Bnc Video
BNC Connectors for Audio/Visual Cabling
BNC is a radio frequency connector, a type of coaxial cable, which is used for connecting data networks and audio/video applications to radios, computers and TVs. If you are looking for audio/visual connector cables for the computer or any other electronic equipment, then BNC connectors could an option to consider.
If you are looking for audio/visual connector cables to connect your new portable media player and stereo speakers to the computer, or replacing the old ones because of signal interference, then BNC connectors can be a very good option.
BNC connector is an acronym for Bayonet Neill-Concelman connector. BNC is a Radio Frequency connector, a type of coaxial cable, which is used for connecting data networks and audio/video applications to radios, computers, TVs and other radio frequency electronic equipment. This connector derived its name from two things – firstly, from the used technology of the connection, and secondly, from the names of its very own creators, Carl Concelman and Paul Neill, of Bell Labs.
BNC connector has a bayonet-like shell plug (the male portion) with two small pins that fit into the spiral slots on the receptacles (the female portion) of the connector. After the plug has been inserted into the receptacles, it is twisted into a locking position. This connector is generally used on 10BASE-2 thin Ethernet networks, on both ends – the chain interactions and the network cards.
There are two versions of BNC connectors, 50 Ohm and 75 Ohm. These are matched with the cables of the same properties for use. Frequencies below 2GHz use 50 Ohm while that below 4GHz use 75 Ohm. In the beginning, only 50 Ohm versions of BNC connectors were produced. At the time of its application, it was joined with various other cables and the difference occurring in the wires was unnoticeable at lower frequencies. Later on, the 75 Ohm category emerged, which can be recognized by the absent or the reduced dielectric at each mating end. For DS3 Telco central office applications, 75 Ohm BNC connectors are used, while 50 Ohm is used for RF and data.
A BNC connector is most commonly used for RG58 cables in order to terminate its coaxial cable. Once the BNC connector is joined to the RG58 cable, compound video is produced just like the one from the commercial video equipment. A lot of coaxial cables should not be used for interconnecting BNC connectors and RG58 cables, as it will lead to ground loops generating an unwanted stream of current in the conductor that attaches the two points at the same potential.
Some people use BNC connector to connect the monitors in order to maximize the accuracy of the signals released by the video adapter. It makes for an ideal alternative to the RCA connector, when cable connector is used for common composite video devices. It is actually another form of RCA connector which is often used with RCA jacks by some large consumer electronic devices through a simple adapter. For higher frequencies, TNC (Threaded Neill-Concelman) connectors are adapted, as it offers standard performance.
For buying BNC connectors or any other kind of audio/visual cables, you can go on the internet. There are many online stores that offer all kinds of cables including network cables, audio/visual cables, etc. at affordable prices.
About the Author
This article has been written by an expert associated with CNA, a premier online store that offers all kinds of computer tools including audio/visual, network hardware, printer supplies, tools & testers, security accessories and more.
How can I take an RCA (Red/White/Yellow) cable and connect it to an old "Cable-Ready" (Coax) TV without a VCR?
I have an older TV - it JUST has a Coaxial cable input (ye olde "Cable-Ready" TV) - I'm daisy-chaining through a VCR to take my WII and PS2 outputs and connect them into the TV...BUT, if there were a cable adapter, I could connect it directly...any ideas on taking a Component Audio/Video cable and converting it back into BNC/Coaxial?
RF modulator does that. See the link:
Bnc Video
BNC Amp and CCTV Video Splitter
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BNC VIDEO BALUN $33 BNC VIDEO BALUN |
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BNC TO RJ45 VIDEO BALUN $8 BNC TO RJ45 VIDEO BALUN |
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Hosa Video Cable BNC to BNC $4.95 The Hosa BNC Video Cable is a 75-ohm, coaxial cable with BNC Male connectors. In addition to video, it is also perfect for word clock applications. |
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BNC Dual Video Terminal Board $159.88 BNC DUAL VIDEO MODULE FOR PLASMA SERIES 9-10 |
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Lorex BNCC Video Adapter - 1 x BNC Female Video - 1 x BNC Female Video $4.24 BNC FEMALE TO FEMALE CONNECTOR SINGLE BNC FEMALE TO BNC FEMALE |
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Steren BNC Connector - Video Connector - BNC $7.9 STEREN RG6 2 PC BNC 10PK |
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Monster Cable BNC RG6 Connector - Video Connector $49 MONSTER BNC CONNECTOR EOL |
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Mace Multi-Purpose BNC Cable - 2 x BNC Audio/Video - 2 x BNC Audio/Video - 100ft $24.7 MACE 100FT EXT WIRE WITH BNC |
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Mace Standard BNC Cable - BNC Audio/Video - BNC Audio/Video - 50ft $17.74 MACE 50FT EXTENSION WIRE WITH BNC |
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Swann 50' BNC-to-BNC Cable $18.99 Connect this 50' BNC-to-BNC cable to your compatible Swann video camera with the included connectors for increased signal transmission and reduced interference. |
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Commercial Grade BNC Series video connector $19.99 Steren Commercial Grade BNC Series - Video connector - BNC (M) - ( RG-6 ) (pack of 10 ) |
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Compression BNC-Type Connector for RG59 - video connector $187.99 Cables To Go Compression BNC-Type Connector for RG59 - Video connector - BNC (M) - ( RG-59 ) - chrome (pack of 50 ) |
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Compression BNC-Type Connector for RG6 - video connector $39.99 Cables To Go Compression BNC-Type Connector for RG6 - Video connector - BNC (M) - ( RG-6 ) - chrome (pack of 10 ) |
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RCA to BNC Adapter - video / audio adapter $4.99 StarTech.com RCA to BNC Adapter - Video / audio adapter - RCA (M) - BNC (F) - coaxial |
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MuxLab 500009 Video Connector - BNC Male $17.03 CCTV SCREW TERMINAL BALUN BNC |
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Camera Extension Cable - BNC Video, RCA Video - BNC Video - 100ft - Black $28.86 SECURITY LABS 100FT BNC VIDEO PWR EXTN CABLE |
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Camera Extension Cable - BNC Video, RCA Video - BNC Video - 50ft - Black $18.92 SECURITY LABS 50FT BNC VIDEO PWR EXTN CABLE |
BNC connector- what is it meant for?
BNC connector is a radio frequency and can be used as a wire line to join electronic tools. There are several versions of BNC connectors in the market at this time. Some of them are TNC and triaxial connectors to name a few.
The BNC connector also known as Bayonet Neill-Concelman or is a Radio Fundamental (RF) connector used as coaxial wire, is bascially adapted to connect a television or a radio and other radio-frequency band electronic tools. It is adapted in frequencies which are below 3 Ghz. The connector is adapted for RF signal connections. It is an option to the RCA connector when used for composite video on mainstream video devices, although various consumer electronic devices with RCA jacks are usually adapted with BNC-only video material via simple adapter. BNC connectors are commonly used on 10base2 thin Ethernet networks, both on cable interactions and network cards. The TNC (threaded) connector is mostly adapted for standard performances at higher frequencies than adapted with the BNC connector.
The name of the connector is derived from the collaboration of two things. They are listed as below:
1)The connecting applied science that has been employed behind the working of the connector
2)The names of the two inventors of the device. Those two inventors were Carl Concelman and Paul Neill, both of whom worked in the Bell Labs. Their main purpose was to develop a connector that adapted the principle of bayonet mount mechanism for locking.
The connector was a practical experiment, based on the research of Octavio M. Salati. Neill and Concelman perfected an earlier design and created a connector that has been used in several applications over the last several decades. It has been organized to process both the serial digital inter-face and the analog video broadcast. It is also capable of audio-interface managing transmissions.
As mentioned before the BNC connector is adapted for RF signal connections, in digital and analog video broadcast. Apart from that, it is useful for aviation electronics, amateur radio antenna connections and other types of electronic test equipment and so on. They exist in 50 and 75 ohm versions. During its early days, all the connectors were 50 ohm and were joined together with different power lines and the differences in the wires were not very noticeable at a lower frequency band. The newer ones, i.e., the 75 ohm category may be recognized by the absent or the reduced dielectric in the mating ends. The different wires can be mated with each other, although the differences may lead to signal reflections. The 75 ohm connectors are mostly adapted for DS3 Telco central office applications and are also adapted in video and 50 ohm is adapted for RF and data.
There are different types of connectors which are similar to BNC connector. They are briefly listed as follows:
A miniature version of BNC, known as TNC is also available in the market. It is superior to BNC and at microwave frequencies
Triaxial BNC connector, which was mostly used in NIM electronics. These have been replaced by LEMO connectors which permit higher density.
In USSR, the connectors were replicated as SR-75 which is Russian:-75 and SR-50 which is Russian: -50.
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