AAEON AEC-6831 - Manual (Page 27)

E m b e d d e d C o n t r o l l e r A E C - 6 8 3 1
Chapter 2 Hardware Installation 2 - 12
2.6 COM Port 1 Connector
Pin Signal Pin Signal
1 DCDA 2 RXA
3 TXA 4 DTRA
5 Ground 6 DSRA
7 RTSA 8 CTSA
9 RIA 10 N/C
2.7 COM Port 2 Connector
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
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
RS-485 Mode
Pin Signal Pin Signal
1 TXD- 2 N/C
3 TXD+ 4 N/C
5 Ground 6 N/C