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SwitcHub-2s User’s Guide
2 Glossary
Ethernet
A network communication system developed and standardized by DEC, Intel, and
Xerox, using baseband transmission, CSMA/CD access, logical bus topology, and
coaxial cable. The successor IEEE 802.3 standard provides for integration into the OSI
model and extends the physical layer and media with repeaters and implementations that
operate on fiber optics, broadband, and twisted-pair.
IEEE 802.3 Standard
Standard for the physical and electrical connections in local area networks developed by
the IEEE. The IEEE 802.3u standard covers these same issues for 100 Mbps networks.
LED
Light emitting diode on the front panel of the SwitcHub used for monitoring a hub or
network condition. An LED display corresponds to a hub condition.
Local Area Network (LAN)
A group of interconnected computers and support devices.
RJ-45 Connector
Most common terminator for twisted-pair wiring.
Shielded Twisted-Pair (STP)
Twisted-pair wire covered with an external aluminum-foil or woven-copper shield
designed to reduce excessive noise pick up or radiation.
Station Port
SwitcHub-2s MDI-X ports which are used for connecting the hub to any workstation or
server that has a properly installed network adapter card.