AAEON EMB-CV1 series - Manual (Page 23)

I n d u s t r i a l M o t h e r b o a r d E M B - C V 1 s e r i e s
Chapter 2 Quick Installation Guide 2 - 12
2.17 COM3/COM4/COM5 RS-232 Serial Port PIN HEADER
(COM3/COM4/COM5)
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 NC
2.18 GPIO/SM BUS/COM2/ COM2 External Power Selection
(DIGTALREFENCE)
Pin Signal Pin Signal
1 GP50 2 GP51
3 GP52 4 GP53
5 GP54 6 GP55
7 GP56 8 GP57
9 +5V 10 GND
11 SMB_CLOCK 12 SMB_DATA
13 +5V 14 GND
15 COM2_RI# 16 +12V
17 COM2_RI# 18 RI#
19 COM2_RI# 20 +5V