Avalue ECM-DX2 - Manual (Page 10)

ECM-DX2 Quick Installation Guide
10 ECM-DX2 Quick Installation Guide
2.3.3 Serial port in RS232/422/485 mode connector (CSET1)
* Default
RS232 * RS422 RS485
Signal PIN PIN Signal
COM3_M1_EN 12 11 GND
+5V 10 9 COM3_M0
SUS_LED# 8 7 COM3_M0_H
COM2_M1_EN 6 5 GND
+5V 4 3 COM2_M0
NRX2# 2 1 COM2_M0_H
2.3.4 AT/ ATX Input power select (FPT1)
* Default
ATX*
AT
Signal PIN PIN Signal
HDD_LED+ 1 2 PWR_LED+
HDD_LED# 3 4 GND
GND 5 6 SUS_LED+
SYS_RST# 7 8 SUS_LED#
PWR_BTN# 9 10 PS_ON_EN
GND 11 12 GND