
EXP8051 User
’
s Manual
CONNECTOR DESCRIPTION
CONNECTOR
PIN OUT
SIGNAL NAME
JP18 :
KEY LOCK
1
2
3
4
5
LED POWER
NOT USED
GROUND
KEYBOARD
INHIBITOR
GROUND
JP17 :
SPEAKER
1
2
3
4
+ 5V
DATA OUT
DATA OUT
DATA OUT
JP16:
RESET
1
2
GROUND
RESET IN
P1:
KEYBOARD
CONNECTOR
1
2
3
4
5
KEYBOARD CLOCK
KEYBOARD DATA
SPACE
GROUND
+ 5V DC
P2 :
POWER
CONNECTOR
1
2
3
4
5,6,7,8
9
10,11,12
POWER GOOD
+ 5V DC
+12V DC
- 12V DC
GROUND
- 5V DC
+ 5V DC
JP12:
PERIPHERAL
POWER
CONTROL
CONNECTOR
1,2
3,4
5,6
7,8
9,10
FOR V-SYNC
FOR H-SYNC
FOR MONITOR
POWER
FOR POWER FAN
RESERVED
JP 5
EXTERNAL BATTERY 1-2 OR 1- 4 ( PIN 1 is GROUND )
11