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A BNC-Connector is a coaxial cable connector. While there are a handful of different BNC flavours, they all provide the same high quality connection. Because of the high quality of BNC-Connectors, they are extremely common in commercial use (Telecommunications, Video broadcasting, etc), and on medical and test equipment, where performance is critical.

"BNC" stands for "Bayonet Neill Concelman", and is named after engineer Carl Concelman who invented the connector in the late 1940's. BNC-Connectors mate using a 2-stud bayonet coupler, requiring only a quarter-turn of the connector.

Many people may know the 50 Ohm version of BNC-Connectors from an old Ethernet standard called 10base2. Other people may know the 75 Ohm version from high-end DVD or older VHS players. BNC-Connectors these days are often rated to a maximum frequency anywhere between 1 GHz and 10 GHz.

In Wireless LANs, Reverse-Polarity BNC Connectors are more common, and Reverse-Thread versions also exist, although are extremely rare. An alternative to the BNCConnector is the TNC-Connector.

Version 2 (current) modified Tue, 03 Jul 2007 23:11:53 +1000 by LapTop006
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