There are many fiber optic connectors on the market that are actively being used in fiber optic installations, so there are also older types and discontinued fiber optic connectors that are not used in the major data and telecom markets, but in the more specialized used in applications.
In addition to mainstream connectors, there are many variants of the end face geometry, such as end faces for specific applications.
The most commonly used fiber optic connectors today are:
LC, SC, MT/MPO and FC, while older types such as SMA, ST, D4, Escon, Biconic, VF45 and MTRJ are still used in special applications and older installed fiber optic bases.
illustrate
lc fiber optic connector
LC Fiber Optic Connectors are high density connectors for fiber optic applications in public and private networks. This high-performance connector is available in singlemode and multimode.
SC fiber optic connectors, also known as user connectors, are a push/pull connector type and are considered the preferred fiber optic connector standard. It comes in single-sided, double-sided, mixed or hardened styles. The SC (Subscriber Carrier) fiber optic connector is one of three ANSI/TIA/EIA 568-B.3 approved connectors (the other two are ST and SFF). The main advantage of SC connectors is polarization because the connectors can mate and lock.
MT/MPO fiber optic connectors are USConec's multi-channel (4 to 72) connectors (MPO is the universal version).
FC fiber optic connectors are mainly used for the connector type of single-mode fiber. It provides precise alignment with respect to the emitter and detector. After installation, the threaded socket and locating slot allow the position to be held with absolute accuracy.
fc fiber optic connector
SMA Fiber Optic Connector (Subminiature A): 50 ohm - Subminiature coaxial connector with screw-type coupling mechanism. Frequency range DC-18 GHz.
ST fiber optic connectors are similar to the BNC connectors used by spring fibers, the type of connector used on fiber optic cables that utilize a spring-loaded twist-lock connection.
The D4 fiber optic connector is made with a 2.5mm diameter ceramic (zirconia) ferrule for durability and is an older generation connector that is keyed and spring loaded and has a 2mm diameter of the gasket.
ESCON Fiber Optic Connectors (Enterprise Systems Connections) are data connections created by IBM and typically used to connect their mainframes to peripherals such as disk storage and tape drives. ESCON is an optical half-duplex serial interface. …ESCON was introduced by IBM in the early 1990s.
Biconic connectors are phenolic threaded, threaded, spring loaded, keyless connectors with tapered alignment areas.
The VF45 is a duplex fiber optic connector primarily used in fiber-to-desktop LAN applications.
mtrj fiber optic connector
MTRJ fiber optic connectors are very popular in small devices due to their small size. The MTRJ holds two fibers and mates with locating pins on the plug, from the MT connector, which can contain up to 12 fibers.
Fiber Optic Connectors in Europe and Japan
European and Japanese connectors are more widely used in specific parts of the world outside of Europe and Japan. These are DIN, E2000 and MU connectors.
A DIN fiber optic connector is an electrical connector that was originally standardized by the German national standards organization Deutsche Institut für Normung (DIN) in the early 1970s. Some DIN connector standards are: DIN 41524 for circular connectors typically used for audio signals.
The E2000 fiber optic connector looks like a micro SC connector. The connector is easy to install and its push-pull latch mechanism clicks when fully inserted. It has a spring-loaded shutter that fully protects the ferrule from dust and scratches.
The MU fiber optic connector is a small SC that looks like a miniature SC with a 1.25 mm ferrule. It is a popular connector type in Japan.
Fiber Contact
Similar to the installation/handling of standard connectors, fiber optic contacts are widely used in "multi-contact hybrid circular connectors", which contain 2 to 12 fiber optic contacts as well as electrical contacts. Examples are Luxcis 801, Mil 29504, and other commodities under various names and applications such as:
broadcasting
oil and gas
Defense/Military
Commercial and Civil Aviation
medical
industry
The above is a detailed explanation of fiber optic connectors.
