Auto Mdi/Mdi-X; Fiber Optic Port; Port Speed; Duplex Mode - Allied Telesis AT-FS201 Installation Manual

Description

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. 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 10 Mbps or 100 Mbps network devices together that have
dissimilar port wiring configurations, such as MDI to MDI-X, you would
usually use a straight-through twisted pair cable. To connect two network
devices that have the same wiring configuration, such as MDI to MDI, you
would usually use a crossover cable.
The AT-FS20x and AT-FS202SC/FSx Series Switches feature automatic MDI/
MDI-X. The RJ-45 port automatically determines the configuration of the port
on the device to which it is connected and then configures itself appropriately.
For example, if a port on a switch is connected to a port on a bridge, which is
typically wired as MDI, the port on the switch automatically configures itself
as MDI-X. This feature allows you to use either crossover cables or straight-
through cable when connecting a device to the twisted pair port.

Fiber Optic Port

The AT-FS20x and AT-FS202SC/FSx Series Switches have one 100Base-FX
fiber optic port. The fiber optic port features either an SC or ST connector.

Port Speed

The fiber optic port is compliant with the 100Base-FX standard and has a
fixed operating speed of 100 Mbps. The end-node connected to the fiber optic
port on the switch must also be able to operate at 100 Mbps.

Duplex Mode

The fiber optic port on the switch can operate in half- or full-duplex mode. You
must set the duplex mode manually using the DIP switches on the back of the
unit.
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