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B.1.2 Connectors
Connector Description
ISA1 ~ 6
16-bit ISA bus connector
KB1
KB-In, from CPU card K/B connector
KB2 ~ 3
KB-Out, 5-pin external K/B connector
AT1
AT power connector
ATX1
ATX power connector
CN1
PS-ON function, 3-pin connector to CPU card for ATX sig-
nal
CN2
8-pin alarm board power connector
CN3
3-pin +5V and +12V power connector
B.1.3 Connector Pin Definition
KB1 ~ 3 Connector
Pin
Signal
1
KBCLK
2
KBDATA
3
NC
4
KBGND
5
KBVCC
AT1 Connector
Pin
Signal
1
NC
2
+5V
3
+12V
Pin
Signal
4
-12V
5
GND
6
GND
25
Pin
Signal
7
GND
8
GND
9
-5V
Pin
Signal
10
+5V
11
+5V
12
+5V
Appendix B
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