Notes On Mdi And Mdi-X - Kingston Technology KNS1600 User Manual

Kingston technology 19" rack-mountable fast ethernet switch
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6
The following diagrams show the relationship between cable type and which
UTP port connector to use. To verify the pin wiring of your UTP cable, see
"Appendix A Pin Assignments."
Using a Straight-Through Cable
Using a Crossover Cable

Notes on MDI and MDI-X

MDI (Media Dependent Interface) is the standard that defines the mechanical
and electrical configuration of a UTP port.
communicate with each other on the network, the transmitter of one device
must be connected to the receiver of the other device. This can be achieved by
using a crossover cable, or by using the MDI-X port, which implements the
crossover internally.
Ports 1 through 15, like all normal hub ports, are configured as MDI-X. Port 16
supports both MDI and MDI-X configurations. All NICs (Network Interface
Cards) and Router ports are usually by default configured MDI.
Note: Do not use both ports labeled port 16, only one connection can be used.
Port 16
Port
Config
MDI-X
MDI
Kingston Technology Company
Use
the
port
labeled
when
connecting to a
network card or
other MDI device.
Use
the
port
labeled
when
connecting to a
network card or
other MDI device.
For connection to
another hub (MDI-X)
Use cross-over cable
Use straight-through cable
For any two devices to
For connection to a NIC
or router (MDI)
Use straight-through cable
Use cross-over cable
KNS1600/R User's Guide - Rev. A00
Front Panel
Use
the
port
labeled
when
connecting to a
hub or other MDI-
X device.
Use
the
port
labeled
when
connecting to a
hub or other MDI-
X device.

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