Fiber optic patch cords are the “piece de resistance” of any network system, as they connect the apparatus and the components while assuring both efficiency and security. In function of their connector, fiber optic cables are commonly categorized in LC, SC, FC, and ST. All these types of connectors can be used with either single mode or multimode fiber optic cables.

What are they and how to use them?

  • LC (Lucent Connector) is a small factor connector (uses only a 1.25mm ferrule diameter) that has a snap coupling mechanism. Because of its small dimensions, it is the perfect fit for high-density connections, XFP, SFP, and SFP+ transceivers.
  • FC (Ferrule Connector) is a screw type connector with a 2.5mm ferrule. FC is a round shaped threaded fiber optic connector. It was designed for the first time in Japan by Nippon Telegraph and Telephone Company. In time, FC became less popular because of its insertion loss and vibration loosening. At the moment, people tend to use LC and SC instead.
  • SC (Subscriber Connector), also known as the square connector was also created by the Japanese company – Nippon Telegraph and Telephone. SC is a push-pull coupling type of connector and has a 2.5mm diameter. Nowadays, it is used mostly in single mode fiber optic patch cords, analog, GBIC, and CATV. SC is one of the most popular options, as its simplicity in design comes along with great durability and affordable prices.
  • ST (Straight Tip) was invented by AT&T and uses a bayonet mount along with a long spring-loaded ferrule to support the fiber. Because it was developed soon after the FC’s launching they were often confused, one for another.

If you want to save your time, reduce your costs, and consult a professional, get in touch with PeakOptical A/S. We have a complex product portfolio that offers a great level of flexibility.  We make sure our products suit the majority of network environments, in order to give our clients the freedom to set up their networks in the way that works best for their companies.

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