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  2. Power over Ethernet - Wikipedia

    en.wikipedia.org/wiki/Power_over_Ethernet

    In a passive PoE system, the injector does not communicate with the powered device to negotiate its voltage or wattage requirements but merely supplies power at all times. Common 100 Mbit/s passive applications use the pinout of 802.3af mode B (see § Pinouts ) – with DC positive on pins 4 and 5 and DC negative on 7 and 8 and data on 1–2 ...

  3. Phantom power - Wikipedia

    en.wikipedia.org/wiki/Phantom_Power

    Phantom powering was first used for landline copper wire-based plain old telephone service since the introduction of the rotary dial telephone in 1919. One such application in the telephone system was to provide a DC signalling path around transformer-connected amplifiers such as analogue line transmission systems.

  4. Injector - Wikipedia

    en.wikipedia.org/wiki/Injector

    The non-lifting Nathan 4000 injector used on the Southern Pacific 4294 could push 12,000 US gallons (45,000 L) per hour at 250 psi (17 bar). [11] The lifting injector can operate with negative inlet fluid pressure i.e. fluid lying below the level of the injector. It differs from the non-lifting type mainly in the relative dimensions of the nozzles.

  5. Pintle injector - Wikipedia

    en.wikipedia.org/wiki/Pintle_injector

    Fuel in red, oxidizer in blue. The pintle injector is a type of propellant injector for a bipropellant rocket engine.Like any other injector, its purpose is to ensure appropriate flow rate and intermixing of the propellants as they are forcibly injected under high pressure into the combustion chamber, so that an efficient and controlled combustion process can happen.

  6. ISO standards for trailer connectors - Wikipedia

    en.wikipedia.org/wiki/ISO_standards_for_trailer...

    The connectors are designed for 12V systems. Exceptions for the 7-pin connector may exist where they may be used for 6V and 24V. Vehicles and trailers with 6V systems can use the 7-pin or a 5-pin connector, but these are rare today. Heavy trucks that may have 12V systems are usually older (vintage vehicles) or on non-European markets. [1]

  7. Power-line communication - Wikipedia

    en.wikipedia.org/wiki/Power-line_communication

    Power line adapter. Power-line communication (PLC) is the carrying of data on a conductor that is also used simultaneously for AC electric power transmission or electric power distribution to consumers.

  8. Jetronic - Wikipedia

    en.wikipedia.org/wiki/Jetronic

    Mechanical fuel injection, 'K' stands for German: "Kontinuierlich", meaning continuous.Commonly called 'Continuous Injection System (CIS) in the USA. K-Jetronic is different from pulsed injection systems in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar (73.5 psi).

  9. CAN bus - Wikipedia

    en.wikipedia.org/wiki/CAN_bus

    A controller area network (CAN) is a vehicle bus standard designed to enable efficient communication primarily between electronic control units (ECUs). Originally developed to reduce the complexity and cost of electrical wiring in automobiles through multiplexing, the CAN bus protocol has since been adopted in various other contexts.