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AR-B1474 User¡¦s Guide
3-10
3.2.9 LED Header (J1, J2 & J4)
(1) External Power LED & Keyboard Lock Header (J4)
1 Power LED+
2 Not Used
3 Power LED-
4 Key-Lock+
5 Key-Lock-
Figure 3-16 J4: Power LED & Key Lock Header
(2) HDD LED Header (J1)
1
2
LED+
LED-
Figure 3-17 J1: HDD LED Header
(3) Watchdog LED Header (J2)
1 LED+
2 LED-
Figure 3-18 J2: Watchdog LED Header
3.2.10 Keyboard Connector
(1) 6-Pin Mini DIN Keyboard Connector (CN5)
CN5 is a 6-pin Mini-DIN connector. This keyboard connector is PS/2 type keyboard compatible. An PC/AT
compatible keyboard can be used by connecting the provided adapter cable CN5 and keyboard.
1 DATA
3 GND
2 Not Used
6 Not Used
4 VCC
1
2
3 4
5
6
5 CLOCK
CN5 (Front View)
Figure 3-19 CN5: Keyboard Connector
(2) AUX. Keyboard Connector (J8)
A PC/AT compatible keyboard can be used by connected the provided adapter cable between J8 and the
keyboard. The pin assignments of J8 connector are as follows:
2 DATA
4 GND
1 CLOCK
5 VCC
3 Not Used
J8
Figure 3-20 J8: AUX. Keyboard Connector