Manual

C-6 Compaq NC7131 Gigabit Server Adapter Reference Guide
Gigabit Over Copper External Crossover Pinouts
When a crossover function is not provided by either the adapter or hub/switch, you must
implement it through the twisted-pair media using the physical pinouts shown in Table C-5.
Table C-5
Gigabit Over Copper Crossover Pinouts
Pin Function Color Match Function Pin
1 BI_DA+ White/Orange BI_DB+ 3
2 BI_DA- Orange/White BI_DB- 6
3 BI_DB+ White/Green BI_DA+ 1
4 BI_DC+ Blue/White BI_DD+ 7
5 BI_DC- White/Blue BI_DD- 8
6 BI_DB- Green/White BI_DA- 2
7 BI_DD+ White/Brown BI_DC+ 4
8 BI_DD- Brown/White BI_DC- 5
Figure C-4 shows the correct Gigabit over copper wiring to be used when the crossover function
is implemented externally (in the twisted-pair cabling).
1
2
3
4
5
6
7
8
White/Orange
Orange/White
Green/White
White/Green
Blue/White
White/Blue
Brown/White
White/Brown
Figure C-4. Gigabit Over Copper External Crossover for RJ-45 Connector