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  2. Wavelength-division multiplexing - Wikipedia

    en.wikipedia.org/wiki/Wavelength-division...

    In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e., colors) of laser light. [1]

  3. Multi-mode optical fiber - Wikipedia

    en.wikipedia.org/wiki/Multi-mode_optical_fiber

    Some 200 and 400 Gigabit Ethernet speeds (e.g. 400GBASE-SR4.2) use wavelength-division multiplexing (WDM) even for multi-mode fiber [10] which is outside the specification for OM4 and lower. In 2017, OM5 has been standardized by TIA and ISO for WDM MMF, specifying not only a minimum modal bandwidth for 850 nm but a curve spanning from 850 to ...

  4. Cable tester - Wikipedia

    en.wikipedia.org/wiki/Cable_tester

    A cable tester is an electronic device used to verify the electrical connections in a signal cable or other wired assembly. Basic cable testers are continuity testers that verify the existence of a conductive path between ends of the cable, and verify the correct wiring of connectors on the cable. More advanced cable testers can measure the ...

  5. Spatial multiplexing - Wikipedia

    en.wikipedia.org/wiki/Spatial_multiplexing

    An often encountered problem in open loop spatial multiplexing is to guard against instance of high channel correlation and strong power imbalances between the multiple streams. One such extension which is being considered for DVB-NGH systems is the so-called enhanced Spatial Multiplexing (eSM) scheme.

  6. Virtual Audio Cable - Wikipedia

    en.wikipedia.org/wiki/Virtual_Audio_Cable

    VAC is the audio equivalent of a MIDI loopback device such as MultiMid or Hubi, and can be used instead of "Stereo Mix" or "What U Hear" features of audio adapters. [1] [2] If more than one application is sending audio through an output virtual cable, VAC is able to mix all of the streams together or create separate corresponding virtual input ...

  7. Windows legacy audio components - Wikipedia

    en.wikipedia.org/wiki/Windows_legacy_audio...

    The MME API or the Windows Multimedia API (also known as WinMM) was the first universal and standardized Windows audio API. Wave sound events played in Windows (up to Windows XP) and MIDI I/O use MME. The devices listed in the Multimedia/Sounds and Audio control panel applet represent the MME API of the sound card driver.

  8. Automatically switched optical network - Wikipedia

    en.wikipedia.org/wiki/Automatically_switched...

    Automatically Switched Optical Network (ASON) is a concept for the evolution of transport networks which allows for dynamic policy-driven control of an optical or SDH network based on signaling between a user and components of the network. [1] Its aim is to automate the resource and connection management within the network.

  9. Electronic test equipment - Wikipedia

    en.wikipedia.org/wiki/Electronic_test_equipment

    Electronic test equipment is used to create signals and capture responses from electronic devices under test (DUTs). In this way, the proper operation of the DUT can be proven or faults in the device can be traced. Use of electronic test equipment is essential to any serious work on electronics systems.

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