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Compact Board PCM-9452
Chapter 2 Quick Installation Guide 2-19
9
RIA
10
N/C
2.34 COM Port 2 Connector (CN19)
COM2 RS-232 Mode
Pin Signal Pin Signal
1
DCDB
2
RXB
3
TXB
4
DTRB
5
Ground
6
DSRB
7
RTSB
8
CTSB
9
RIB / +5 Volt. / +12 Volt.
10
N/C
COM2 RS-422 Mode
Pin Signal Pin Signal
1
TXD-
2
RXD+
3
TXD+
4
RXD-
5
Ground
6
N/C
7
N/C
8
N/C
9
N/C / +5 Volt. / +12 Volt.
10
N/C
COM2 RS-485 Mode
Pin Signal Pin Signal
1
TXD-
2
N/C
3
TXD+
4
N/C
5
Ground
6
N/C
7
N/C
8
N/C
9
N/C / +5 Volt. / +12 Volt.
10
N/C