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DSL-300T ADSL Modem User’s Guide
8
Network Connections
Network connections are provided through the ADSL port and the Ethernet port on the back of the Modem. See
the Rear Panel diagram above and the illustrations below for examples.
Connect ADSL Line
Use the ADSL cable included with the Modem to connect it to a telephone wall socket or receptacle. Plug one
end of the cable into the ADSL port (RJ-11 receptacle) on the rear panel of the Modem and insert the other end
into the RJ-11 wall socket. If you are using a low pass filter device, follow the instructions included with the
device or given to you by your service provider. The ADSL connection represents the WAN interface, the
connection to the Internet. It is the physical link to the service provider’s network backbone and ultimately to the
Internet.
Connect Modem to Ethernet
The Modem may be connected to a single computer or Ethernet device through the 10BASE-TX Ethernet port
on the rear panel. Any connection to an Ethernet concentrating device such as a switch or hub must operate at a
speed of 10/100 Mbps only. When connecting the Modem to any Ethernet device that is capable of operating at
speeds higher than 10Mbps, be sure that the device has auto-negotiation (NWay) enabled for the connecting port.
Note
In order to connect the Modem to an Ethernet LAN, it is necessary to install
3
rd
-party PPP connection software on any system used to access the Internet.
Use standard twisted-pair cable with RJ-45 connectors. The RJ-45 port on the Modem is a crossed port (MDI-X).
Follow standard Ethernet guidelines when deciding what type of cable to use to make this connection. When
connecting the Modem directly to a PC or server use a normal straight-through cable. You should use a crossed
cable when connecting the Modem to a normal (MDI-X) port on a switch or hub. Use a normal straight-through
cable when connecting it to an uplink (MDI-II) port on a hub or switch.
The rules governing Ethernet cable lengths apply to the LAN to Modem connection. Be sure that the cable
connecting the LAN to the Modem does not exceed 100 meters.
Computer to Modem Connection
Connect the Modem
directly to a
10/100BASE-TX
Ethernet port on a PC
or notebook computer
using the Ethernet
cable provided as
shown in this diagram.