The connector is designed for. Connectors

When building telecommunication networks based on twisted pair cables, many different connectors (sockets, jacks) are used. In order not to get confused and find your way when choosing, it doesn’t hurt to have at least the slightest idea about them.

Jack is an indispensable element of any local network, because it is used to connect active electronic devices. That is why they are used in the process of creating a telephone or computer network, as well as a telephone set. The main characteristic of a connector is its type.

RJ 45 connectors- the most common type, most often used in the construction of local computer networks. This name corresponds to the technical term 8Р4С - a jack equipped with eight contacts (knives) and four latches. Although it is generally accepted that the name RJ45 hides the 8P8C connector, which differs from the previous one in dimensions and physical characteristics (8 knives and 8 latches).

Depending on the version, this type of connector may or may not have a protective shield. The shielded FTP RJ45 jack should only be used with shielded twisted pair cable. Otherwise, it not only loses all meaning, but also becomes unprofitable from an economic point of view. The main difference between an FTP connector and an unshielded connector (UTP) is the presence of a metal braid, which performs the function of removing electromagnetic waves from both the jack itself and the cable.

As for the design, all connectors are almost identical, since they consist of a plastic body, knives and their clamps.

Telephone connectors

Available in three types of modules - RJ11, RJ14, RJ25. There is complete confusion in understanding the markings of these connectors. That is why it is best to make your choice based on the number of knives that each jack contains. In general, the main types of connectors are characterized by the same form factor and purpose (telephone line switching):

• RJ14 (6P4C) - connects a four-wire cable;

• RJ25 (6P6C) - a six-core cable is connected.

Depending on the situation, telephone jacks may use cables with fewer wires and a smaller form factor. These include the RJ9 (4Р4С) module, designed for connecting handsets to the device itself.

BNC connectors

- a type of connector used in video surveillance systems to connect a coaxial cable (an electrical cable that includes a coaxially located central conductor and a screen). It is considered the most reliable, even though it was created more than sixty years ago.

Special crimping of the BNC connector requires certain costs, but such costs are recouped due to the high reliability and durability of this type of jack. Most of the failures during the operation of a video surveillance camera are caused by poor-quality cable connections. BNC connectors ensure proper connection of coaxial cable, which prevents losses that may occur during signal transmission.

There are a huge number of BNC connectors available today. Plugs, or as they are also called “male connections,” are especially popular. Female connectors (female connections) are no less popular. The wide range of these products includes corner adapters and BNC terminations. Connectors trimmed with precious metals (silver or gold) are also in demand, because this design significantly reduces resistance and prevents oxidation.

One of the most popular and in demand types of connectors is the BNC connector. It is used in various video and audio equipment, where transmission is carried out via radio frequency cable. This connector has its own frequency and voltage limits, which are 3 GHz and cannot exceed 500 Watts, respectively.

This type of connector is mainly used in analog and digital video interfaces for signal transmission, in avionics, test equipment, and radio equipment (antennas, radio transmitters, etc.). This type of connector is mainly used for installation in commercial and industrial equipment. Used to build Ethernet networks of the 10BASE2 standard. The BNC connector has several analogues that are superior to it in certain properties, these are the TNC connector and the BNC-T.

TNC and BNC-T connector

The TNC connector, unlike the BNC, is used for stable operation at higher frequencies. Used in the same areas. The BNC-T connector, in turn, is designed to connect three cables, mainly with coaxial RF connectors. Very often it is done in such a way that two cables are connected to this connector, and a terminator is connected to the remaining input. In the 10BASE2 standard, this type of connector is used to connect a coaxial cable to a network card installed on a personal computer.

RJ-45 connector

The RJ-45 connector is the most commonly used type today. It is usually used when using twisted pair cable. For example, it is used when laying cable television or the Internet. Basically, a six-way connector is used, that is, a combination of several wires is used (white/green, white/orange, blue/white, white/blue, orange/white, green/white). As for television, in this case a quadruple wiring will be used (white/orange, orange, green, white/green).

RCA connector

Another type of connector is RCA (“tulip”). This type of connector used to be used everywhere, although today it has almost gone out of fashion. This standard is widely used in audio and video technology. The standard plug is a central metal connector that protrudes slightly forward and has a diameter of 3.2 millimeters. The RCA jack is a regular panel connector that fits on the bezel and has a diameter of up to 8.0 millimeters.

CONNECTOR

CONNECTOR

1) inf. a symbol in block diagrams that is used to merge several lines into one, split one line with reference to its continuation in another section of the block diagram; 2) linguistic same as CONNECTIVE. English connect.

Dictionary of foreign words. - Komlev N.G., 2006 .

See what "CONNECTOR" is in other dictionaries:

- (in unofficial Microsoft Exchange Server terminology) a configured connection between mail servers in different routing groups or mail systems. Connectors differ by type: The SMTP connector is one of the most common... ... Wikipedia

connector- A part designed to connect two or more components of a breathing circuit. [GOST R 52423 2005] Inhalation topics. anesthesia, art. ventilator light EN connector DE Verbindungsstück FR raccord …

connector- connector, and... Russian spelling dictionary

A connector (in informal Microsoft Exchange Server terminology) is a configured connection between mail servers in different routing groups or mail systems. Connectors differ by type: The SMTP connector is one of... ... Wikipedia

medical gas specific connector- connector The male part of a connection specific to a particular medical gas. [GOST R 52423 2005] Inhalation topics. anesthesia, art. ventilator lung Synonyms connector EN gas specific connector DE gasartspezifisches... ... Technical Translator's Guide

tracheal tube connector- A connector designed to connect the tracheal tube to the device. [GOST R 52423 2005] Inhalation topics. anesthesia, art. ventilator lungs EN tracheal tube connector DE Verbindungsstück für Trachealtuben FR raccord de sonde trachéale … Technical Translator's Guide

connector (in optical communication lines)- connector A mechanical device used in conjunction with a fiber to provide positioning, connecting the fiber to a transmitter, receiver, or other fiber. The following types of connectors are commonly used: SC (SC Subscriber Connector... Technical Translator's Guide

CONNECTOR (NEURON)- A neuron that is located between two other neurons or between a receptor and an effector and connects them. Also called interneuron... Explanatory dictionary of psychology

T connector in BNC format. T connector, tee is one of the types of connectors designed to connect three cables (or two cables with an instrument connector). The most widely used are T connectors for connecting to coaxial... ... Wikipedia

This term has other meanings, see BNC. BNC connector on a thin coaxial cable The BNC connector (BNC is short for Bayonet Neill Concelman) is used to connect a coaxial cable with a characteristic impedance of 50 or 75 Ohms and ... ... Wikipedia

It is sometimes difficult for novice needlewomen to understand the complex terminology that is used in almost all master classes on making jewelry. Because of this, even a strong desire to get a personally created piece of jewelry into your collection is dashed against the rock of misunderstanding. If you intend to master this knowledge, we suggest that you first get acquainted with one of the elements for creating jewelry - connectors.

As the name suggests, connectors are “unifiers.” They are most often used in bracelets, necklaces, beads and earrings. The simplest distinguishing feature of the connector is the ears. Due to the fact that they combine different elements, the minimum number of lugs is 2 pieces, and they must be located at opposite ends of the element. If there is only one ear, it is a pendant. There is no upper limit on the number of ears for connectors. Whatever shape this element has, the ears will help you recognize it at first sight.

In addition to the ears, the connectors may also have holes, which are not always noticeable at first glance. For example, the “infinity” element is also a connector.

What, where and why?
These metal products can come in a wide variety of shapes and perform several functions at the same time.

1. Combining multi-level elements.
An example of such an application can be seen on this bracelet. The connector maintains the division of the stone beads into three rows, but at the same time combines them into a single whole. Despite the fact that this element does not have ears and uses holes for fastening, it is definitely a connector.
2. Giving the product completeness.

Notice how just three connectors turned ordinary beads into an exquisite, romantic piece of jewelry.
3. Giving the decoration a certain style.

When you want to create, for example, ethnic or gothic decoration, it is not always possible to use the ideal fittings and materials. But, using the right connectors, you can make beads or a bracelet of the desired style even from completely neutral materials.
4. Centerpiece

For example, these necklaces would be boring if they didn't use master center connectors. Metal fittings helped to revive the product and highlight the beauty of the main material.

Connectors can not only set off other materials, but also serve as the basis of the product and even be grouped into interesting decorations on their own.
For example, the basis of these earrings is a heart connector. Using oval or round connectors, the same technology can be used to make luxurious earrings in the Arabic style. And using smaller beads - delicate and airy pendants.

There are many more functions of connectors, but their main task is to make your jewelry really beautiful.

What types of connectors are there?

Having looked at the range of products on our website, it is easy to see how diverse these products are. There is no doubt that if you want, you can always recognize the connector. Now let's decide on their classification and selection.

So, based on color, connectors are divided into four main categories: silver (dark and light), gold, copper and antique bronze. The color does not always match the material, so the composition needs to be clarified. As for the selection, do not forget - all metal fittings must be the same color. Therefore, if you have already decided to use a copper lock, you should not select silver dividers.
If the fittings are selected from scratch, be guided by the color of the base material. Gold and bronze are suitable for warm colors, and silver for cold colors.

We have blanks for connectors on sale that will allow you to create truly exclusive elements. Connectors with platforms (settings) allow you to fill them with jewelry epoxy, or place a molded element made of polymer clay there. Dac connectors (rims with horns) will help you securely fasten your chosen Swarovski or other crystals.
Check out our connectors page for some of our most inspiring items. We will help you create beauty with ease.

Disassembled tee. The pins of its plug are visible, to which plates are attached, forming brackets into which the pins of electrical appliances fit

Electrical connector (connector) - an electrical device designed for mechanical connection and disconnection of electrical circuits. Usually consists of two or more parts: forks(that part of the connector from which the pins (pin contacts) protrude) and the corresponding sockets(that part of the connector in which the recesses for the pins (female contacts) are located).

GOST IEC 60050-151-2014, introduced as a national standard of the Russian Federation on October 1, 2015 by order of the Federal Agency for Technical Regulation and Metrology dated November 24, 2014 No. 1741-st, gives a different definition of socket and plug.

Plug socket- a connector attached to a device or to a structural element or the like. Note—The contact elements of a receptacle may be socket contacts, pin contacts, or both. It is called a rosette by analogy with a round decorative element mounted on a wall or ceiling. The decor itself got its name from the word “rose”. Later, any similar device, not necessarily electrical, began to be called a socket.

Plug- a connector attached to a cable.

In professional activities and in everyday life they often say “ connector», « plug"(from German stecker). Sometimes a plug and socket are called respectively by the words “ dad" And " Mother"(English) "male" and "female" respectively), especially if both parts of the connector are not fixed to the mounting surface, however, these names are not officially recognized terms (that is, such word usage is non-normative), but are often used by electronics engineers.

Device [ | ]

An electrical connection is made by creating electrical contact between conductors. The number of contacts is determined by the purpose of the connector and can range from one to several thousand. Structurally, an electrical connector usually consists of two parts: a male (plug) and a female (socket). Each part, in turn, usually consists of a housing and an insulator with contact parts.

The connector body can be dismountable or non-demountable; Cases are made of plastic, rubber, ceramics, metal and other materials. An insulator is a part of a plug or socket located inside the housing and intended for mechanical fastening of contact parts and electrical isolation of them from each other. Made from plastic or ceramic. In non-removable housing parts of the connector, there is usually no insulator.

Contact part - a part that comes into contact with another when connecting parts of an electrical connector to form an electrical contact. Made from a metal with good electrical conductivity (aluminum or copper alloys) and often coated with precious metals (silver, gold, platinum) to prevent oxidation. The part of the contact part to which the metal conductors of a wire or cable are connected is called shank electrical connector. According to the method of connection to the wire cores, shanks for soldering, welding, crimping and wrapping are distinguished. For fastening to the casing or body of the electrical connector, a part called screen clip.

Cable clamp- a detail on the mounting side of the connector part that protects the shanks of the electrical connector from mechanical forces. In connectors used on fixed devices and units, the cable can be inserted into the connector body through a round hole. The cable of the connector installed on the moving parts of devices and units may be subject to bending and tension, which can lead to damage to the cable cores at the point of connection to the contact parts or damage to the shanks themselves. To prevent this from happening, the connectors are equipped with a special cable clamp, or a strain and torsion protection device, or both at the same time. The connector, designed for operation in dusty and humid environments, is additionally equipped with a seal (gasket) and a plug - a part designed to protect the contact parts and insulator from mechanical and climatic influences.

To eliminate the possibility of an erroneous connection, most connectors are made with orienting elements, often called “keys” in professional jargon.

Orienting element- these are guides in the form of different protrusions and grooves that ensure the mutual orientation of the parts of the electrical connector during articulation. Orienting elements are designed, as a rule, to ensure that each contact of one part of the connector is connected to its intended mating contact of the other when mated.

The connector is, as a rule, a paired device: the “male” part (eng. male plug; according to GOST - male part) contains pin contacts (pins); “mother” (eng. female plug; according to GOST - socket part) contains socket contacts. Pin and socket contacts that touch to form an electrical contact are collectively called contact parts. The pin contact part is intended for insertion into the socket and electrical contact with it along its outer working surface, and the socket part - with the pin along its inner working surface. The socket contact part usually consists of one or two spring plates. When the connector is mated, the pin touches the plates, which, bending, cover it, ensuring constant electrical contact.

There are also connectors that contain both male and female contacts in one part. In Russian-language technical and reference literature, such connectors are called electrical connector hybrids. In English-language literature, such connectors are called hermaphroditic (English hermaphroditic) or genderless (English genderless, sexless).

Connectors in which there are no contact pins and, accordingly, contacts enclosing them, are widespread. Instead of pins, contact pads are used, which look identical on both sides of the connector (for example, on a USB connector or on Intel processors of the Core family).

In Soviet technical literature, a classification based on the “socket-socket-plug” feature was clearly accepted, with possible additional clarification of the type and contacts themselves, “male” or “female”.

Thus, taking into account both of these classifications, four groups of connectors are obtained:

• part located on the main (fixed) part of the device:

• "mother" nest;
• "dad" nest;

• part located on the moving part (cable):

• female plug;
• male plug.

Classification [ | ]

Depending on the area of ​​use and type of equipment, connectors are classified according to:

General characteristics:

According to the classification and materials used in sockets, there are brass and bronze. The most common are brass in internal composition. Sockets are available in versions for hidden installation (built-in) and open (surface).

Today, a huge number of types of connectors (connectors) are used. Here are just some of their common types:

• IEC connectors used to connect power up to 250 volts according to the IEC 60320 specification (formerly IEC 320): C13/C14, C15/C16, C19/C20 and others;
• BNC connectors - connectors with bayonet fixation, used to connect a coaxial cable with a diameter of up to 8 mm;
• TRS/TRRS or “jack” connectors (“jack”, “mini-jack” and “micro-jack”) - connectors with a diameter of 6.35 (1/4″), 3.5 or 2.5 mm. Application:
• RCA connectors (in common parlance - “tulips”), used for connecting household audio and video equipment;
• XLR connectors used for connecting professional audio, video and lighting equipment;
• SCART connectors used for connecting video equipment (transfer of commands and analog and digital data between TVs and video sources such as players: VCR, DVD player);
• connectors (“registered jack”) - small-sized rectangular plastic connectors used to connect telecommunications equipment;
• D-sub connectors - several compact connectors used for transmitting low-current signals;
• - connectors developed by Centronics and used in the following interfaces:

Power sockets [ | ]

Chain of various plugs

Type F socket (Schuko)

They have, depending on the type, from two to five holes in which live contacts are located. Special purpose sockets may have a larger number of contacts.

Power sockets are available for both three-phase and three-phase networks, with different degrees of protection, also with different mechanisms of protection against accidental entry (“child protection”). Also used in portable extension cords and splitters.

Most 220/380 V power sockets use the elasticity of a strip of low-elastic contact metal, usually brass, to make contact, while cheap sockets are made of steel (i.e. flat spring). Low elasticity of the material and high bending loads in a flat spring (see Hooke's law) with frequent switching on/off lead over time to the fact that the flat spring loses its elasticity, the contact becomes worse, which leads to excessive heating, or the contact disappears completely and the socket stops working function. More reliable sockets in which an elastic helical spring, through a pressure plate, presses the plug pin to the contact plate of the socket, or the contacts are additionally reinforced with a spring.

Sockets with a ceramic base are considered less fire hazardous than plastic ones. Currently, the vast majority of thermoplastics, such as PC (polycarbonate), are used as a base, which are resistant to high temperatures and do not support combustion.

Types ("Soviet") and ("Euro") are common in Russia. At the same time, type C is permissible only in residential buildings, and in new buildings, only type F sockets should be installed, and those installed should gradually change to type F.

According to the type of wiring, sockets are either open (for open wiring; also called surface-mounted) or closed (for hidden wiring; also called recessed).

According to the degree of dust and moisture protection:

In addition, sockets have a number of parameters: maximum current, maximum voltage, reliability, etc. Almost all sockets of a regular household single-phase network with a voltage of 220 V are produced with a reserve of up to 250 V.

Electrical sockets are often equipped with protective devices: curtains (on the inside, they open only when both curtains are pressed simultaneously, and advertising claims that a child will not be able to insert one nail) and covers (on the outside, they protect the socket from external influences).

Signal (information) sockets[ | ]

VPV-1 plug with RPV-1 socket for subscriber radio station

Telephone sockets[ | ]

Low-current sockets for connecting the cable of wired and wireless telephones to the telephone network. The mating part of the socket is a plug designed for terminating a cable (mounting a connector on the end of a cable). There are several standards:

RJ-11 socket



RJ standard plugs



TAE standard plug