Glossary
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National Instruments
Glossary-9
VXI-MXI-Express Series User Manual
T
trigger
Either TTL or ECL lines used for intermodule communication.
TTL
Transistor-Transistor Logic
U
USB
Universal Serial Bus—a serial bus for connecting computers to keyboards,
printers, and other peripheral devices.
V
V
volts
VIC
VXI Interactive Control program, a part of the NI-VXI bus interface
software. Used to program VXI devices and develop and debug
VXI application programs.
VISA
Virtual Instrument Software Architecture. This is the general name given
to VISA and its associated architecture.
VISAIC
VISA Interactive Control program, a part of the NI-VISA software.
Used to program devices and develop and debug application programs.
VITA
VMEbus International Trade Association
VME
Versa Module Eurocard or IEEE 1014
VMEbus System
Controller
A device configured for installation in Slot 0 or a VXIbus mainframe or the
first slot in a VMEbus chassis. This device is unique in the VMEbus system
in that it performs the VMEbus System Controller functions, including
clock sourcing and arbitration for data transfers across the backplane.
Installing such a device into any other slot can damage the device, the
VMEbus/VXIbus backplane, or both.
VXIbus
VMEbus Extensions for Instrumentation