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Ethernet cable, Connecting the ethernet cable, Ethernet switching interface – H3C Technologies H3C MSR 20-2X[40] User Manual

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Ethernet cable

Ethernet interfaces usually use category 5 twisted pair cables, as shown in the following figure:

Figure 14 Ethernet cable

Ethernet cables fit into the following two categories:

Standard cable, also called straight-through cable, at both ends of which, wires are crimped in the

RJ-45 connectors in the same sequence. The cable connects different categories of devices, such as
a terminal device (PC for example) or router to a Hub or LAN switch. The cable accompanying the

router is standard cable.

Crossover cable, at both ends of which, wires are crimped in the RJ-45 connectors in different
sequences. The cable connects the same category of devices, such as PC to PC or PC to router. You

can make crossover cables yourself as needed.

NOTE:

In making network cables, shielded cables are preferred for electromagnetic compatibility sake.

Connecting the Ethernet cable

Follow the steps below to connect an Ethernet cable:

Step1

Connect one end of the Ethernet cable to an Ethernet port on the router and the other end to another

device.

For a 10/100 Mbps port provided by the RPU, connect it to a PC or another router using a crossover
cable or to a Hub or LAN switch using a straight-through cable.

Step2

View the LINK LED of the Ethernet interface: ON means a link is present. OFF means no link is present;

check the line for the cause.

Ethernet Switching Interface

The MSR 20-21 Router is available with fixed 100Base-TX FE interface(s). The following table describes

Ethernet switching interface attributes:

Table 16 Attributes of the Ethernet switching interface

Attribute Description

Connector

RJ-45

Interface

MDI/MDIX

Frame format

Ethernet_II
Ethernet_SNAP

Operating mode

10/100 Mbps autosensing
Full duplex/half duplex