With the rapid development of the 5G era, the demand for bandwidth has also increased both in the home and industrial security fields.
As one of the most basic components of optical network cabling, fiber optic patch cords have become more and more widely used.
However, when it comes to fiber optic patch cords, laymen may have hardly heard of them, let alone know more details.
1. What is a fiber optic patch cord? What is its use?
Fiber optic patch cords refer to optical cables with connector plugs at both ends, which are used to achieve active connections in the optical path, such as connecting a fiber optic terminal box with a fiber optic transceiver/connecting an optical module, and connecting optical devices with optical devices. (PS: Fiber optic patch cords ≠ fiber pigtails. The former has plugs at both ends; the latter has a plug at one end.)
The cable body is mainly composed of a fiber core, a cladding, a coating layer, and a PVC outer sheath. Among them, the fiber core is usually a double-layer concentric cylinder with a small cross-sectional area made of quartz glass, which is brittle and easy to break. It is located in a protective coating and covered by a PVC outer sleeve. As the weakest link in the fiber optic network infrastructure, the quality of the fiber optic patch cord directly affects the performance of the fiber optic network.
2. What are the categories of fiber optic connectors?
Fiber optic connectors, commonly known as "fiber optic connectors", are physical interfaces used to connect fiber optic cables. The following are the common types:
1. SC fiber optic connector: It is a large square connector with a rectangular sleeve on the outside, which is fastened by a plug-in latch without rotation. This type of connector is easy to plug and unplug, has small insertion loss fluctuations, high compressive strength, and high installation density. It is a fiber optic connector that can be installed in duplex, triplex, or quadruplex.
SC fiber optic connector
2. FC fiber optic connector: It is a circular spiral mouth with a metal sleeve on the outside, which is fixed with a screw buckle. This type of connector has a simple structure, is easy to operate, and is easy to make, but the fiber end face is more sensitive to dust, and is prone to Fresnel reflection, making it difficult to improve the return loss performance.
3. LC fiber connector: A small square connector made of modular jack (RJ) latch mechanism. The diameter of the pin and sleeve used is 1.25mm, which is half the size of ordinary SC, FC, etc. It can increase the density of fiber connectors in fiber distribution frames. It is a simplex SFF connector, but can be converted into a duplex connector by using a clip.
4. ST fiber connector: It adopts a metal circular bayonet structure. After insertion, it can be fixed with a bayonet after half a circle. This type of connector is easy and quick to install, but requires a large space on the panel and is often used in fiber distribution frames.
3. What are the categories of fiber optic patch cords?
1. According to the different fiber optic connectors, common fiber optic patch cords can be divided into: FC-FC, FC-ST, SC-SC, SC-ST, ST-ST, etc.
2. According to the different types of fiber optic modules, fiber optic patch cords can be divided into single-mode and multi-mode. Among them, single-mode fiber optic patch cords generally have yellow body, blue connectors and protective sleeves, and longer transmission distances; multi-mode fiber optic patch cords generally have orange or gray body, beige or black connectors and protective sleeves, and shorter transmission distances.
When building fiber optic network infrastructure, good fiber optic patch cords can not only reduce the operating costs of the entire fiber optic network, but also increase the reliability and flexibility of network operation and maintenance. Therefore, when purchasing fiber optic patch cords, in addition to paying attention to product materials, we must also pay special attention to product craftsmanship.
Finally, Xiaoyou tells you a good news. Youyuejia has recently launched a variety of new fiber optic patch cord products, including single-mode single-core, multi-mode 10G and other options. These new products are selected from well-known brand fiber cores, with precise optical power transmission and extremely low loss. In addition, the multiple protective layer design strongly protects the fiber core from water vapor erosion and mechanical wear, thereby extending the service life.