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  2. TIA-569-B - Wikipedia

    en.wikipedia.org/wiki/TIA-569-B

    Fill capacity is provided for furniture systems. Fill capacity is provided for perimeter raceways. Design requirements for poke-thru fittings. Access floor heights are adjusted. In-floor systems include underfloor duct and cellular raceways. Pathway fill is provided for cable tray. A discussion of telecommunications diversity has been added.

  3. Busy-hour call attempts - Wikipedia

    en.wikipedia.org/wiki/Busy-hour_call_attempts

    In telecommunications, busy-hour call attempts (BHCA) is a teletraffic engineering measurement used to evaluate and plan capacity for telephone networks. [1] BHCA is the number of telephone calls attempted at the sliding 60-minute period during which occurs the maximum total traffic load in a given 24-hour period (BHCA), and the higher the BHCA, the higher the stress on the network processors.

  4. Bell System Practices - Wikipedia

    en.wikipedia.org/wiki/Bell_System_Practices

    A typical volume of Bell System Practices from the 1970s. The Bell System Practices (BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing, and maintaining the telephone plant of the Bell System under direction of AT&T and Bell Telephone Laboratories. [1]

  5. Telecommunications - Wikipedia

    en.wikipedia.org/wiki/Telecommunications

    The effective capacity to exchange information worldwide through two-way telecommunication networks grew from 281 petabytes (PB) of optimally compressed information in 1986 to 471 PB in 1993 to 2.2 exabytes (EB) in 2000 to 65 EB in 2007. [37]

  6. Signalling System No. 7 - Wikipedia

    en.wikipedia.org/wiki/Signalling_System_No._7

    Signalling System No. 7 (SS7) is a set of telephony signaling protocols developed in the 1970s that is used to setup and teardown telephone calls on most parts of the global public switched telephone network (PSTN).

  7. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    9600 Series (Branded in Australia as Telecom 9600 series) 9600VS; 9600S; 9600M; 9600L; Coral (branded as Fujitsu in Australia/New Zealand 1996–2002, manufactured by Tadiran Telecom) Coral FlexiCom 200 (formerly Coral SL, discontinued) Coral FlexiCom 300 (formerly Coral I, discontinued) Coral FlexiCom 400 (formerly Coral II)

  8. Channel capacity - Wikipedia

    en.wikipedia.org/wiki/Channel_capacity

    To determine the channel capacity, it is necessary to find the capacity-achieving distribution () and evaluate the mutual information (;). Research has mostly focused on studying additive noise channels under certain power constraints and noise distributions, as analytical methods are not feasible in the majority of other scenarios.

  9. Chilton Company - Wikipedia

    en.wikipedia.org/wiki/Chilton_Company

    Chilton Company (also known as Chilton Printing Co., Chilton Publishing Co., Chilton Book Co. and Chilton Research Services) is an American former publishing company, most famous for its trade magazines, and automotive manuals. It also provided conference and market research services to a wide variety of industries.