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  2. Power over Ethernet - Wikipedia

    en.wikipedia.org/wiki/Power_over_Ethernet

    Passive DC-to-DC injectors also exist which convert a 9 V to 36 V DC, or 36 V to 72 V DC power source to a stabilized 24 V 1 A, 48 V 0.5 A, or up to 48 V 2.0 A PoE feed with '+' on pins 4 & 5 and '−' on pins 7 & 8. These DC-to-DC PoE injectors are used in various telecom applications. [58]

  3. Packet injection - Wikipedia

    en.wikipedia.org/wiki/Packet_injection

    Packet injection (also known as forging packets or spoofing packets) in computer networking, is the process of interfering with an established network connection by means of constructing packets to appear as if they are part of the normal communication stream.

  4. Power-line communication - Wikipedia

    en.wikipedia.org/wiki/Power-line_communication

    There are also many specialized niche applications that use the mains supply within the home as a convenient data link for telemetry. For example, in the UK and Europe a TV audience monitoring system uses powerline communications as a convenient data path between devices that monitor TV viewing activity in different rooms in a home and a data ...

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  6. Epinephrine autoinjector - Wikipedia

    en.wikipedia.org/wiki/Epinephrine_autoinjector

    Vastus lateralis site for intramuscular injection ALK Pharma Jext300, adrenaline autoinjector, without its safety cover. Epinephrine autoinjectors are hand-held devices carried by those who have severe allergies; the epinephrine delivered by the device is an emergency treatment for anaphylaxis.

  7. Twisted pair - Wikipedia

    en.wikipedia.org/wiki/Twisted_pair

    ISO/IEC 11801:2002 (Annex E) attempts to internationally standardize the various shielding designations for twisted pair (TP) cables using an explicit two-part abbreviation in the form of x/xTP, where the first x indicates the shielding for the overall cable and the second x indicates the shielding for individual pairs or quads, where each x ...

  8. Unit injector - Wikipedia

    en.wikipedia.org/wiki/Unit_injector

    A unit injector (UI) is a high-pressure integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component. The plunger pump used is usually driven by a shared camshaft. In a unit injector, the device is typically lubricated and cooled by the fuel itself.

  9. Common rail - Wikipedia

    en.wikipedia.org/wiki/Common_rail

    Common rail fuel system on a Volvo truck engine. In 1916 Vickers pioneered the use of mechanical common rail systems in G-class submarine engines. For every 90° of rotation, four plunger pumps allowed a constant injection pressure of 3,000 pounds per square inch (210 bar; 21 MPa), with fuel delivery to individual cylinders being shut off by valves in the injector lines. [1]

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