National Instruments VXI-MIO Series - Manual (Page 140)

Glossary
VXI-MIO Series User Manual G-16  National Instruments Corporation
VXIbus VMEbus eXtensions for Instrumentation
VXIbus trigger lines These are the eight TTL and two ECL lines on the VXIbus
backplane which are used for intermodule communication.
Typical applications are triggering and clocking measurements.
VXI plug&play Systems A group of VXI developers dedicated to making VXI devices as
Alliance easy to use as possible, primarily by simplifying software
development.
W
waveform Multiple voltage readings taken at a specific sampling rate
WFTRIG waveform generation trigger signal
wire Data path between nodes.
word serial The simplest required communication protocol used by message-
based devices in the VXIbus system. It uses the A16
communication registers to transfer data with a simple polling
handshake method.