AAEON ACP-5187 - Manual (Page 26)

M u l t i - T o u c h P a n e l P C A C P - 5 1 8 7
Chapter 2 Hardware Installation 2-5
6 NC
7 NC
8 NC/+5V/+12V PWR +5V/+12V
9 GND GND
Note: COM2 RS-232/422/485 can be set by BIOS setting. Default is
RS-232. Pin 8 function can be set by JP8.
2.5 COM Port 1 (D-SUB 9) (CN27)
1 5
6 9
Pin Pin Name Signal Type Signal Level
1 DCD IN
2 RX IN
3 TX OUT ±9V
4 DTR OUT ±9V
5 GND GND
6 DSR IN
7 RTS OUT ±9V
8 CTS IN
9 RI IN