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supervisory signal |
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supervisory signal [¦sü·pər¦vīz·ə·rē ′sig·nəl] (electricity) A signal which indicates the operating condition of a circuit or a combination of circuits in a switching apparatus or other electrical equipment to an attendant. 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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