Aaeon PCM-4330 Guia de Instalação Página 28

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22 PCM-4894 User Manual
Keyboard and PS/2 mouse connectors
(CN7)
The mainboard provides a keyboard connector which supports
both a keyboard and a PS/2 style mouse. In most cases, especially
in embedded applications, a keyboard is not used. The standard
PC/AT BIOS will report an error or fail during power-on self-test
(POST) after a reset if the keyboard is not present. The mainboard
BIOS Advanced setup menu allows you to select "System Key-
board" under the "Present" or "Absent" selection. This allows no-
keyboard operation in embedded system applications without the
system halting under POST (power-on-self-test).
Keyboard and PS/2 mouse connector (CN7)
Pin Signal
1 GND
2 MS V
CC
3 MS DATA
4 MS CLOCK
5 GND
6 KB V
CC
7 KB DATA
8 KB CLOCK
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