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DI-308 ISDN Remote Router
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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.