Twisted-Pair Port; Fiber Connection; Auto Mdi/Mdi-X - Allied Telesis AT-DMC1000/SC Installation Manual

Chapter 1: Overview

Twisted-Pair Port

Fiber Connection

Auto MDI/
MDI-X
18
Here are the basic features of the twisted-pair (copper) port:
1000Base-T (AT-DMC1000/SC, AT-DMC1000/ST, AT-DMC1000/

LC) or 100Base-TX (AT-DMC100/SC, AT-DMC100/ST,
AT-DMC100/LC) compliant
IEEE 802.3u Auto-Negotiation compliant


Auto MDI/MDI-X


100 meters (328 feet) maximum operating distance

RJ45 connector

The AT-DMC1000/100 Series media converters support the following
transceiver fiber connections:
The AT-DMC1000/SC has a fixed dual fiber SC 1000-X

connection.
The AT-DMC1000/ST has a fixed dual fiber ST 1000-X connection.

The AT-DMC1000/LC has a fixed dual fiber LC 1000-X connection.

The AT-DMC100/SC has a fixed dual fiber SC 100-X connection.

The AT-DMC100/ST has a fixed dual fiber ST 100-X connection.

The AT-DMC100/LC has a fixed dual fiber LC 100-X connection.

For the maximum operating distance, refer to Table 9 on page 58.
An RJ45 twisted-pair port on a 100 Mbps Ethernet network device can
have one of two possible wiring configurations: MDI or MDI-X. The RJ45
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.
The media converter features Auto MDI/MDI-X. The twisted-pair 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 media converter is connected to a port on a
bridge, which is typically wired as MDI, the port on the media converter
automatically configures itself as MDI-X.
This feature allows you to use a straight-through cable when connecting
any type of device to the media converter, regardless of the wiring
configuration of the port on the device.