Keyboard And Mouse Connector - Aaeon MB-668 Manual

MB-668

Keyboard and Mouse Connector

(CN11) and (CN27)
The MB-668 provides a keyboard connector which supports both a
keyboard and a PS/2 style mouse. But 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 "Present" or
"Absent" under the "System Keyboard" section. This allows no-
keyboard operation in embedded system applications without the
system halting under POST (power-on-self-test). Take note that
both can't be used simultaneously. Please refer to the pin defini-
tions of both CN11 and CN27 listed below:
Keyboard and Mouse Connector (CN11), Dual mini-din connector
Pin Signal
1 KB DATA
2 MS DATA
3 GND
4 Vcc
5 KB CLOCK
6 MS CLOCK
Keyboard and Mouse Connector (CN27), 6-pin connector
Pin Signal
1 KB DATA
2 MS DATA
3 GND
2 2 MB-668 Installation Guide
Pin Signal
7 MS DATA
8 N/C
9 GND
10 Vcc
11 MS CLOCK
12 N/C
Pin Signal
4 MS DATA
5 N/C
6 GND
BC-599/596