What is an optical fiber patch cord? What are the types and differences?

SC fiber jumper：

SC fiber jumper: developed by Japan NTT company, the structure and size of its pin and coupling sleeve are exactly the same as FC type. The standard square connector, the fastening method of the plug-in latch type lock, does not need to be rotated, and is often used as the connector of the GBIC optical module, and is used more on the router. It has the characteristics of low price and small fluctuation of access loss. Commonly used for 100G BASE-FX connection.

FC fiber jumper：

FC fiber optic patch cord: It was first developed by NTT in Japan. FC is the abbreviation of Ferrule Connector in English. The outer protective sleeve is a metal sleeve and the fastening method is a turnbuckle. Generally used on the ODF side, the most used on the patch panel. It has the advantages of strong tightness and dust resistance.

ST fiber jumper：

ST optical fiber jumper: the shell is round, the fastening method is a turnbuckle, the core is exposed, and the plug is inserted half a circle to fix it with a bayonet. Often used as a 10BASE-F connector, it is mostly used for optical fiber distribution frames.

MPO fiber optic patch cord：

The MPO (Multi-fiber Push On) fiber optic jumper connector is one of the MT series connectors. The two guide holes with a diameter of 0.7mm on the left and right sides of the ferrule are accurately connected with the guide pin (also called PIN pin). Various forms of MPO jumpers can be produced after processing MPO connectors and optical fiber cables.