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Glossary

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Term Description
Manchester Encoding A method of encoding serial data that always produces a transition at the center of the bit cell. If the transition is Low to High, the bit is 0. If the transition is High to Low, the bit is 1. Also referred to as split phase or bi-phase level encoding.
Mask Byte A combination of 1’s and 0’s used in a bit-wise logical operation to set or clear individual bits. Masks can exist as any integer value, such as byte, word, long word, and so on.
mf.sys The Multifunction Enumerator is a driver component of Microsoft Windows. The mf.sys driver handles the PnP and enumeration functions for multifunction devices such as Sealevel multiport serial adapters.
Midspan A PSE device that sits between a non-PoE switch or hub and a PoE-powered device. A midspan is typically an external PoE injector. See: PoE, PSE, Endspan
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