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Auto mdi/mdi-x – Allied Telesis AT-FS705LE User Manual

Page 18

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Overview

6

Auto MDI/MDI-X

An RJ-45 twisted pair port on a 10 Mbps or 100
Mbps Ethernet network device can have one of
two possible wiring configurations: MDI or
MDI-X, while the twisted pair port on a switch
or hub is usually MDI-X.

To connect two 10 Mbps or 100 Mbps network
devices together that have dissimilar port
wiring configurations, such as MDI or MDI-X,
you use a straight-through twisted pair cable.
To connect two network devices that have the
same wiring configuration, such as MDI to
MDI, you use a crossover cable.

LINK/ACT

Green

Flashing

A valid link has been
established on the port.

Data is being transmitted or
received on the port.

FDX

Green

OFF

The port is operating in
full-duplex mode.

The port is operating in
half-duplex mode.

Table 1 LEDs (continued)

LEDs

Color

Description