Ps/2 Keyboard And Mouse Connector (Cn11) - Advantech AIMB-760 User Manual

Different devices implement the RS-232 standard in different ways. If
you are having problems with a serial device, be sure to check the pin
assignments for the connector.

2.8 PS/2 Keyboard and Mouse Connector (CN11)

Two 6-pin mini-DIN connectors (CN11) on the motherboard provide
connection to a PS/2 keyboard and a PS/2 mouse, respectively.
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