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Fiber optic cable connectors, or so-called fiber connectors, are often used for situations where a connection feature is required. Fiber optic cable connectors are used in many configurations and greatly simplify fiber optic cable installation and maintenance. A variety of fiber optic connector types have been developed. It is based on time testing to become an industry standard. How many types or types of fiber connectors do you know or use?
What are the differences between single mode fiber connector and multimode fiber connector? We will explain the details in the following sections.
First of all, let's explain Fiber Connector Types;
General information about fiber optic connectors
In the current fiber connector market, there are a total of close to 100 types of fiber optic cable connectors. The most commonly used fiber connector types include LC, SC, MU, ST, FC, MTRJ, NID, E2000 and MTP / MPO connectors. However, regardless of the types of fiber connectors, they have the same function and similar basic components: the ferrule, the connector body and the coupling device. These fiber connectors are widely used to terminate optical fibers such as fiber optic pigtails.
Now let's tell you about five common optical cable connectors;
LC Fiber Connector (Lucent connector)
The LC fiber optic connector developed by Lucent Technologies has become the ubiquitous fiber connector for today's optical telecom applications, especially for connections with SFP and SFP + fiber transceivers. As a popular SFF (small form factor) connector, the LC fiber connector has a 1.25 mm ferrule, making it perfect for high-density cabling. Single mode LC fiber connector and multimode LC fiber connector. Depending on the connector structure, the LC connector can also be divided into LC duplex and simplex connector.
Difference between LC connector and SC fiber connector; SC fiber connectors use a round 2.5mm ring to hold a single-mode fiber (SMF). It is also different in appearance from LC because it has a “square-shaped bağlayıcı connector body, the source of the name“ square connector ”. Due to its excellent performance, the fiber optic SC connector is the second most widely used connector for polarization protection applications. The SC fiber connector is used in many areas and is ideal for data, ip camera fiber transmissions and telecom applications, including the most point-to-point and passive optical network.
The ST fiber connector is manufactured and patented by AT&T, a global giant in the industry. It has still remained one of the most popular connectors. It has an insertion loss of approximately 0.25dB and holds the fiber with a 2.5mm spring loaded ceramic, spring loaded in place with a half-twisted bayonet assembly. The ST fiber Connector is generally used in campus and multimode fiber applications, both long and short distance applications such as corporate networking environments and military applications.
One of the biggest features of the ST connector is its robustness due to its structure. The price may stay much higher than in some brands.
The FC fiber cable connector is the first fiber optic connector to use a ceramic ferrule. However, unlike the plastic body SC and LC connector, it is still more robust because a round-screw fitting made of nickel-plated or stainless steel is used. The end face of the FC fiber connector relies on an alignment wrench for proper placement and is then compressed into the adapter / jack using a threaded set. You can simulate this to the old type BNC connector. In terms of cost, despite the additional complexity in manufacturing and installation, the FC connector is still the preferred connector for single-mode fiber as well as precision measuring equipment such as OTDRs.
This is often used in more professional areas. SC and LC are still preferred in small and medium sized enterprises.
MPO / MTP Fiber Connectors
The MPO / MTP fiber cable connector is a connector for multi-fiber solutions that connect fibers between 12 and 24 fibers in a single rectangular ring. We do not see these connectors, which are commonly used in 40G and 100G optical parallel connections. Compared to the other fiber connectors mentioned above, MPO / MTP fiber connectors are more complex, complete and not preferred by all fiber companies. Because in itself; Key and key down, male and female MPO / MTP connectors are available. Confusing problem - MPO fiber connector etc. You can get more details about MTP fiber connector by contacting MSK Global Elektronik.
What are Simplex and Duplex Fiber Connectors? What does it mean? What are the differences?
Simplex one-way connection means that signals are sent in one direction.
For example, a signal is transmitted from two simplex connectors and from device A to device B via a unidirectional fiber cable. Device B cannot return to device A in the same way. But
revision transmission can be achieved with duplex connectors and duplex fiber cable called duplex connection.
In addition, while the single-fiber fiber connector is usually connected with a glass or plastic fiber wire, the duplex fiber connector must be connected with two-fiber fiber. In the picture below you can see the comparison of the LC duplex connector and the SC duplex connector.