NI 651x User Manual
© National Instruments | G-3
N
non-latching relay A type of electromechanical relay that has an initial position of
normally closed (NC). This position is maintained by the force of a
spring or permanent magnet while no current flows. The normally
open (NO) contact is maintained by the force of a magnetic field while
current flows through the coil. When the current stops, the relay
reverts back to its initial NC position.
P
PCI 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
workstations; it offers a theoretical maximum transfer rate of 132
Mbytes/s.
port A digital port, consisting of four or eight lines of digital input and/or
output.
S
Ssamples
s seconds
SCSI Small Computer System Interface. Interface for communication
between devices.
signal conditioning The manipulation of signals to prepare them for digitizing.
T
TTL transistor-transistor logic
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