Crossover Cable And Adapter Pinouts; Identifying A Crossover Cable; Four Twisted-Pair Cable Pinouts For 1000Base-T Ports; Figure - Cisco IE 3000 Series Hardware Installation Manual

Appendix C Cable and Connectors

Crossover Cable and Adapter Pinouts

This section describes how to identify a crossover cable and also describes the adapter pinouts.

Identifying a Crossover Cable

To identify a crossover cable, compare the two modular ends of the cable. Hold the cable ends
side-by-side, with the tab at the back. The wire connected to the pin on the outside of the left plug should
be a different color from the wire connected to the pin on the inside of the right plug. (See
Figure C-9
Pin 1

Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports

Figure C-7
Cisco IE 3000 switches.
Figure C-10
Switch
1 TPO+
2 TPO-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
OL-13017-01
Identifying a Crossover Cable
Pin 1 on one connector and
pin 1 on the other connector
should be different colors.
and Figure C-8 show the schematics of four twisted-pair cables for 10/100/1000 ports on
Four Twisted-Pair Straight-Through Cable Schematic for 10/100/1000 Ports
Router or PC
1 TP1+
2 TP1-
3 TPO+
6 TPO-
4 TP3+
5 TP3-
7 TP2+
8 TP2-
Cable and Adapter Specifications
Pin 1
Cisco IE 3000 Switch Hardware Installation Guide

Figure

C-9.)
C-7