Optical fiber splice, which connects two optical fibers permanently or detachably, and has a splice part for protecting the components. The optical fiber splice is the end device of the optical fiber. The optical fiber connector is a physical interface used to connect an optical fiber cable. FC is the abbreviation of Ferrule Connector. The external reinforcement method is a metal sleeve and the fastening method is a turnbuckle. The ST connector is usually used for 10Base-F, and the SC connector is usually used for 100Base-FX.
Common optical fiber connectors: FC connector FC is one of the most common connection devices in single-mode networks. It also uses a 2.5 mm ferrule, but some of the early FC connectors are designed with ceramics built into the stainless steel ferrule. FC has been replaced by SC and LC connectors in most applications. FC is the abbreviation of Ferrule Connector, indicating that the external reinforcement is a metal sleeve, and the fastening method is a turnbuckle. The round threaded connector is a metal connector, and the metal connector can be plugged in more times than plastic. Generally used in telecommunications networks, there is a screw cap screwed to the adapter Advantages: Reliable and dustproof. Disadvantage: Slightly longer installation time.
SC connector SC also has a 2.5mm ferrule. Unlike ST/FC, it is a pluggable device and is widely used because of its excellent performance. It is a connector standardized by TIA-568-A, but it was not widely used in the early stage due to its high price (twice the price of ST). SC is referred to "Square Connector", because the shape of SC is always square. The shell is rectangular, and the structure size of the pin and coupling sleeve is exactly the same as that of the FC type. Among them, the end face of the pin mostly adopts the PC or APC grinding method; the fastening method is the plug-in bolt type, without rotation. Advantages: Standard square connector, direct plugging and unplugging, easy to use. Using engineering plastics, high temperature resistance, not easy to oxidize. Disadvantages: The connector is easy to fall out.
ST connector ST connector perhaps the most common connection device in multi-mode networks (such as in most buildings or campus networks). It has a bayonet mount and a 2.5 mm long cylindrical ceramic (common) or polymer ferrule to hold the entire optical fiber. ST is the abbreviation of "Stab & Twist", which is a vivid description. First insert, then tighten! Translated as "card set" The shell is round and the fixing method is a turnbuckle. Disadvantages: After the connector is inserted, there is a bayonet to fix it half a circle of rotation, which is easy to break.
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