Reference Guide

Connecting Hubs Together
Twisted-Pair Cascade Connections
To expand your network, the hub can be connected to other hubs by using
the Media Dependent Interface (MDI) switch.
The MDI/MDI-X switch controls how the signals are sent through the
twisted-pair cable connected to Port 16. The hub is shipped with the switch
in the MDI-X position. The switch is a push/push switch with two positions:
In the MDI position, use Port 16 to connect your hub to another
hub. In this position, the hub reverses the Tx and Rx port pairs for
you. This allows you to use “straight-through” cable rather than
“cross-over” cable to connect two hubs together. The cable can be
up to 100 meters in length. In the MDI position, the switch is
exposed by 0.06 inches (1.5 mm) in front of the bezel.
In the MDI-X position, use Port 16 to connect your hub to a PC or
similar device using “straight-through” cable. In the MDI-X position,
the switch is exposed by 0.2 inches (5 mm) in front of the bezel.
Caution You must disconnect the device connected to Port 16 before changing
the position of this switch. If you push the MDI/MDI-X switch and
change its position while your network is running, the hub or PC
connected to Port 16 will be disrupted. To restore your network, push
the MDI/MDI-X switch in again.
MDI/MDI-X
switch
Installing the Hub
Installing the Hub
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