What are the characteristics of st\ sc\ lc\ fc five types of optical fibers?

　　ST, SC, LC, and FC are four common types of fiber optic connectors, each with its own unique characteristics. The following is a detailed introduction to these four types of fiber optic connectors:

　　ST connector

　　Appearance: The shell is round with bayonet.

　　Connection method: When connected to the ST coupler, it needs to be rotated by about 90 ° for fixing.

　　Features:

　　The connection is tight and does not fall off easily.

　　Due to the rotating design, it may break easily and requires careful handling.

　　High stability, suitable for scenarios with high stability and reliability requirements during fiber optic docking.

　　The optimized optical design minimizes the loss of optical signals during coupling and beam splitting.

　　Wide temperature range, stable performance, suitable for a variety of indoor and outdoor environments.

　　SC connector

　　Appearance: The shell is rectangular.

　　Connection method: When connected to the SC coupler, it is directly plugged and unplugged without rotation.

　　Features:

　　The design is simple, compact and easy to operate.

　　It has good mechanical properties and high insertion and unplugging times.

　　The built-in snap-on locking mechaniSM ensures that the connector is securely attached to the fiber optic Adapter or device.

　　The fiber end faces are precisely polished to ensure a low-loss fiber connection.

　　Standardized size to ensure compatibility with other standardized fiber optic devices.

　　LC connector

　　Appearance: Small in size, made with a modular jack (RJ) latch mechanism.

　　Connection method: plug-in connection.

　　Features:

　　Miniaturized design for scenarios with limited space for high-density cabling and fiber optic connections.

　　Low insertion loss and high return loss ensure high-quality transmission of optical signals.

　　Easy to operate, convenient for quick connection and disconnection.

　　It is suitable for connection between multimode and single-mode fibers.

　　FC connector

　　Appearance: Round shape with internal thread.

　　Connection method: Connect with FC coupler by rotation.

　　Features:

　　The connection is reliable and dust-proof.

　　The thread fixing method makes the connection process relatively cumbersome, but it ensures the stability and reliability of the connection.

　　It is widely used in various optical fiber communication systems, including local area networks, metropolitan area networks, and wide area networks.

　　The interface has a larger diameter and takes up more space.

　　In summary, ST, SC, LC, FC four fiber optic connectors have significant differences in appearance, connection, characteristics and application scenarios. When selecting, users should choose the appropriate connector type according to specific application requirements and scenarios to ensure the stability and reliability of the fiber optic communication system. At the same time, these four fiber optic connectors follow international standards to ensure compatibility with other standardized fiber optic equipment.