Threaded Neill-Concelman connector
Encyclopedia
The TNC connector is a threaded version of the BNC connector
. The connector has a 50 Ω impedance
and operates best in the 0–11 GHz
frequency spectrum. It has better performance than the BNC connector at microwave
frequencies. Invented in the late 1950s and named after Paul Neill
of Bell Labs
and Carl Concelman
of Amphenol
, the TNC connector has been employed in a wide range of radio and wired applications.
equipment manufacturers to comply with specific local regulations, e.g. those from the FCC
, which are designed to prevent consumers from connecting antennas which exhibit gain and therefore breach compliance. This is the case for the popular Cisco line of Wi-Fi products. RP-TNC can also be abbreviated as RTNC
of other impedances, but a 75-ohm series is also available, providing a good SWR
to about 1 GHz. These can be recognized by a reduced amount of dielectric
in the mating ends. They are intermatable with standard types.
, a manufacturer of consumer networking equipment, uses RP-TNC connectors for several of its Wi-Fi-certified routers, including the popular WRT54G
.
Telex Communications
, a manufacturer of hearing aids and audio equipment, uses TNC connectors on its Radiocom BTR-800 partyline intercom
base station for the transmit and receive antennas.
Camplex, a Camera multiplexing unit, uses TNC connectors to send power/tallies/intercom to a camera. The camera sends back audio, video, and intercom.
Icom, a mobile telecommunications equipment manufacturer, uses TNC antenna output terminals in some models intended for the professional VHF PMR market.
Electro-Voice
, a pro audio manufacturer, uses these style connectors on their wireless microphone systems.
BNC connector
The BNC connector ' is a common type of RF connector used for coaxial cable. It is used with radio, television, and other radio-frequency electronic equipment, test instruments, video signals, and was once a popular computer network connector. BNC connectors are made to match the characteristic...
. The connector has a 50 Ω impedance
Characteristic impedance
The characteristic impedance or surge impedance of a uniform transmission line, usually written Z_0, is the ratio of the amplitudes of a single pair of voltage and current waves propagating along the line in the absence of reflections. The SI unit of characteristic impedance is the ohm...
and operates best in the 0–11 GHz
GHZ
GHZ or GHz may refer to:# Gigahertz .# Greenberger-Horne-Zeilinger state — a quantum entanglement of three particles.# Galactic Habitable Zone — the region of a galaxy that is favorable to the formation of life....
frequency spectrum. It has better performance than the BNC connector at microwave
Microwave
Microwaves, a subset of radio waves, have wavelengths ranging from as long as one meter to as short as one millimeter, or equivalently, with frequencies between 300 MHz and 300 GHz. This broad definition includes both UHF and EHF , and various sources use different boundaries...
frequencies. Invented in the late 1950s and named after Paul Neill
Paul Neill
Paul Neill was an electrical engineer at Bell Labs in the 1940s and 1950s. He is credited with helping to invent the BNC, TNC and Type N connectors used for microwave and RF communications....
of Bell Labs
Bell Labs
Bell Laboratories is the research and development subsidiary of the French-owned Alcatel-Lucent and previously of the American Telephone & Telegraph Company , half-owned through its Western Electric manufacturing subsidiary.Bell Laboratories operates its...
and Carl Concelman
Carl Concelman
Carl Concelman was the electrical engineer who, while working for Amphenol, invented the C connector and teamed up with Paul Neill of Bell Labs to invent the BNC connector....
of Amphenol
Amphenol
Amphenol Corporation is a major producer of electronic and fiber optic connectors, cable and interconnect systems such as Coaxial cables. Amphenol is a portmanteau from the corporation's original name, American Phenolic Corp....
, the TNC connector has been employed in a wide range of radio and wired applications.
Reverse-polarity TNC
Reverse-polarity TNC (RP-TNC) is a variation of the TNC specification which reverses the polarity of the interface. This is usually achieved by incorporating the female contacts normally found in jacks into the plug, and the male contacts normally found in plugs into the jack. RP-TNC connectors are widely used by Wi-FiWi-Fi
Wi-Fi or Wifi, is a mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point. An access point has a range of about 20...
equipment manufacturers to comply with specific local regulations, e.g. those from the FCC
Federal Communications Commission
The Federal Communications Commission is an independent agency of the United States government, created, Congressional statute , and with the majority of its commissioners appointed by the current President. The FCC works towards six goals in the areas of broadband, competition, the spectrum, the...
, which are designed to prevent consumers from connecting antennas which exhibit gain and therefore breach compliance. This is the case for the popular Cisco line of Wi-Fi products. RP-TNC can also be abbreviated as RTNC
75 Ohm TNC
Most TNC connectors are 50-ohm type even when used with coaxial cableCoaxial cable
Coaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by a tubular conducting shield. The term coaxial comes from the inner conductor and the outer shield sharing the same geometric axis...
of other impedances, but a 75-ohm series is also available, providing a good SWR
Standing wave ratio
In telecommunications, standing wave ratio is the ratio of the amplitude of a partial standing wave at an antinode to the amplitude at an adjacent node , in an electrical transmission line....
to about 1 GHz. These can be recognized by a reduced amount of dielectric
Dielectric
A dielectric is an electrical insulator that can be polarized by an applied electric field. When a dielectric is placed in an electric field, electric charges do not flow through the material, as in a conductor, but only slightly shift from their average equilibrium positions causing dielectric...
in the mating ends. They are intermatable with standard types.
Retail uses
LinksysLinksys
Linksys by Cisco, commonly known as Linksys, is a brand of home and small office networking products now produced by Cisco Systems, though once a separate company founded in 1995 before being acquired by Cisco in 2003...
, a manufacturer of consumer networking equipment, uses RP-TNC connectors for several of its Wi-Fi-certified routers, including the popular WRT54G
WRT54G
The Linksys WRT54G is a Wi-Fi capable residential gateway from Linksys. The device is capable of sharing Internet connections among several computers via 802.3 Ethernet and 802.11b/g wireless data links.-WRT54G:The original WRT54G was first released in December 2002...
.
Telex Communications
Telex Communications
Telex Communications, originally Telex Corporation, was a Burnsville, Minnesota-based manufacturer of hearing aids and audio equipment. Founded in 1936 as a maker of hearing aids, it entered the computer peripherals businesses in the 1960s. It became Telex Communications, a subsidiary of Telex Corp...
, a manufacturer of hearing aids and audio equipment, uses TNC connectors on its Radiocom BTR-800 partyline intercom
Intercom
An intercom , talkback or doorphone is a stand-alone voice communications system for use within a building or small collection of buildings, functioning independently of the public telephone network. Intercoms are generally mounted permanently in buildings and vehicles...
base station for the transmit and receive antennas.
Camplex, a Camera multiplexing unit, uses TNC connectors to send power/tallies/intercom to a camera. The camera sends back audio, video, and intercom.
Icom, a mobile telecommunications equipment manufacturer, uses TNC antenna output terminals in some models intended for the professional VHF PMR market.
Electro-Voice
Electro-Voice
Electro-Voice is a manufacturer of audio equipment, including microphones, amplifiers, and loudspeakers. A subdivision of Telex Communications Inc., Electro-Voice markets its products for use in small or large concert venues, broadcasting, houses of worship, and in retail situations.-History:On...
, a pro audio manufacturer, uses these style connectors on their wireless microphone systems.
See also
- SMA connectorSMA connectorSMA connectors are coaxial RF connectors developed in the 1960s as a minimal connector interface for coaxial cable with a screw type coupling mechanism. The connector has a 50 Ω impedance. It offers excellent electrical performance from DC to 18 GHz.-Connector design:The SMA connector consists of...
, also has RP-SMA version used for Wi-Fi - SMB connectorSMB connectorSMB connectors are coaxial RF connectors developed in the 1960s. SMB connectors are smaller than SMA connectors.They feature a snap-on coupling and are available in either 50 Ω or 75 Ω impedance...
- SMC connectorSMC connectorSMC connectors are coaxial RF connectors developed in the 1960s. They use a #10-32 UNF threaded interface and are available in 50 Ω or 75 Ω impedances...