Fiber pigtail basic parameters
The pigtail is also called the tail wire. Only one end has a connector, and the other end is a broken end of a fiber optic cable core. It is connected to the core of other fiber optic cables by welding. It is often found in the fiber terminal box for connecting and receiving optical cables and optical fibers.
One end of the pigtail has a fiber optic connector, the other end is a broken end of the fiber optic cable core, one end of the fiber optic connector is used to connect the device, and the broken end of the fiber optic cable core is connected with other fiber optic cable cores to achieve the minimum insertion loss.
Classification of pigtails
The pigtails are divided into single-mode pigtails and multi-mode pigtails, which can be distinguished by color, wavelength, and transmission distance.The outer sheath of the multimode pigtail is orange in color, has a wavelength of 850 nm, and has a transmission distance of 500 m for short-distance connection. The outer sheath of the single-mode pigtail is yellow in color, with a wavelength of 1310 m or 1550 m, and its transmission. The distance is longer, up to 10km or 40km.In the note of many pigtail connectors, you can see the words "FC/PC", SC/PC", the letters in front of "/" indicate the type of pigtail connector, and the letters at the back indicate the pigtail connector. The way of grinding.
FC type connector: FC type pigtail connector, also known as round type threaded joint, made of metal material. Metal joints can be inserted and removed more times than ordinary joints, and are often used on patch panels.
SC type connector: SC type pigtail connector has a rectangular outer casing, wherein the pins of the butt end face are mostly made of PC or APC type, and the fixing method is plug and pull type, and the material used for such connector is engineering plastic. Therefore, the price is cheap, and it has the advantages of high temperature resistance, convenient operation, small fluctuation of loss, and difficulty in oxidation.
LC type connector: LC type pigtail connector is made of easy-to-use modular jack (RJ) latching principle. The size of the pin and sleeve is the size of ordinary SC and FC pigtail connectors. Half, this can greatly improve the space utilization of the fiber distribution frame.
ST type connector: For 10Base-F connection, the connector is usually ST type, for 100Base-FX, the connector is SC type in most cases. The core of the ST type connector is exposed, while the core of the SC type connector is inside the connector, and the ST type pigtail is usually used for the wiring device end, such as a fiber distribution frame, a fiber optic module, and the like.