Physical Structure and Size Comparison of Various Connectors: LC, SC, FC, ST, MPO

Physical Structure and Size Comparison of Various Connectors: LC, SC, FC, ST, MPO LC, SC, FC, ST, and MPO connectors exhibit

distinct differences in physical construction and dimensions, which influence their application scenarios and connection methods.

Physical Construction and Size Comparison

•  LC Connector: 

Features a 1.25mm ceramic ferrule, a compact square housing, and utilizes a modular jack (RJ) latching mechanism, making it suitable for high-density cabling.

•  SC Connector: 

Features a square housing with a 2.5mm ceramic ferrule. Utilizes a push-pull latch mechanism for easy insertion/removal. Larger dimensions than LC.

•  FC Connector: 

Features a circular housing with a 2.5mm metal ferrule. Secured via screw locking for robust construction. Identical dimensions to SC but with different material.

•  ST Connector: 

Features a circular housing with a 2.5mm ceramic ferrule. Utilizes a bayonet-style twist lock mechanism. Dimensions are identical to SC and FC, but the connection method differs.

•  MPO Connector: 

Features a flat rectangular profile with multiple fiber ports (typically 12 or 24 fibers) at the front end. Utilizes a push-pull latch mechanism and is larger than other connectors, making it suitable for high-density multi-fiber connections.

The physical construction and dimensions of these connectors determine their applicability in different scenarios. Selection should consider equipment interfaces, cabling density, and connection stability.