Front Panel

7

The following diagrams show the relationship between cable type and which cascade configuration to use. To verify the pin wiring of your UTP cable, see “Appendix A Pin Assignments.”

Using a Straight-Through Cable

EtheRx Switch

CASCADE

Leave the cascade switch in the default crossover (MDI-

X)position when connecting the last UTP port on the Fast EtheRx Switch to a network card or router (or

other MDI configured device).

EtheRx Switch

CASCADE

Move the cascade switch to the straight-through position when connecting the last UTP port on the Fast EtheRx Switch to another hub or switch (or other MDI- X configured device).

Using a Crossover Cable

EtheRx Switch

CASCADE

Leave the cascade switch in the default crossover (MDI-

X)position when connecting the last UTP port on the Fast EtheRx Switch to another hub or switch (or other MDI-X configured device).

EtheRx Switch

CASCADE

Move the cascade switch to the straight-through position when connecting the last UTP port on the Fast EtheRx Switch to a network card or router (or other MDI configured device).

Notes on MDI and MDI-X

MDI (Media Dependent Interface) is the standard that defines the mechanical and electrical configuration of a UTP port. For any two devices to 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.

Port 1 through port 4 on the KNS500/WG, and port 1 through port 7 on the KNS800/WG, like all normal hub ports, are configured MDI-X. The last UTP port, port 5 on the KNS500/WG, or port 8 on the KNS800/WG, supports both port configurations, MDI and MDI-X. All NICs (Network Interface Cards) and Router ports are usually by default configured MDI. A simple illustration shows the relationship of cable types to port types:

Switch

Port

For Connection to

For Connection to a

Position

Config

another Hub Port (MDI-X)

Network Adapter (MDI)

 

 

 

 

 

 

 

 

 

MDI-X

Use Crossover cable

Use Straight-through cable

 

 

 

 

 

 

 

 

 

MDI

Use Straight-through cable

Use Crossover cable

 

 

 

 

 

 

 

 

 

KNS800/WG User’s Guide - Rev. B01

Kingston Technology Company

Page 11
Image 11
Kingston Technology KNS500/WG, KNS800/WG manual Using a Straight-Through Cable