Article Overview
The small square connector commonly used on multimode fiber optic cables is called an SC (Subscriber Connector or Standard Connector).
The SC connector is a widely used fiber optic connector characterized by its square or rectangular shape and push-pull snap-in design, which allows for easy connection and disconnection . It uses a 2.5 mm ceramic ferrule to align the fiber cores precisely, ensuring low insertion loss and stable signal transmission . SC connectors are suitable for both single-mode and multimode fiber systems and are available in simplex and duplex configurations for single-direction or full-duplex communication .
Key Features
- Push-Pull Mechanism: Enables quick and secure connections without twisting or screwing .
- Durability: Rated for up to 1000 mating cycles with minimal signal loss .
- Applications: Commonly used in telecommunications, data centers, LANs, and Fiber-to-the-Home (FTTH) deployments .
- Comparison: While SC connectors are larger than LC connectors (which use a 1.25 mm ferrule), they remain popular in multimode networks due to their ease of use and reliability . In summary, if you see a small square connector on a multimode fiber optic cable, it is almost certainly an SC connector, designed for efficient, reliable optical connections in a variety of network environments .
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