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S12700 Series Agile Switches Hardware Description

This document describes hardware components of the S12700, including the cabinet, chassis, power supply facilities, fan modules, cards, cables, and pluggable modules for interfaces. You can find useful information about S12700 hardware components from this document.
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Ethernet Cable

Ethernet Cable

Types of Ethernet Cables

Ethernet cables include straight-through cables and crossover cables.

Structure

Straight-through cables and crossover cables are standard unshielded Ethernet cables with RJ45 connectors, as shown in Figure 8-15.

Figure 8-15  Structure of an Ethernet cable

Pin Assignments

Table 8-4 lists pin assignments of a straight-through cable.

Table 8-4  Pin assignments of a straight-through cable

Connector X1

Connector X2

Color

Relationship

X1.2

X2.2

Orange

Twisted pair

X1.1

X2.1

White/Orange

X1.6

X2.6

Green

Twisted pair

X1.3

X2.3

White/Green

X1.4

X2.4

Blue

Twisted pair

X1.5

X2.5

White/Blue

X1.8

X2.8

Brown

Twisted pair

X1.7

X2.7

White/Brown

Table 8-5 lists pin assignments of a crossover cable.

Table 8-5  Pin assignments of a crossover cable

Connector X1

Connector X2

Color

Relationship

X1.6

X2.2

Orange

Twisted pair

X1.3

X2.1

White/Orange

X1.2

X2.6

Green

Twisted pair

X1.1

X2.3

White/Green

X1.4

X2.4

Blue

Twisted pair

X1.5

X2.5

White/Blue

X1.8

X2.8

Brown

Twisted pair

X1.7

X2.7

White/Brown

Connection

A straight-through cable connects Ethernet ports between the following devices:

  • A router and a hub

  • A router and an Ethernet switch

  • A computer and an Ethernet switch

  • A computer and a hub

A crossover cable connects Ethernet ports between the following devices:

  • Two routers

  • A router and a computer

  • Two hubs

  • A hub and a switch

  • Two switches

  • Two computers

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Updated: 2019-06-21

Document ID: EDOC1000047496

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