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  2. Fiber Distributed Data Interface - Wikipedia

    en.wikipedia.org/wiki/Fiber_distributed_data...

    FDDI provides a 100 Mbit/s optical standard for data transmission in local area network that can extend in length up to 200 kilometers (120 mi). [2] Although FDDI logical topology is a ring-based token network, it did not use the IEEE 802.5 Token Ring protocol as its basis; instead, its protocol was derived from the IEEE 802.4 token bus timed token protocol.

  3. LTE frequency bands - Wikipedia

    en.wikipedia.org/wiki/LTE_frequency_bands

    Networks on LTE bands 1, 3 (LTE-FDD) are suitable for roaming in ITU Regions 1, 3 and partially Region 2 (e.g. Costa Rica, Venezuela, Brazil and some Caribbean countries or territories. Networks on LTE band 20 (LTE-FDD) are suitable for roaming in ITU Region 1 only. Networks on LTE band 5 (LTE-FDD) are suitable for roaming in ITU Regions 2 and 3.

  4. List of computing and IT abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_computing_and_IT...

    2NF—second normal form; 3GL—third-generation programming language; 3GPP—3rd Generation Partnership Project – 3G comms; 3GPP2—3rd Generation Partnership Project 2; 3NF—third normal form; 386—Intel 80386 processor; 486—Intel 80486 processor; 4B5BLF—4-bit 5-bit local fiber; 4GL—fourth-generation programming language; 4NF ...

  5. LTE (telecommunication) - Wikipedia

    en.wikipedia.org/wiki/LTE_(telecommunication)

    Long-Term Evolution Time-Division Duplex (LTE-TDD), also referred to as TDD LTE, is a 4G telecommunications technology and standard co-developed by an international coalition of companies, including China Mobile, Datang Telecom, Huawei, ZTE, Nokia Solutions and Networks, Qualcomm, Samsung, and ST-Ericsson.

  6. FDD - Wikipedia

    en.wikipedia.org/wiki/FDD

    Familial Danish dementia, a rare form of dementia; Floppy disk drive; Frequency-division duplex, a telecommunications duplex indexing method; Frequency domain decomposition, a system identification technique; LTE-FDD, a 4G telecommunications technology and standard; Timex FDD, a nearly complete computer by Timex

  7. Hybrid fiber-coaxial - Wikipedia

    en.wikipedia.org/wiki/Hybrid_fiber-coaxial

    Hybrid fiber-coaxial (HFC) is a broadband telecommunications network that combines optical fiber and coaxial cable.It has been commonly employed globally by cable television operators since the early 1990s.