Glossary
66 block Traditionally used in corporate environments for cross-connecting phone system cabling. As 10-Mbps LANs started to grow in popularity in the late 1980s and early 1990s, these termination blocks were used to cross-connect Category 3 UTP cabling. The electrical characteristics (specifically, crosstalk) of a 66 block, however, do not support higher-speed LAN technologies, such as 100-Mbps Ethernet networks.
110 block Because 66 blocks are subject to too much crosstalk for higher-speed LAN connections, 110 blocks can be used to terminate a cable (such as a Category 5 cable) being used for those higher-speed LANs.
802.11a Ratified in 1999, this standard supports speeds as high as 54 Mbps. Other supported data rates (which can be ...
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