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Heavy Duty Edge Switches Installation and User Guide(07/05)
56
4.0 OPERATION
4.1 Dual-Speed Functionality, and Switching
The Black Box Heavy-Duty LBHXXX Edge Switches provide SIX
switched ports with combination of fiber and copper or copper only. The architecture
supports a dual speed switching environment, with standard auto-negotiation capability.
The switched RJ-45 ports are full- or half-duplex auto-sensing for mode and
speed, and auto-cross for plug polarity. (See Section 4.2). When the connected device is 10
Mbps, the LBHXXXs obeys all the rules of 10 Mbps Ethernet configurations. The 10 Mbps
users can “communicate” with 100Mbps users as well as other 10 Mbps users through the
switch. Similarly, the 100Mbps traffic obeys the rules of 100Mbps Ethernet, and can
communicate with 10 Mb and 100Mb users. Black Box Heavy-Duty LBHXXX units are
plug-and-play devices. There is no software configuring to be done at installation or for
maintenance, even for the LLL ports. The internal functions of both are described below.