AAEON AEC-6637 - Manual (Page 36)

E m b e d d e d C o n t r o l l e r A E C - 6 6 3 7
Chapter 2 Hardware Installation 2 - 21
RS-232
Pin Pin Name Signal Type Signal Level
1 DCD IN
2 DSR IN
3 RX IN
4 RTS OUT ±9V
5 TX OUT ±9V
6 CTS IN
7 DTR OUT ±9V
8 RI/+5V/+12V IN/ PWR +5V/+12V
9 GND GND
RS-422
Pin Pin Name Signal Type Signal Level
1 RS422_TX- OUT ±5V
2 NC
3 RS422_RX+ IN
4 NC
5 RS422_TX+ OUT ±5V
6 NC
7 RS422_RX- IN
8 NC/+5V/+12V PWR +5V/+12V
9 GND GND