Glossary
G-4
www.ni.com
embedded controller
an intelligent CPU (controller) interface plugged directly into the VXI
backplane, giving it direct access to the VXIbus. It must have all of its
required VXI interface capabilities built in.
EMC
electromagnetic compliance
EMI
electromagnetic interference
external trigger
a voltage pulse from an external source that triggers an event
F
fair requester
a VXIbus device that will not arbitrate for the VXIbus after releasing it until
it detects the bus request signal inactive. This ensures that all requesting
devices will be granted use of the bus.
G
g
1. grams
2. A measure of acceleration equal to 9.8 m/s
2
GPIB
General Purpose Interface Bus (IEEE 488)
g
RMS
A measure of random vibration. The root mean square of acceleration
levels in a random vibration test profile.
H
hex
hexadecimal; the numbering system with base 16, using the digits 0 to 9
and letters A to F
Hz
hertz; cycles per second
I
IDE
Integrated Drive Electronics. Denotes the most common interface to the
hard drive on PCs.
IEC
International Electrotechnical Commission. The IEC publishes
internationally recognized standards. IEC 60068 contains information on
environmental testing procedures and severities.
