AAEON EPIC-9457 Rev.B - Manual (Page 31)

E P I C B o a r d E P I C - 9 4 5 7 R e v . B
Chapter 2 Quick Installation Guide 2-19
2.31 RS-232 Serial Port Connector (CN21, CN22)
Pin Signal Pin Signal
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTS
7 DTR 8 RI
9 GND
2.32 Standby Power Output Connector (CN23)
Pin Signal Pin Signal
1 SMBDAT_SBY 2 GND
3 SMBCLK_SBY 4 GND
5 PS_ON# 6 5VSB
2.33 COM1/2 Connectors (CN26)
Pin Signal Pin Signal
1 DCD1 2 RXD1
3 TXD1 4 DTR1
5 GND 6 DSR1
7 RTS1 8 CTS1
9 RI1 10 DCD2 (422TXD-/485DATA-)
11 RXD2 (422RXD+) 12 TXD2 (422TXD+/485DATA+)