54
CA-RU150R30XG-3965U-01-W10
User’s Manual
◆
Serial Port
Table 4.9. Serial Port Pin Definition
Pin No.
Description
RS-232C
Half Duplex
RS-485
Full Duplex
RS-485
RS-422A
1
DCD
DATA-
TX-
TX-
2
RXD
DATA+
TX+
TX+
3
TXD
N/A
RX+
RX+
4
DTR
N/A
RX-
RX-
5
Ground
Ground
Ground
Ground
6
DSR
N/A
N/A
N/A
7
RTS
N/A
N/A
N/A
8
CTS
N/A
N/A
N/A
9
N/A
N/A
N/A
N/A