Advantech PCE-5120 - Manual (Page 38)

PCE-5120 User Manual 22
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.
2.7 PS/2 Keyboard and Mouse Connector (KBMS1)
One 6-pin mini-DIN connectors (KBMS1) on the card mounting bracket
provide connection to a PS/2 keyboard or a PS/2 mouse, respectively.
KBMS1 can also be connected to an adapter cable (P/N: 1700060202) for
connecting to both a PS/2 keyboard and a PS/2 mouse.
2.8 External Keyboard & Mouse (KBMS2)
In addition to the PS/2 mouse/keyboard connector on the PCE-5120's rear
plate, there is also an extra onboard external keyboard and mouse connector.
This gives system integrators greater flexibility in designing their systems.
JFP3
JFP2
JFP1
LPT1
KBMS1
JFP3
JFP2
JFP1
LPT1
KBMS2