New Connector Manual

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Connector Manual A collection of commonly used connectors

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Registered Jack (RJ Family) A registered jack (RJ) is a standardized physical network interface — both jack construction and wiring pattern — for connecting telecommunications, or data equipment (commonly, a telephone jack) or computer networking equipment. The standard designs for these connectors and their wiring are named RJ11, RJ45, RJ48, etc

RJ45 (8-Pin)

An 8-position, 8-conductor modular plug that is most often used for data networks such as Ethernet. RJ-45 plugs are physically wider than RJ-11/12 plugs. In network applications, RJ-45 cable assemblies are used to connect from a patch panel to a network switch, and also to connect a computer’s NIC to a data

RJ11 (4-Pin, 6-Pin)

RJ-11 is widely used in the connectivity industry to denote a 6-position, 4-conductor modular plug or jack. The wiring scheme for a single line phone was identified as “RJ11”, and the name stuck to describe the plug used on a phone cord.

RJ12 (6-Pin)

This jack used for voice/data applications: telephone (two-line), networking, and extended-distance peripherals. The RJ-12 connector has 6-position, 6-conductor arranged in a single row.


RJ48 (8-Pin)

RJ-48 is actually the same modular plug as an RJ-45 connector in that it has 8 positions and 8 conductors. However, the term is often used to describe a shielded version of this plug. RJ-48 connections are commonly used for T1 or other “leased-line” applications

MMJ/MMP (6-Pin)

A special version of the 6-position (RJ-11/12) plug. MMJ stands for Modified Modular Jack and MMP stands for Modified Modular Plug it is easily recognized by its locking tab, which is offset from the center of the plug body. MMJ/MMP connections were often found on equipment manufactured by the Digital Equipment Corporation (DEC).


Computer & Telecom Connector These connectors widely used for computer and Telecom equipments. RJ21 / Telco50

This connector is very similar to the 50-pin Centronics interface. The biggest difference is that the RJ21 connector uses screws to anchor into place instead of bail locks. Sometimes, it is called a “Champ” connector or an “Amphenol” connector. RJ21 interfaces are typically used for datacomm trunking applications.

USB Type A

Found on host controllers and hubs, the A-style connector is a flat, rectangular interface. This interface holds the connection in place, and makes it very easy for users to plug and unplug. Instead of pins. The A-socket connector provides a “downstream” connection that is intended for use solely on host controllers and hubs.

USB Type B

The B-style connector is designed for use on USB peripheral devices. The B-style interface is square in shape, and has slightly beveled corners on the top ends of the connector. Like the A connector, it uses the friction of the connector body to stay in place. The B-socket is an “upstream” connector that is only used on peripheral devices.


Mini USB

This is an unofficial connector found on many digital cameras, especially certain Kodak models. It resembles the shape of a standard B-style connector, with beveled corners; however it is much smaller in size.

Firewire 4-Pin

The 4-pin Firewire connector is rectangular in shape, with a small notch or indentation on the bottom edge of the connector shell. A 4-pin connector carries only data, and no power, so it is often found on peripheral devices that have their own power supplies

Firewire 6-Pin

The 6-pin Firewire connector is larger than the 4-pin, and is rectangular-shaped with beveled corners on one end. A 6-pin interface provides DC power in addition to the Firewire data signals. These interfaces are often found on devices that can provide power, such as a computer.

SCSI 68

Used for SCSI-3 applications: scanner, removable storage Drive, Controller, External cdr/cdrw, ultra/2. The Micro DB68 connector has 68-pins arranged in two rows one on top of the other. The top row has 34 pins and the lower row has 34 pins.


Centronics 36

The 36-pin connector is often used for parallel applications, especially for printers. The Centronics 36-pin connector is arranged in two rows of pins, each with 18 contacts. The connector is held in place by bail locks

Centronics 50

Used for SCSI-1 applications: older scanners, controllers, external scsi device cases. The Centronics 50 connector has 50-pins arranged in two rows one on top of the other. The top row has 25 pins and the lower row has 25 pins

V.35 or M34

This is a blocky connector with large pins and sockets, used often for datacomm modem applications. The nickname “Winchester” probably comes from Winchester Electronics, a connector manufacturer based in Connecticut. A V.35 connector has 34 pin positions, and often several of these positions are left unloaded

HSSI Port

The High-Speed Serial Interface (HSSI) is a DTE/DCE interface that was developed by Cisco Systems and T3plus Networking to address the need for high-speed communication over WAN links. The HSSI specification is available to any organization wanting to implement HSSI.


Infiniband Connector

Infiniband is a high-bandwidth I/O communication technology that is typically deployed in data centers, server clusters, and HPC (High Performance Computing) applications. Infiniband cables use a connector based on the Micro GigaCN series developed by Fujitsu. The most common type of connector in use is the “4X”, named because it supports four aggregated data links.

SAS Connector

In computing, the data-transfer technology Serial Attached SCSI (SAS) moves data to and from computer storage devices such as hard drives and tape drives. SAS replaces the parallel SCSI bus technology that first appeared in the mid 1980s in data centers and workstations, and it uses the standard SCSI command set.


DB Connector This is a common connector used in many computer, audio/video, and data applications. The official name is D-subminiature, but many people call it “D-sub” or just “DB”. The connector gets its name from its trapezoidal shape that resembles the letter “D”. Most DB connectors have two or three rows of pins. Common types of D-sub connectors are DB9 and DB25, used on PCs for serial and parallel ports.

DB9

This interface is commonly used for RS-232 serial applications. For several years, DB9 ports were standard equipment on PCs; nowadays, many newer computers are being built without them. On a PC, the serial port is a DB9 male. A DB9 connector has 9 pins arranged in two rows, with one row on top of the other. The top row has 5 pins and the lower row has 4 pins

DB15

This connector can be found on sound cards, older AUI network cards and devices, and on legacy Macintosh monitors. A DB15 has two rows of pins: 8 on the top, and 7 on the bottom. Don't confuse it with the HD15, which has three rows

DB25

DB25 connectors are most often used for parallel, RS-232 serial, or SCSI applications. A PC normally has one DB25 female parallel port. On older PCs, a DB25 serial port could sometimes be found instead of a DB9. DB25 SCSI connections are female, and can be found on older Apple computers as well as on expansion cards for SCSI peripheral devices


HD15

A very common connector used mostly as a video interface for computers and monitors. The HD15 is a High Density DB-style connector, so it can also be called an HD DB15. Another popular name is “VGA connector”, although it is used in video applications that support much higher resolutions (SVGA, XGA, UXGA, etc.). An HD15 connector is the same size as a DB9 connector, but it has three rows of 5 pins. On most HD15 male connectors, there is one pin (pin #9) missing in the middle row

15-Pin AUI

An Attachment Unit Interface (AUI) is a DA-15 (D-subminiature). It has a sliding clip in place of the thumbscrews normally found on a D-connector to hold two connectors together.

DB37

This connector is used sometimes with Cisco networking hardware, and other applications that use RS-449 serial communication. The top row has 19 pins, the bottom row 18.

13W3

This is a special type of D-Sub connector. It contains 10 standard DB-style pins, and 3 coaxial pins. This interface is often used for Sun/SGI workstation video applications. The gender of a 13W3 connector is determined by its 10 DB-style pins, not its coaxial pins (which are opposite in gender). For example, a male 13W3 plug has male DB pins, and female coaxial pins


Fiber Connectors Fiber optic connectors are unique. Fiber cables transmit pulses of light instead of electrical signals, so the terminations must be much more precise. Instead of merely allowing pins to make metal-to-metal contact, fiber optic connectors must align microscopic glass fibers perfectly in order to allow for communication. While there are many different types of fiber connectors, they share similar design characteristics.

LC

One popular SFF connector is the LC type. This interface was developed by Lucent Technologies (hence, Lucent Connector). It uses a push-pull mechanism, similar to the SC, and the connector body resembles the square shape of SC connectors as well. LC connectors are normally held together in a duplex configuration with a plastic clip. The ferrule of an LC connector is 1.25mm.

BNC

BNC connectors are round plugs with a bayonet-style locking system, used on coaxial cables. They are very common in CCTV and surveillance camera applications. There are many popular theories explaining the acronym “BNC”, but the most likely is “Bayonet-Neill-Concelman”, which refers to the two gentlemen that developed it years ago (Paul Neill from Bell Labs, and Carl Concelman from Amphenol

TNC

The TNC (Threaded Neill-Concelman) 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


SC Duplex

SC connectors also use a round 2.5mm ferrule to hold a single fiber. They use a push-on/pull-off mating mechanism which is generally easier to use than the twist-style ST connector when in tight spaces. The connector body of an SC connector is square, and two SC connectors are usually held together with a plastic clip. The abbreviation of SC is Subscriber Connector.

SC Simplex

SC connectors use a round 2.5mm ferrule to hold a single fiber. They use a push-on/pull-off mating mechanism which is generally easier to use than the twist-style ST connector when in tight spaces.

ST

The ST connector was one of the first connector types widely implemented in fiber optic networking applications. Originally developed by AT&T, it stands for Straight Tip connector. ST connections use a 2.5mm ferrule with a round plastic or metal body. The connector stays in place with a “twist-on/twist-off” bayonet-style mechanism.

MTRJ

This is another popular SFF connector. Based on a specification by NTT, it was developed by AMP/Tyco and Corning, and stands for Mechanical Transfer-Registered Jack. The MT-RJ connector closely resembles an RJ-style modular plug, even getting part of its name from the resemblance. MT-RJ connectors are always duplex in that they hold two fibers. The body and ferrule are normally made from plastic or plastic composite, and lock into place with a tab (just like a modular RJ-style plug).


COAX or RF Connector

Coax connectors are essentially any connectors that are used to connect a coaxial cable to another cable or a device that requires a signal carried by the coaxial cable. They come in a variety of shapes and sizes and can be known by quite a few names. Among these, the most common alternative name for coax connector is RF connectors.

F-CONNECTOR

The F-type connector is used on coaxial cable, and is widely used for cable TV, satellite TV, and off-air TV antenna applications. The connector is round with the conductor of the cable itself poking through the center of the connector body. Most F-type connectors are threaded, so that they can be screwed into place.

Twinax

Twinax connectors are used with 78 Ω and 95 Ω conductor cables and operates from 0-200 MHz. Due to the improved shielding characteristic (>30dB), these connectors are used in balanced low level and high sensitivity circuits. Twinax connectors feature keyway polarization to ensure system integrity and prevent signals from being mixed. Ideal for computer network applications.

SMA Connector

SMA is a fiber optic connector developed and manufactured by Amphenol Fiber Optic Products; it stands for Sub Miniature version A. SMA connectors use a threaded plug and socket. It was the first connector for optical fibers to be standardized. The SMA was designated as FOCIS-1 by the TIA.


DIN Connectors

DIN connectors are high frequency, multi-pin, electrical connectors that meet standards established by Deutsches Institut für Normung (DIN), a German national organization for standardization. The ends of DIN connectors are round, notched, and protected by a metal skirt to ensure that pins line up correctly PS/2, Keyboard Connector

This Connector is used for connecting keyboards to a PC, PS/2 compatible computer system.

PS/2, Mouse Connector

This Connector is used for connecting mouse to a PC, PS/2 compatible computer system.

6 Pin miniDIN

This connector is often called PS/2 connectors. This interface was first used on the IBM PS/2 personal computer, and it soon became the industry standard for connecting keyboard & mouse.

8 Pin miniDIN

This connection was commonly used with the serial interface on older Apple computers. Nowadays, it can sometimes be found on portable video devices. The 8-pin Mini-DIN features three rows of pins

5 Pin miniDIN

This connector used for Low-voltage power supply input connector on various pieces of equipment

7 Pin miniDIN

This connector is used on laptops and video cards. A 7-pin socket also accepts an S-Video plug, but not vice-versa. The S-video signals are available on the four matching pins as before. Of the other three pins, one carries a CVBS composite video signal for non S-video displays.


Keyboard Connector (Old Model)

This Connector used for AT-style computer connecting Keyboards to a PC. Nowadays it is replaced by PS/2 connectors.


Audio Video Connector Audio/video devices use a variety of different interfaces. One similarity that most A/V connector types share is their ease of pluggability. Manufacturers of consumer electronics prefer to use simple interfaces that average users can plug and unplug without having to tighten thumbscrews, or release tabs or latches. This preference can prove challenging to manufacturers who must balance convenience with performance

RCA Connectors

The venerable RCA plug gets its name from the RCA Corporation. The RCA connector is a round plug with a central tip and a metal ring, separated by insulating material. The tip has a smooth, domed shape. The shape and design makes the connector extremely easy to plug and unplug into equipment. RCA interfaces are very common on consumer electronics devices, for applications such as composite video, component video, line-level audio, and S/PDIF digital audio.

S-VIDEO

The 4-pin mini-DIN connector is most often used for S-video applications. It has 4 pins arranged in 2 rows, and a keying block to make certain the plug cannot be inserted improperly. Even though an S-video connector has 4 pins, it only carries two signals—luminance and chrominance. The other 2 pins are used for signal ground connections.


XLR

XLR is a type of connector used for many professional audio applications. Originally designed by ITT Cannon, the most common configuration is a 3-pin connector for “balanced” audio signals. XLR widely used for microphones, mixers, amplifiers, and other pro audio devices

DVI-I

This connector appears almost identical to the dual-link DVI-D connector except that it has an additional four pins that surround the flat offset ground bar. This is because the DVI-I interface was designed to carry both digital and analog signals.

DVI-D

The DVI-D connector contains 24 pins arranged in three horizontal rows of eight pins. DVI interfaces in the A/V world are found on HDTVs and on HD sources such as DVRs or satellite receivers.

DVI-A

DVI-A is not an “official” standard according to the DDWG. Nevertheless, it is a connector type that allows a VGA device to connect to a DVI-I interface. For instance, the DVI output on a computer’s video card may be DVI-I and thus capable of supporting both digital and analog signals.


Audio JACKs

These jacks widely used for Audio-In, Audio-Out, Microphone and Headphone Options. These are found in 2.5 and 3.5 mm versions.

SPEAKER Connector (Banana Type)

There are many varieties of speaker terminals. The basic use of a speaker terminal is to connect a simple + and - speaker wire to another cable or to and from an amplifier

SPEAKER Connector (Grip Type)

Speaker grip connector terminals are the most popular kind of speaker terminal, because they can be connected and disconnected simply by toggling them.

Coaxial Digital Jack

This type of jack is used for the digital audio inputs and/or outputs on A/V components such as receivers, CD players, DVD players, and more. Coaxial digital jacks are also sometimes found on higher-end PC soundcards for digital audio input and output.

OPTICALs

A digital optical connection is a fiber-optic connection that is used for transferring digital audio signals (such as PCM, Dolby Digital, and DTS) from a source device, such as CD or DVD player and an AV receiver or Surround Sound Preamp/Processor. This connection is also referred to as a TOSLINK connection


SCART/RGB

SCART (from Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs, Radio and Television Receiver Manufacturers' Association) is a French-originated standard and associated 21-pin connector for connecting audio-visual (AV) equipment together.

MIDI

5-pin DIN connector is used exclusively as MIDI connector. Nowadays USB and 6 pin miniDIN connector used for its place.

HDMI

HDMI stands for High Definition Multimedia Interface. This technology carries the same video information as DVI but adds the capacity for digital audio and control signals as well. The current version of HDMI carries one TMDS link of digital video. Found on many home-theater/consumer electronics devices, HDMI uses a 19-pin connector that is held in place by friction.

S/PDIF

S/PDIF specifies a Data Link Layer protocol and choice of Physical Layer specifications for carrying digital audio signals between devices and stereo components. The name stands for Sony/Philips Digital Interconnect Format (more commonly known as Sony Philips Digital InterFace).


Power Connector These are the some commonly used AC and DC Power Connectors. Power Plug

These are the common AC Power Plugs

Power Socket

These are the common AC Power Sockets

VDC

This is DC Power jacks, widely used in DC Equipments.

RPS Connectors

These connectors used as Redundant Power Supply Connectors.

PowerInlet

These are the two types of PowerInlet

Terminal Block

These terminal blocks used for DC Power as well as Audio Video connections.


NEMA (National Electrical Manufacturers Association) Power Connectors NEMA connectors are connectors used for mains electricity (in North America and other countries) that conform to the standards set by the U.S. National Electrical Manufacturers Association. NEMA wiring devices are made in current ratings from 15 to 60 Amp, and electrical potential (voltage) ratings from 125 to 600 Volts.

Straight-Blade NEMA Connectors

NEMA 5-15P & NEMA 5-15R

15 Amp. 125 Volt, 2-Pole, 3-Wire Grounding Most common household and commercial plug. Uses include Electric Drills, Cloths washers and gas dryers, window Air Conditioners, Refrigerators and Freezers.


20 Amp. 125 Volt, 2-Pole 3-Wire Grounding Uses include old style window Air Conditioners, Large Electric Heaters, certain machines and office Equipment in Commercial Applications.


15 Amp. 250 Volt, 2-Pole, 3-Wire Grounding Household use includes window Air Conditioners, certain machines and office Equipment in commercial Applications.



20 Amp. 250 Volt, 2-Pole 3-Wire Grounding Most common used in many Larger window air conditioners and some large home use air compressors, certain machines and office equipment in commercial applications.

Twisted-Lock NEMA Connectors

NEMA L5-15P & NEMA L5-15R

15 Amp. 125 Volt, 2-Pole, 3-Wire Grounding


20 Amp. 125 Volt, 2-Pole, 3-Wire Grounding Recommended plug and receptacle for above ground pool filter.











20 Amp. 125/ 250 Volt, 3-Pole, 4-Wire Grounding 5000 watt generator plug


30 Amp. 125/250 Volt, 3-Pole, 4-Wire Grounding




IEC (International Electrotechnical Commission) Power Connectors IEC connector is the common name for the set of thirteen line sockets (called the Outlet) and thirteen panel plugs (called the inlet) defined by International Electrotechnical Commission specification IEC 60320 (formerly IEC 320). These equipments can operate on both 120/240 volt, 50/60 Hz mains power. In each case, the matching inlet is designated by the even number one greater than the odd number assigned to the line socket, so a C1 fits a C2, and a C15A fits a C16A. All voltage ratings are 250 V AC. All have maximum temperature ratings of 70 °C unless noted IEC C1 & IEC C2

120-250 Volt, 0.2 Amp, 65°C C1 and C2, 2-conductor 0.2 A, unpolarised. It is commonly used for shavers

IEC C3 & IEC C4

120-250 Volt, 2.5 Amp, 65°C C3 and C4, 2-conductor 2.5 A connector.

IEC C5 & IEC C6

120-250 Volt, 2.5 Amp, 65°C C5 and C6, 3-conductor 2.5 A is sometimes colloquially called "Mickey Mouse" or "Cloverleaf" connector. This connector is seen on the majority of laptop power supplies and portable projectors.

IEC C7 & IEC C8

120-250 Volt, 2.5 Amp, 65°C C7 and C8 connectors, with two pins rated at 2.5 A, exist in both polarised and unpolarised versions. These connectors are often used for small cassette recorders, battery/mains operated radios, some full size AV equipment, laptop computer power supplies, video game consoles, and similar double-insulated appliances.

IEC C9 & IEC C10

120-250 Volt, 6.0 Amp, 65°C C9 and C10, Conductor 6 A (unpolarised) connector.


IEC C11 & IEC C12

120-250 Volt, 10 Amp, 65°C C11 and C12, 2-conductor 10 A connector.

IEC C13 & IEC C14

120-250 Volt, 10-15 Amp, 120°C The C13 and C14, 3-conductor 10 A. Most desktop personal computers use the ten-amp panel-mounting C14 inlet to attach the power cord to the power supply, as do many monitors, printers and other peripherals.

IEC C15 & IEC C16

120-250 Volt, 10-15 Amp, 155°C These are almost identical in form to the C13 and C14 combination, except with a ridge opposite the earth in the C16 socket (preventing a C13 fitting. The temperature rating is 120 degrees Celsius rather than the 70 degrees Celsius of the similar C13/C14 combination. The official designation in Europe for the C15 and C16 connectors is 'hot condition' connectors.

IEC C17 & IEC C18

120-250 Volt, 10-15 Amp, 65°C C17 and C18 is similar to C13 and C14 connectors. However C17 and C18 do not have a third pin for earthing. A C18 inlet will accept a C13 line socket but a C14 inlet will not accept a C17 line socket.

IEC C19 & IEC C20

120-250 Volt, 16-20 Amp, 65°C The C19 and C20 connectors, with pins rated at 16 A, are used for some server room applications where higher currents are required, for instance, on high-power servers, UPSs, PDUs and similar Datacenter equipment. These are commonly used on larger Cisco catalyst switches, larger servers by HP and Sun, and blade enclosures.


IEC C21 & IEC C22

120-250 Volt, 16-20 Amp, 155°C C21 and C22, 3-conductor 16 A (155 °C maximum temperature) connector.

IEC C23 & IEC C24

120-250 Volt, 16-20 Amp, 65°C C23 and C24, 2-conductor 16 A connector.

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