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  • crossover cable

    A crossover cable is a cable that is used to interconnect two computers by "crossing over" (reversing) their respective pin contacts.  Definition

  • Personal Access Communications System (PACS)

    Personal Access Communications System (PACS) is a type of wireless telephone network compatible with telephone sets, answering machines, fax machines, and computers.  Definition

  • satellite Internet connection

    A satellite Internet connection is an arrangement in which the upstream (outgoing) and the downstream (incoming) data are sent from, and arrive at, a computer through a satellite.  Definition

  • satellite return Internet connection

    A satellite return Internet connection is an arrangement in which incoming data arrives at your computer from a satellite downlink and outgoing data (such as your request for the next Web page) is sent over a regular telephone line.  Definition

  • spatial division multiple access (SDMA)

    Also see frequency division multiple access (FDMA) and time division multiple access (TDMA).  Definition

  • visitor-based networking (VBN)

    Visitor-based networking (VBN) is the provision of high-speed Internet access for mobile PC users in need of temporary service in public places.  Definition

  • balun

    A balun is a device that joins a balanced line (one that has two conductors, with equal currents in opposite directions, such as a twisted pair cable) to an unbalanced line (one that has just one conductor and a ground, such as a coaxial cable).  Definition

  • symmetric communications

    Compare asymmetric communications.  Definition

  • Primary Rate Interface (PRI)

    In the Integrated Services Digital Network (ISDN), there are two levels of service: the Basic Rate Interface (BRI), intended for the home and small enterprise, and the Primary Rate Interface (PRI), for larger users.  Definition

  • value-added network (VAN)

    A value-added network (VAN) is a private network provider (sometimes called a turnkey communications line) that is hired by a company to facilitate electronic data interchange (EDI) or provide other network services.  Definition

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