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Term Main definition

USB- A hardware interface used to connect PC devices. USB is hot-swappable, meaning that a computer does not need to be turned off when new devices are plugged in.

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USOC Universal Service Order Code

Developed by AT&T/the Bell System, the Universal Service Order Code (pronounced

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UTP Unshielded twisted pair

(1) A pair of copper wires twisted together with no electromagnetic shielding around them. (2) A cable containing multiple pairs of UTP wire. Each wire pair is twisted many times per foot (higher grade UTP cable can have more than 20 twists per foot). The twists serve to cancel out electromagnetic interference that the transmission of electrical signal through the pairs generates. An unshielded jacket made of some type of plastic then surrounds the individual twisted pairs. Twisted-pair cabling includes no shielding. UTP most often refers to the 100 ohm Categories 3, 5e, and 6 cables specified in the ANSI/TIA/EIA-568-B standard.

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UWB/Ultra Wide Band

Covering the full 1800MHz -2600MHz bands

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