ST, SC, FC, LC fiber optic connector interface difference

ST, SC, FC, and LC fiber optic connector interface differences, fiber optic connectors, that is, fiber optic connectors connected to optical modules, there are also many kinds, and they cannot be used with each other. People who are not often exposed to optical fibers may mistakenly think that the optical fiber connectors of GBIC and SFP modules are the same, but they are not. The SFP module is connected to an LC fiber optic connector, while the GBIC is connected to an SC fiber optic connector.

The following is a detailed description of several commonly used fiber optic connectors in network engineering:

FC type optical fiber connector: the external strengthening method is a metal sleeve, and the fastening method is a turnbuckle. Generally used on the ODF side (the most used on the distribution frame)

SC type fiber optic connector: Connector for connecting GBIC optical module, its shell is rectangular, and the fastening method is plug-and-pull latch type, without rotation. (Most used on router switches)

ST-type fiber optic connector: often used in fiber optic distribution frames, the outer shell is round, and the fastening method is a turnbuckle. (For 10Base-F connection, the connector is usually ST type. Commonly used in fiber distribution frame)

LC-type fiber optic connector: A connector that connects to an SFP module, which is made with a modular jack (RJ) latch mechanism that is easy to operate. (commonly used by routers)

MT-RJ: a square optical fiber connector with integrated transceiver, one end with dual fiber transceiver

Introduction to various fiber optic interface types (fiber optic connectors):

FC round threaded (mostly used on patch panels)

ST snap-in round

SC snap-in square type (mostly used on router switches)

PC microsphere grinding and polishing

APC is angled at 8 degrees and microspherically ground and polished

MT-RJ Square type, dual fiber transceiver at one end