D-Link 2624ix - Hub - Stackable Podręcznik Użytkownika Pobierz pdf (Strona 37)

Dual-Speed Stackable Hubs User’s Guide

Making Connections 27

Fast Ethernet Module (DFE-260TX)

A Fast Ethernet module provides one additional twisted-pair Fast Ethernet

connection. A twisted-pair connection of this kind is particularly useful for

creating a link between two DFE-916 series hub stacks, placing them in

separate collision domains. A link of this sort eliminates the need for a

separate switch to separate stacks into separate domains. Separating the

stacks into separate collision domains overcomes the Fast Ethernet two-

repeater limitation, and effectively doubles overall bandwidth.

The recommended use for this module is to connect to another module of

this kind in a second stack.

The Fast Ethernet module uses a MDI-X connector (not a straight MDI-II);

therefore, a crossover cable must be used when connecting the module to

another module (and under most other circumstances). See Appendix A for

pinout information.

The Fast Ethernet module includes the following LED indicators:

• Power/Tx—This LED is lit when the hub is on, and blinks when pack-

ets are being transmitted by the module.

• Link/Rx—This LED is lit when the port is properly connected to a

powered-on device, and blinks when packets are being received by the

module.

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D-Link 2624ix - Hub - Stackable Podręcznik Użytkownika Strona 37