33
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2.2.12 COM1 (Serial port connector, RS-232/422/485)
12
Serial port Connector
1
6
Pin No.
RS-232
RS-422
Full Duplex
RS-485
Half Duplex
1
DCD
TXD-
D-
2
RXD
TXD+
D+
3
TXD
RXD+
–
4
DTR
RXD-
–
5
GND
6
DSR
–
–
7
RTS
–
–
8
CTS
–
–
9
RI
–
–
Connector PN
Vendor
SM41D1P1122N33N1
FENYING