Ps/2 Keyboard And Mouse Connectors (Cn11 And 33); External Keyboard Connector (Cn12) - Advantech PCA-6184 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 Connectors (CN11 and
33)
The PCA-6184 board provides a PS/2 keyboard and mouse connector.
Two 6-pin mini-DIN connector (CN11 and 33) on the card mounting
bracket supports single-board computer applications. The card comes
with an adapter to convert from the 6-pin mini-DIN connector to a PS/2
keyboard connector and to a PS/2 mouse connector.

2.9 External Keyboard Connector (CN12)

In addition to the PS/2 mouse/keyboard connector on the PCA-6184's ear
plate, there is also an extra onboard external keyboard connector. This
gives system integrators greater flexibility in designing their systems.
PCA-6184 User's Manual
CPU
CPU
20
CN11
CN12