GLOSSARY

1-phase power    Designed for moderate power requirements, this is normally used in households.

1U    Unit of measurement of height for racks and rack-mounted equipment. 1U equals 1 3/4 inch.

3G    Third-generation wireless telecommunications network.

3-phase power    Designed for demanding power requirements; normally used in industrial environments as well as for data centers.

4G    Fourth-generation wireless telecommunications network; speeds are faster than 3G, which supports more broadband applications.

6to4    An IPv6 transition technology that allows IPv6 traffic over the IPv4 Internet. Routers on both ends must support IPv6 and must have an IPv6 address configured on their internal interface.

A    Domain Name Service (DNS) ...

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