Allied-telesis AT-LMC100ST Bedienungsanleitung PDF herunterladen (Seite 13)

AT-LMC100SC and AT-LMC100ST Installation Guide

Key Features

The media converters have the following key features:

❑ LEDs for unit and port status

❑ MDI/MDI-X selector switch on RJ-45 port

❑ Automatic half- or full-duplex mode operation with 100Base-TX or

100Base-FX fiber optic port

❑ Maximum transmission distance of fiber connection is 2 kilometers at

full-duplex mode

❑ External AC/DC power adapter

❑ Standard size for use in an AT-MCR12 chassis

Status LEDs

Table 2 defines the media converter’s LEDs.

Table 2 Status LEDs

MDI/MDI-X Selector Switch

An RJ-45 port on a 100 Mbps Ethernet network device can have one of two

possible wiring configurations: MDI or MDI-X. The RJ-45 port on a PC, router

or bridge is typically wired as MDI, while the twisted pair port on a switch or

hub is usually MDI-X.

To connect two 100 Mbps network devices together that have dissimilar port

wiring configurations, such as MDI to MDI-X, you use a straight-through

cable. To connect two network devices that have an RJ-45 port with the same

wiring configuration, such as MDI to MDI, you use a crossover cable.

The RJ-45 port on the media converter features an MDI/MDI-X switch. You

can use this switch to configure the twisted pair port on the media converter

as either MDI or MDI-X. This feature allows you to use a straight-through

cable regardless of the type of end-node connected to the port.

LED State Color Description

PWR ON Green Power is applied to the media converter.

ACT ON Green Activities are received and/or transmitted on the port.

LNK ON Green A link has been established on the port.

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Allied-telesis AT-LMC100ST Bedienungsanleitung Seite 13