AAEON PCM-QM77 - Manual (Page 58)

C o m p a c t B o a r d P C M - Q M 7 7
Chapter 2 Quick Installation Guide 2-43
Pin Pin Name Signal Type Signal Level
1 RS485_D- I/O ± 5V
2 RS485_D+ I/O ± 5V
3 NC
4 NC
5 GND GND
6 NC
7 NC
8 NC
9 NC/+5V/+12V PWR +5V/+12V
10 NC
RS422_TX+
RS422_RX-
NC
NC
NC
RS422_TX- 1 2
9 10
RS422_RX+
GND
NC
NC/+5V/+12V
RS-422
Pin Pin Name Signal Type Signal Level
1 RS422_TX- OUT ± 5V
2 RS422_TX+ OUT ± 5V
3 RS422_RX+ IN
4 RS422_RX- IN
5 GND GND