Acrosser Technology AR-B1320 CPU, User Manual

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A
A
R
R
-
-
B
B
1
1
3
3
2
2
0
0
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3-5
3.5 KEYBOARD CONNECTOR (J2)
The J2 is a 6-pin 2.0mm JST connector. Use the keyboard adapter cable to connect a PS/2 type
keyboard. The following shows the pin assignment of the adapter cable.
1
1 Reserved
2 KB Data
3 GND
4 VCC
5 Reserved
6 KB Clock
1 DATA
3 GND
2 N.C.
6 N.C.
4 VCC
1
2
3 4
5
6
5 CLOCK
J2
6 Pin Mini-Din
2
3
4
5
6
Figure 3-4 J2: Keyboard Connector
3.6 RESET HEADER (J3)
The J3 is used to connect to an external reset switch. Shorting these two pins will reset the
system.
Figure 3-5 J3: Reset Header
3.7 SPEAKER HEADER (J4)
The AR-B1320 provides a 2-pin right angle header for connecting an external speaker.
Figure 3-6 J4: Speaker Header
Note: J3 and J4 are next to each other. Please notice their orientation and pin locations when you
are installing the system.
2
1
J4
Front View
1:
2: Speaker-
2
1
J3
Front View
1: Reset+
2: Reset-