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  2. Automatic test switching - Wikipedia

    en.wikipedia.org/wiki/Automatic_test_switching

    Automatic test system switching test equipment allows for high-speed testing of a device or devices in a test situation, where strict sequences and combinations of switching must be observed. By automating the process in this way, the possibility of test errors and inaccuracies is minimized, and only systematic errors would generally be ...

  3. Buck converter - Wikipedia

    en.wikipedia.org/wiki/Buck_converter

    An improved technique for preventing this condition is known as adaptive "non-overlap" protection, in which the voltage at the switch node (the point where S 1, S 2 and L are joined) is sensed to determine its state. When the switch node voltage passes a preset threshold, the time delay is started.

  4. ISDN User Part - Wikipedia

    en.wikipedia.org/wiki/ISDN_User_Part

    Release (REL) — Sent to clear the call when a subscriber goes on hook. This is also sent (in direct response to an IAM) if the terminating switch determines that the call cannot be completed. In either case, the terminating switch provides a cause value in the message to explain the reason for the release, e.g., "User busy".

  5. Ringing (signal) - Wikipedia

    en.wikipedia.org/wiki/Ringing_(signal)

    In electrical circuits, ringing is an oscillation of a voltage or current.Ringing can be undesirable because it causes extra current to flow, thereby wasting energy and causing extra heating of the components; it can cause unwanted electromagnetic radiation to be emitted [citation needed]; it can increase settling time for the desired final state; and it may cause unwanted triggering of ...

  6. Ethernet Ring Protection Switching - Wikipedia

    en.wikipedia.org/wiki/Ethernet_Ring_Protection...

    This will cause all other nodes other than RPL owner in the ring to unblock all the blocked ports. This protocol is robust enough to work for unidirectional failure and multiple link failure scenarios in a ring topology. It includes a mechanism to force switch (FS) or manual switch (MS) which is used in field maintenance scenarios.

  7. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    As established calls end, the subswitch becomes unused, and can be repaired. When the next test succeeds, the switch returns to full operation. To prevent frustration with unsensed failures, all the connections between layers in the switch are allocated using first-in-first-out lists (queues). As a result, if a connection is faulty or noisy and ...

  8. Network analyzer (electrical) - Wikipedia

    en.wikipedia.org/wiki/Network_analyzer_(electrical)

    ZVA40 vector network analyzer from Rohde & Schwarz.. A network analyzer is an instrument that measures the network parameters of electrical networks.Today, network analyzers commonly measure s–parameters because reflection and transmission of electrical networks are easy to measure at high frequencies, but there are other network parameter sets such as y-parameters, z-parameters, and h ...

  9. Clock feedthrough - Wikipedia

    en.wikipedia.org/wiki/Clock_feedthrough

    In analog electronics, Clock feedthrough is the result of the coupling between control signals on the analog switch and analog signal passing through the switch. In digital electronics, clock feedthrough is the coupling of the clock signal to the nodes where coupling is not intended.