Fiber optic jumpers (also known as fiber optic connectors), which are fiber optic connectors used to connect optical modules, have many types and cannot be used interchangeably with each other. The SFP module is connected to an LC fiber optic connector, while the GBIC is connected to an SC fiber optic connector. Below is a detailed explanation of several commonly used fiber optic connectors in network engineering:
① FC type fiber optic jumper: The external reinforcement method is to use a metal sleeve, and the fastening method is to use a screw buckle. Usually used on the ODF side (most commonly on distribution frames)
② SC type fiber optic jumper: a connector that connects GBIC optical modules. Its outer shell is rectangular and fastened using a plug and pull pin latch type, without the need for rotation. (Most commonly used on router switches)
③ ST type fiber optic jumper: commonly used in fiber optic distribution frames, with a circular outer shell and a screw buckle fastening method. (For 10Base-F connections, connectors are usually ST type. Commonly used in fiber optic distribution frames)
④ LC type fiber optic jumper: a connector for connecting SFP modules, made using a modular jack (RJ) latch mechanism for easy operation. (commonly used in routers)