Glossary
5
Glossary
AC
A
lternating
C
urrent
CCITT
International Telegraph and Telephone Consultative Commit-
tee (
C
omité
C
onsultatif
I
nternational
T
éléphonique et
T
élé-
graphique)
CTS
C
lear
t
o
S
end
DC
D
irect
C
urrent
DCD
D
ata
C
arrier
D
etect
DSR
D
ata
S
et
R
eady
DTE
D
ata
T
erminal
E
quipment
DTR
D
ata
T
erminal
R
eady
ETSI
E
uropean
T
elecommunications
S
tandards
I
nstitute
FSK
F
requency-
s
hift
k
eying
GND
G
rou
nd
IEC
I
nternational
E
lectrotechnical
C
ommission
ITU-T
I
nternational
T
elecommunication
U
nion - Section
T
elecommuni-
cation Standardization
kbps
kb
its
p
er
s
econd
LED
L
ight
E
mitting
D
iode
ms
M
illi
s
econd
PC
P
ersonal
C
omputer
RTS
R
equest
t
o
S
end
RTU
R
emote
T
erminal
U
nit
USB
U
niversal
S
erial
B
us
1KGT151042
V000 1
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