AOpen AX6BC - Keyboard; Serial Devices (COM1;COM2)

Hardware Installation
2-10
2.3.5 Keyboard
The onboard PS/2 keyboard connector is a 6-pin Mini-Din connector marked
KB2. The view angle of drawing shown here is from back panel of the housing.
PS/2 KB
PCB
2.3.6 Serial Devices (COM1/COM2)
The onboard serial connectors are 9-pin D-type connector on the back panel
of mainboard. The serial port 1 connector is marked as COM1 and the serial
port 2 connector is marked as COM2.
COM1
PCB
COM2