As one of the most basic components of optical network cabling, optical fiber patch cords are widely used in the construction of optical fiber links. Nowadays, optical fiber manufacturers have launched many types of optical fiber patch cords according to different application scenarios, such as MPO/LC/SC/FC/ST optical fiber patch cords, simplex/duplex optical fiber patch cords, single-mode/multimode optical fiber patch cords, etc. They have their own characteristics and cannot be replaced. This article will give you a detailed introduction to different types of optical fiber jumpers for easy selection and wiring

Divide the types of optical fiber jumpers according to the types of optical fiber connectors

According to different optical fiber connectors, optical fiber jumpers can be classified as MPO/MTP/LC/SC/FC/ST/MTRJ/MU/E2000/DIN optical fiber jumpers. Although these different types of fiber patch cords have similar components (composed of connectors and optical cables) and the same functions, their different characteristics and performance lead to different application scenarios

LC optical fiber jumper

LC optical fiber jumper is one of the most commonly used optical fiber jumpers in optical networks. Because it uses a LC connector with a diameter of 1.25 mm and is small in size, it is very suitable for high-density cabling, so it is widely used in computer rooms and data centers. It is divided into LC simplex optical fiber patch cord and LC duplex optical fiber patch cord according to the different working modes of the interface

SC optical fiber jumper

The SC optical fiber jumper uses the SC connector with a diameter ferrule of 2.5mm, which is twice the size of the LC connector, so it is also called the large square head connector (large square head optical fiber jumper). The optical fiber patch cord adopts a push-pull structure, plug and play, and has excellent performance. It is very suitable for telecommunications and data network systems, including point-to-point passive optical networks

MPO/MTP optical fiber jumper

MPO/MTP optical fiber patch cord is one of the common optical fiber patch cords in high-speed data communication systems, such as 40G/100G direct connection and interconnection. MPO/MTP optical fiber patch cord is a kind of optical fiber patch cord with multi-core optical fiber connector, which can accommodate 6~144 optical fibers, and is the largest optical fiber patch cord at present. MPO/MTP optical fiber patch cord is composed of optical fiber, sheath, coupling assembly, metal ring, pin (pin), dust cap, etc., among which, due to the difference in the number of optical fiber cores and the location of pins, it is divided into polarity A/polarity B/polarity C male/female optical fiber patch cord. Due to the difference in the types and applications, it is necessary to select the appropriate MPO/MTP optical fiber patch cord according to the actual link conditions

FC fiber patch cord

FC optical fiber patch cord is the first optical fiber patch cord using ceramic plug connector. Unlike LC optical fiber patch cord and SC optical fiber patch cord, its connector is a circular spiral connector made of nickel plated or stainless steel, which needs to be fixed to the adapter or socket with a screw clip. Although the installation of FC optical fiber jumper is complex, it is still a common optical fiber jumper for connecting optical time domain reflectors. At first, FC fiber patch cords were also used in telecommunications and data network systems, but with the introduction of LC fiber patch cords and SC fiber patch cords, they gradually withdrew from the market

ST optical fiber jumper

ST optical fiber patch cord is made by AT& T R&D and manufacturing of optical fiber jumper. ST optical fiber jumper adopts a bayonet connector with a spring-loaded ceramic ferrule (2.5 mm in diameter), and its insertion loss is about 0.25 dB. It can be used in long-distance and short-distance applications, such as campus network, enterprise network and military applications. However, in recent years, the market share of ST optical fiber patch cords and FC optical fiber patch cords is gradually declining