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Gigabit over copper external crossover pinouts – HP NC7131 PCI Gigabit Server Adapter User Manual

Page 24

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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