The connector was named the BNC (for Bayonet Neill–Concelman) after its bayonet mount locking mechanism and its inventors, Paul Neill and Carl Concelman. Wire strippers which strip outer jacket, shield braid, and inner dielectric to the correct lengths in one operation are used. Cable connectors are often designed to be fitted by crimping using a special power or manual tool. Typically the male connector is fitted to a cable, and the female to a panel on equipment. Digital recording equipment uses the connection for synchronization of various components via the transmission of word clock timing signals. BNC connections can also be found in recording studios. BNC connectors were commonly used on 10base2 thin Ethernet network cables and network cards. Consumer electronics devices with RCA connector jacks can be used with BNC-only commercial video equipment by inserting an adapter. The BNC connector is used for analog composite video and digital video interconnects on commercial video devices. Use īNC Tee Connectors with resistive load terminators The interface specifications for the BNC and many other connectors are referenced in MIL-STD-348. They are usually applied for frequencies below 4 GHz and voltages below 500 volts. BNC connectors are made to match the characteristic impedance of cable at either 50 ohms or 75 ohms (with other impedances such as 93 ohms for ARCNET available though less common). Above 4 GHz, the slots may radiate signals, so the connector is usable, but not necessarily stable, up to about 11 GHz. This dielectric causes increasing losses at higher frequencies. It uses an outer conductor with slots and some plastic dielectric on each gender connector. The BNC connector features two bayonet lugs on the female connector mating is fully achieved with a quarter turn of the coupling nut. Similar radio-frequency connectors differ in dimensions and attachment features, and may allow for higher voltages, higher frequencies, or three-wire connections. The type was introduced on military radio equipment in the 1940s and has since become widely applied in radio systems, and is a common type of video connector. The connector has a twist to lock design with two lugs in the female portion of the connector engaging a slot in the shell of the male portion. It is usually applied for video and radio frequency connections up to about 2 GHz and up to 500 volts. It is designed to maintain the same characteristic impedance of the cable, with 50 ohm and 75 ohm types being made. The inner conductor is usually always soldered.The BNC connector (initialism of "Bayonet Neill–Concelman") is a miniature quick connect/disconnect radio frequency connector used for coaxial cable. This means that they are not soldered on, but that the outer braid is placed on a shaft, a sleeve is placed over it and this is then closed with a special crimping tool. Many of the connectors offered here are crimp connectors. This causes a bit of confusion between the terms plug and socket - usually everything with an external thread is called a socket, everything with an internal thread is called a plug, regardless of what the inner conductor looks like. Instead of a male pin you find a female contact and vice versa. RP stands for Reverse Polarity, which means that the inner conductor has a reversed polarity. In the WLAN area, so-called RP-BNC connectors are used by a few manufacturers. The advantage of BNC connections is the easy and quick use with a bayonet lock (instead of thread). BNC connectors are not waterproof, they are not intended for outdoor use. In former times many amateur radios (handheld radios) had a BNC connector, today this connector is used in amateur radio mostly for IF outputs or similar.
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