© Copyright IBM Corp.  2000  29
Appendix A.  Connector-pin assignments
The following figures show the pin assignments for various system board connectors.
External connectors
The following information shows the pin assignments for external connectors.
Monitor connector
USB port connectors
Table 10. Monitor  connector-pin assignments 
Pin Signal I/O Pin Signal I/O
1 Red O 9 +5 V dc, used by DDC2B
2 Green I 10 Ground
3 Blue O 11 Monitor ID 0 - not used
4 Monitor ID 2 - not used I 12 DDC2B data I/O
5 Ground 13 Horizontal sync O
6 Red ground 14 Vertical sync O
7 Green ground 15 DDC2B clock I/O
8 Blue ground
1
6
11
15
Table 11. USB port connector-pin assignments 
Pin Connector
1VCC
2 −Data
3+Data
4 Ground
4
3
2
1