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control signal |
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control signalA pulse or frequency of electricity or light that represents a control command as it travels over a network, a computer channel or wireless. In the data communications world, control signals typically travel the same path as the data either as separate packets or contained within the data packets. In the traditional telephone communications world, control signals are sent over a separate network (see SS7). Contrast with data signal. See signal and signaling. control signal [kən′trōl ‚sig·nəl] (computer science) A set of pulses used to identify the channels to be followed by transferred data. (control systems) The signal applied to the device that makes corrective changes in a controlled process or machine. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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and can also provide a control signal for process switchover from filling to holding phases. A solenoid switch, operating according to a control signal reflecting the signal transmitted by the seedling detector, connects the geared outer shaft to the continuously rotating inner shaft for the period of one shaft revolution when seedling replacement is required. But even that will be automated in about a year because the department has rewritten the software it uses to control signal timing at the computers housed in the gray boxes at intersections. |
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