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  2. Physical layer - Wikipedia

    en.wikipedia.org/wiki/Physical_layer

    The Internet protocol suite, as defined in RFC 1122 and RFC 1123, is a high-level networking description used for the Internet and similar networks. It does not define a layer that deals exclusively with hardware-level specifications and interfaces, as this model does not concern itself directly with physical interfaces. [9] [10]

  3. Stack interchange - Wikipedia

    en.wikipedia.org/wiki/Stack_interchange

    In 2011, the previously four-level stack interchange between I-610 and I-10 on the city's east side gained a new (though long-planned) [8] level of complexity with the opening of four ramps connecting the new US 90 (Crosby Freeway) to the east, featuring direct movements for the new freeway to and from the southeast quadrant of I-610, to ...

  4. Signalling Connection Control Part - Wikipedia

    en.wikipedia.org/wiki/Signalling_Connection...

    The SCCP Class 0 protocol class is the most basic of the SCCP protocol classes. Network Service Data Units passed by higher layers in the originating node are delivered by the SCCP to higher layers in the destination node. They are transferred independently of each other. Therefore, they may be delivered to the SCCP user out-of-sequence.

  5. Synchronous optical networking - Wikipedia

    en.wikipedia.org/wiki/Synchronous_optical_networking

    The Synchronous Transport Module, level 1 (STM-1) frame is the basic transmission format for SDH—the first level of the synchronous digital hierarchy. The STM-1 frame is transmitted in exactly 125 μs , therefore, there are 8,000 frames per second on a 155.52 Mbit/s OC-3 fiber-optic circuit.

  6. Message Transfer Part - Wikipedia

    en.wikipedia.org/wiki/Message_Transfer_Part

    MTP Level 3 is sometimes abbreviated MTP3; MTP Level 2, MTP2. [2] MTP and SCCP are together referred to as the Network Service Part (NSP). [3] There is no one-to-one mapping of MTP Levels 1 through 3 onto the OSI model. [4] Instead, MTP provides the functionality of layers 1, 2 and part of layer 3 in the OSI model. [5]

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  8. Comstock Lode - Wikipedia

    en.wikipedia.org/wiki/Comstock_Lode

    Dayton Consolidated The Dayton Consolidated Mill in Silver City processed ore from its own mine, as well as operating as a "custom" mill for a number of mines in the area. Con Chollar The Con Chollar Mining Company built a 135 ton-per-day flotation mill near the south end of Gold Hill to re-process tailings from several nearby mines.

  9. Layers of protection analysis - Wikipedia

    en.wikipedia.org/wiki/Layers_of_protection_analysis

    Layers of protection analysis (LOPA) is a technique for evaluating the hazards, risks and layers of protection associated with a system, such as a chemical process plant. In terms of complexity and rigour LOPA lies between qualitative techniques such as hazard and operability studies (HAZOP) and quantitative techniques such as fault trees and ...