Chapter 25. X

X10 n.

A popular communications protocol for powerline carrier (PLC) systems that uses existing electrical wiring in a home or building for home networking. X10 uses RF signals to communicate between transmitters and receivers. See also home automation n., home network n., powerline carrier system.

X.200 n.

See X series n..

X.25 n.

A recommendation published by the ITU-T (formerly CCITT) international communications standards organization that defines the connection between a terminal and a packet-switching network. X.25 incorporates three definitions: the electrical connection between the terminal and the network, the transmission or link-access protocol, and the implementation of virtual circuits between network users. Taken together, ...

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