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Important notes on ethernet connections – D-Link DI-308 User Manual

Page 19

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DI-308 ISDN Remote Router

11

or an end node using a cross-wired cable. Please note that when the Uplink port is in
use, Port 1x is unavailable.

Please refer to the following chart when deciding on the type of cable necessary for a
given connection:

DEVICE

PORT
USED

DEVICE BEING

CONNECTED

PORT

TYPE

CABLE TO USE

Hub or

Normal

Crossover (X)

Normal

Switch

Uplink

Straight-Through (||)

Router

Server (or PC)

Straight-Through (||)

Hub or

Normal

Straight-Through (||)

Uplink

Switch

Uplink

Crossover (X)

Server (or PC)

Crossover (X)

The figure below shows how to make an Ethernet connection between the router and
a network end node.

Important Notes on Ethernet Connections

Observe the following rules when connecting devices with twisted-pair Ethernet
cables:

For both end-node and uplink connections, use only EIA Category 5 UTP

cables with RJ-45 plugs.

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.

This is the maximum signal path in twisted-pair Ethernet. Also be sure never

to allow a signal loop to form.