4.
SETTINGS AND PROCEDURES BEFORE OPERATlON
MELSEGA
(2)
Examples
(a) Connections to a device which can turn the CD terminal signal
ON
(for full-/half-duplex transmissions)
I
C.bk
Connodona
and
Signal
Dirodonr
Signal
Namn
I
FG
1
SD(TXD)
I
2
SD(TW
RD(RXD)
I
3
RD(RXD)
\
RS
CS(C1S)
DSR(DR)
SG
CD
DTR(ER)
(b) Connections to &device which cannot turn the
CD
terminal signal
ON
(for full-duplex transmission)
1)
When wired as in step (a) above, disable the RS-232C CD terminal
2) If the RS-232C CD terminal check function is enabled, wire the
check.
connectors as shown below.
ab10
Connodlorn
and
Signal
Dlroetionr
Signal Namos
a
-'
7
3
4-
12
1
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