7/start of scan
PFI8/general purpose counter 0 source
PFI9/general purpose counter 0 gate
Programmable Gain Instrumentation Amplifier
(1) a communications connection on a computer or a remote controller (2)
a digital port, consisting of four or eight lines of digital input and/or output
G-6 ni.com