Network Hardware Definitions

  • A

    A-Law

    A-Law is the standard codec (compression/decompression) algorithm for pulse code modulation (PCM) from the ITU-T (the Telecommunication Standardization Sector of the International Telecommunications Union).

  • AAUI (Apple attachment unit interface)

    An AAUI (Apple attachment unit interface) is the 14- or 15-pin port or connection interface on earlier models of Macintosh computers that allowed it to be connected by a short interface cable (or "transceiver") to an Ethernet cable.

  • Advanced Intelligent Network (AIN)

    The Advanced Intelligent Network (AIN) is a telephone network architecture that separates service logic from switching equipment, allowing new services to be added without having to redesign switches to support new services.

  • American Wire Gauge (AWG)

    American Wire Gauge (AWG) is a U.S. standard set of non-ferrous wire conductor sizes.

  • autofax

    Autofax is the automatic (computer-initiated) sending of a facsimile (fax) message over a network in one of two ways: ( to a receiving computer or fax machine that is always ready to receive and store or immediately print such transmissions or (2), in some cases, as an e-mail note.

  • automatic repeat request (ARQ)

    Automatic repeat request (ARQ) is a protocol for error control in data transmission.

  • B

    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).

  • Bel

    In electronics and communications, the Bel expresses the logarithmic ratio between two levels of signal power, voltage, or current.

  • Bellcore (Bell Communications Research)

    Bellcore (Bell Communications Research) provides certain centralized research and standards coordination for the regional Bell operating companies (RBOC)s.

  • branch office box (BOB)

    A Branch Office Box (BOB) is a server appliance that has been optimized to provide distributed support for simple utility functions that are required locally but are difficult to provide over a WAN... (Continued)

  • brouter

    A brouter (pronounced BRAU-tuhr or sometimes BEE-rau-tuhr) is a network bridge and a router combined in a single product.

  • C

    cable head-end

    A cable head-end (or headend) is the facility at a local cable TV office that originates and communicates cable TV services and cable modem services to subscribers.

  • CIDR (Classless Inter-Domain Routing or supernetting)

    CIDR (Classless Inter-Domain Routing) is a way to allocate Internet addresses more flexibly than the original system of Internet Protocol (IP) address classes allowed.

  • Cisco Integrated Service Routers Generation 2 (ISR G2)

    ISR G2 is a second generation Integrated Services Router (ISR) from Cisco Systems, Inc.

  • clone

    A clone is an identical copy of something and is a term that first became familiar to the public from the biosciences.

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