© National Instruments Corporation
Glossary-1
SC-206X Series User Manual
Glossary
Prefix
Meaning
Value
n-
nano-
10-9
µ
-
micro-
10-6
m-
milli-
10-3
k-
kilo-
103
M-
mega-
106
+5V
power supply
°
degrees
Ω
ohms
%
percent
A
amperes
C
Celsius
CMOS
complementary metallic oxide semiconductor
COM
common
GND
ground
Hz
hertz
I
IL
current, input low
Iin
input current
in.
inches
I/O
input/output
LED
light-emitting diode
m
meters
MB
megabytes
NC
normally closed
NO
normally open
R
resistance
s
seconds
SPDT
single-pole dual-throw
t
PHL
propagation delay, high-to-low
t
PLH
propagation delay, low-to-high
TTL
transistor-transistor logic
V
volts
VA
volt-ampere
VAC
volts alternating current
V
cc
positive voltage supply
VDC
volts direct current
V
in
volts in
Vrms
volts, root mean square
W
watts