10/100 crossover pinouts – HP NC6133 Gigabit Module 1000 LX User Manual

Page 30

Advertising
background image

C-6 Compaq NC3134 Fast Ethernet Server Adapter User Guide

10/100 Crossover Pinouts

When the crossover function is not provided within the hub or switch, you must implement the

crossover through the twisted-pair media using the physical pinouts indicated in Table C-10.

Table C-10

10/100 Pinouts Using External Crossover

Pin Function

Color

Match

Function Pin

1 TD+

White/Orange

RD+ 3

2 TD-

Orange/White

RD- 6

3 RD+

White/Green

TD+ 1

4

Blue/White

5

White/Blue

6 RD-

Green/White

TD- 2

7

White/Brown

8

Brown/White

Figure C-2 shows the correct 10/100 wiring to use when the crossover function is implemented

externally (in the twisted-pair cabling).


Figure C-2. External crossover for RJ-45 connector

Gigabit over Copper Internal Straight-Through Pinouts

Unlike some connections in which the crossover function is implemented internally at the hub

or switch, the NC7132 upgrade module provides its own automatic cross-over function. This

means you can wire twisted-pair media straight-through for adapter-to-hub or switch or adapter-

to-adapter connections, using the pinouts shown in Table C-11.

NOTE: To operate at Gigabit speeds, all four pairs of wires must be terminated within the RJ-45
connector.

Advertising
This manual is related to the following products: