D-Link DI-304 Quick Installation Manual page 3

Ports 1x to 4x – These eight ports can be used to connect
end-stations to the router using straight-through cables.
ISDN – This socket is used to connect the ISDN line to
either an NT-1 or directly to the ISDN wall jack, depend-
ing on the type of service delivered by your phone
company.
Installation and Initial Configuration
Step 1 - Connecting an ISDN Line to
the Router
Your phone company will provide an S/T interface into
your home or office. Plug the ISDN line from the router
directly into the ISDN wall socket provided by your phone
company.
Step 2 - Connecting Ethernet Cables
to the Router
Your DI-304 has four ports for connecting 100BASE-TX
Fast Ethernet devices to form a LAN. The jacks for ports 1
through 4 are wired to let you connect network end nodes
(computers, servers, bridges, other routers, etc.) using stan-
dard "straight-through" EIA
Association) Category 5 or higher twisted-pair cables. The
jack for the sixth port is labeled Uplink and is wired to let
you connect to another 10Mbps or 10/100Mbps Ethernet or
hub or Switch using a straight-through cable, or an end
node using a cross-wired cable.
Please refer to the following chart when deciding on the
type of cable necessary for a given connection:
DEVICE PORT DEVICE
USED BEING
CONNECTED
Hub or
Normal
Switch
Router Server (or PC)
Hub or
Uplink
Switch
Server (or PC)
The figure below shows how to make an Ethernet connec-
tion between the router and a network end node.
(Electronic Industries
PORT CABLE
TYPE TO USE
Crossover
Normal
(X)
Straight-
Uplink Through
(||)
Straight-
Through
(||)
Straight-
Normal Through
(||)
Crossover
Uplink
(X)
Crossover
(X)
3
RJ-45 connector
Important Notes on Ethernet Connec-
tions
Observe the following rules when connecting devices with
twisted-pair Ethernet cables:
♦ For both end-node and uplink connections, use only EIA
Category 5 or higher-grade twisted-pair data cables with
RJ-45 plugs. In almost all cases, only standard straight-
through cables are needed.
♦ Make sure no cable is more than 100 meters (328 feet)
long.
♦ When uplinking two hubs together with a straight-
through cable, use an uplink-type jack at one end, and an
end-node-type jack at the other.
♦ If uplinking more than two hubs together, observe the 5-
4-3 rule: no signal, in order to go from one end node to
another, must ever pass through more than five twisted-
pair cables, four repeaters (that is, hubs), and three up-
link cables. This is the maximum signal path in twisted-
pair Ethernet. Also be sure never to allow a signal loop
to form.
10BASE-T cable
(straight-through wires)
Note that you can connect an end node through the Up-
link jack, but to do so you must use a cross-wired cable
or cable converter.
Step 3 - Powering Up Devices for Ini-
tial Configuration
Plug in the included 18V AC, 1000 mA power adapter into
the power jack on the router's rear panel.
You should have now connected the ISDN phone line, one
or more Ethernet cables, and the power adapter.
RJ-45 connector