Fiber optic connectors are available in a variety of formats depending on the cable type and connection style. The below guide explores the connectors commonly used in audio-visual, networking, broadcast and other low-voltage applications.
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LC (Lucent) connectors are one of the smallest formats of connector. They've become the standard for SFP modules and most modern network electronics.
Common applications: networking, SFP modules, AV over fiber extenders, high-density connection applications
SC (subscriber or standard) connectors are larger and less expensive than LC connectors. Their size makes them easier to terminate, but it also limits their application in modern, size-sensitive electronics.
Common applications: networking, multiplexers, media converters, demarc wiring, telecom applications
ST (straight tip) connectors provide a secure, spring-loaded locking connection that's similar to the BNC connectors historically used in AV applications.
Common applications: networking, datacom applications
FC (ferrule core) connectors are rapidly decreasing in use thanks to the rise of LC connectors. Similar to the ST connector, FC connectors provide a secure, locking connection that delivers a precise optical wave.
Common applications: video over fiber electronics, test equipment, telecom applications
MTRJ (mechanical transfer registered jack) connectors are typically used for duplex multimode connections and are increasing in popularity due to their small form factor and easy connection/disconnection. They look and feel similar to a traditional RJ45 connector.
Common applications: networking
FJ (fiber-jack or opti-jack) connectors are similar to MTRJ connectors in size and scope. They were designed by Panduit™ to offer a quick connection option when wiring buildings with fiber.
Common applications: building wiring, networking
8 - 10.5um (9um common)