4-8 CHAPTER 4
APPENDIX B: I/O CONNECTORS
CN1 : USB CONNECTOR:
COM1,COM2 : Serial Ports Connector
LPT1 : Parallel Port Connector
1 6
5 10
1 14
13 26
Signal Name Pin Pin Signal Name
Signal Name Pin Pin Signal Name
DCD
SIN
SOUT
DTR
GND
1 6 DSR
2 7 RTS
3 8 CTS
4 9 RI
5 10 N.C.
STROBE-
Data Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
ACJ-
BUSY
PE
SLCT
1 14 AUTO FEED-
2 15 ERROR-
3 16 INIT-
4 17 SLCT IN-
5 18 Ground
6 19 Ground
7 20 Ground
8 21 Ground
9 22 Ground
10 23 Ground
11 24 Ground
12 25 Ground
13 26 N.C.
USB_VCC
USB_data0-
US
Ground
USB_VCC
USB_data1-
US
Ground
1 9 Ground
2 10 Ground
3 11 Ground
4 12 Ground
5 13 Ground
6 14 Ground
7 25 Ground
8 26 Ground
Signal Name Pin Pin Signal Name
8 16
1 9
J1 : PS/2 MOUSE CONNECTOR:
1. DATA
2. CLK
3. GND
4. NC
5. VCC
1
