Com Port 2 Connector (Cn19) - Aaeon Compact Board PCM-9452 Manual

C o m p a c t B o a r d
9 RIA

2.34 COM Port 2 Connector (CN19)

COM2 RS-232 Mode
Pin Signal
1 DCDB
3 TXB
5 Ground
7
RTSB
9 RIB / +5 Volt. / +12 Volt.
COM2 RS-422 Mode
Pin Signal
1
TXD-
3 TXD+
5 Ground
7 N/C
9 N/C / +5 Volt. / +12 Volt.
COM2 RS-485 Mode
Pin Signal
1 TXD-
3
TXD+
5
Ground
7 N/C
9 N/C / +5 Volt. / +12 Volt.
P C M - 9 4 5 2
10 N/C
Pin Signal
2 RXB
4 DTRB
6 DSRB
8
CTSB
10 N/C
Pin Signal
2
RXD+
4 RXD-
6 N/C
8 N/C
10 N/C
Pin Signal
2 N/C
4
N/C
6
N/C
8 N/C
10 N/C
Chapter 2 Quick Installation Guide
2-19