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  • BS 6450-2:1993

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    PRIVATE BRANCH EXCHANGES FOR CONNECTION TO PUBLIC SWITCHED TELEPHONE NETWORKS RUN BY CERTAIN PUBLIC TELECOMMUNICATIONS OPERATORS - SPECIFICATION FOR PRIVATE BRANCH EXCHANGES WITH TERMINATING STATIONS TREATED AS AN ENTIRETY

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  01-05-2009

    Language(s):  English

    Published date:  01-01-1993

    Publisher:  British Standards Institution

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    Abstract - (Show below) - (Hide below)

    Specifies requirements for private branch exchanges to be connected at the users' premises to the analogue interfaces of a PSTN for the terminating stations and their cabling that are treated with the private branch exchange as an entirety, or for other analogue interfaces of the PTSN. Applies to PBXs with their terminating stations that are installed on a single set of premises. Does not specify the complete requirements for a particular PBX installation. Coverage includes: abbreviations, definitions, notation and symbol; absolute signalling power levels to the PTSN; limits of signals sent to PSTN line. Also includes annexes and tables.

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    Committee TCT/8
    Development Note Inactive for the new design. Supersedes 91/94268 DC and BS 6450-2(1983) (09/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn

    Standards Referencing This Book - (Show below) - (Hide below)

    BS 7266-1(1990) : 1990 CONNECTORS FOR ACCESS TO THE INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - SPECIFICATION FOR A BASIC ACCESS INTERFACE CONNECTOR AND ITS CONTACT ASSIGNMENTS
    BS 6450-5.1:1993 PRIVATE BRANCH EXCHANGES FOR CONNECTION TO THE BRITISH TELECOMMUNICATIONS PUBLIC SWITCHED TELEPHONE NETWORK - FACILITIES ON PRIVATE BRANCH EXCHANGES - SPECIFICATION FOR FACILITIES ON PRIVATE BRANCH EXCHANGES WITH TERMINATING STATIONS TREATED AS AN ENTIRETY
    BS 4669:1971 SPECIFICATION FOR AN ARTIFICIAL EAR OF THE WIDE BAND TYPE FOR THE CALIBRATION OF EARPHONES USED IN AUDIOMETRY
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