4bpin, 25bsignal, 5bsignal – AAEON AEC-6977 User Manual
Page 28
Advertising
E m b e d d e d C o n t r o l l e r
A E C - 6 9 7 7
Chapter 2 Hardware Installation
2 - 11
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
2.21 RS-232 Box Header (COM4)
Pin
Signal Pin
Signal
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
2.22 USB Box Header (USB3~USB4)
Pin
Signal Pin
Signal
1 +5V
2 GND
3 USBD-
4 GND
5 USBD+
6 USBD+
7 GND
8 USBD-
9 GND
10
+5V
Advertising