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Gigabit over Copper Internal Straight-Through Pinouts
Unlike connections in which the crossover function is implemented internally at the hub or
switch, the NC7771 Server Adapter provides its own automatic crossover function. This
means you can wire twisted-pair media straight-through for adapter-to-hub, adapter-to-
switch, or adapter-to-adapter connections using the pinouts shown in Table C-4.
NOTE: To operate at Gigabit speeds, all four pairs of wires must be terminated within the RJ-45
connector.
Table C-4: Gigabit over Copper Pinouts Using Internal Crossover
Pin
1
2
3
4
5
6
7
8
Figure C-3 shows straight-through Gigabit over copper connector wiring to be used when the
crossover function is implemented within the hub or switch.
Figure C-3: Gigabit straight-through wiring for RJ-45 connector
HP NC7771 PCI-X Gigabit Server Adapter User Guide
HP CONFIDENTIAL Codename: Banshee II Part Number: 252458-00C Last Saved On: 7/28/03 12:31 PM
Function
Color Match
BI_DA+
White/Orange
BI_DA-
Orange/White
BI_DB+
White/Green
BI_DC+
Blue/White
BI_DC-
White/Blue
BI_DB-
Green/White
BI_DD+
White/Brown
BI_DD-
Brown/White
Function
Pin
BI_DA+
1
BI_DA-
2
BI_DB+
3
BI_DC+
4
BI_DC-
5
BI_DB-
6
BI_DD+
7
BI_DD-
8
Specifications
C-5
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