DSL-310 ADSL Modem User’s Guide
Connect Ethernet LAN to Modem
The Modem may be connected to any 10/100BASE-TX Ethernet LAN. 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.
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
Ethernet Link LED indicator will indicate a valid connection.
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.
Hub or Switch to Modem Connection
Connect the Modem to an uplink port (MDI-II) on an Ethernet hub or switch with a straight-through cable
as shown in the diagram below:
Power On Modem
To power on the device:
1. Insert the AC Power Adapter cord into the power receptacle located on the back of the Modem and
plug the adapter into a nearby power source.
2. You should see the Power LED indicator light up and remain lit.
If you wish to reserve the
uplink port on the switch or
hub for another device,
connect to any on the other
MDI-X ports (1x, 2x, etc.) with
a cross-wired cable or use
crossover adapter.
DSL-310
