SMC Networks 486DX, 486DX2, 486DX4, 486DX2, 486DX4, AR-B1462 - page 29

AR-B1462 User¡¦s Guide
3-11
3.2.7 Keyboard Connector
(1) Keyboard Lock Header (J7)
1 KBLK
2 GND
J7
Figure 3-19 J7: Keyboard Lock Header
(2) Keyboard Connector (J4)
This keyboard connector is a PS/2 type keyboard connector. This connector is also for a standard IBM-compatible
keyboard with the keyboard adapter cable. J4 provides the way of connecting a keyboard to the AR-B1462.
1 DATA
3 GND
2 GND
6 Not Used
4 VCC
12
34
56
5 CLOCK
6-Pin Midi Din
(Front View)
2 DATA
4 GND
1 CLOCK
5 VCC
3 GND
J4
1 2 3 4 5
Figure 3-20 J4: Keyboard Connector
3.2.8 External Speaker Header (J9)
Besides the onboard buzzer, you can use an external speaker by connecting to the J9 header.
1 Speaker+
2 Speaker-
3 Speaker-
4 Speaker-
1 2 3 4
Figure 3-21 J9: Speaker Header
3.2.9 Power Connector
(1) 8-Pin Power Connector (J1)
J1 is an 8-pin power connector. You can directly connect the power supply to the onboard power connector for
stand-alone applications.
1 2 3 4
2 +5 VDC
4 GND
1 GND
6 +12 VDC
5 6 7 8 5 GND
7 -12 VDC
3 +5 VDC
8 -5 VDC
Figure 3-22 J1: 8-Pin Power Connector