Classification of fiber optic patch cords


In fact, the optical fiber jumper is also called the op […]

In fact, the optical fiber jumper is also called the optical fiber connector. By installing the connector joints on both ends of the optical cable, the equipment and the optical fiber wiring link are connected; one end with a plug is called a pigtail. Optical fiber connectors are widely used in network wiring, and to a certain extent also affect the reliability and other performance of the entire optical transmission system.

   The following is a detailed description of several commonly used optical fiber connectors:

1. LC type optical fiber jumper: the connector to connect the SFP module, the connector is similar to the SC, but smaller than the SC, it uses the easy-to-operate modular jack (RJ) latch, the size of the pin and sleeve is 1.25 mm, half the size used by ordinary SC and FC. Connecting SFP optical modules, often used in routers, can increase the density of optical fiber connectors in optical fiber distribution frames to a certain extent. .

  2. SC-type optical fiber jumper: The English full name of SC is sometimes referred to as "Square Connector", because its shell is rectangular, and the fastening method is plug-in latch type without rotation. It is a connector standardized by TIA-568-A, but it was not widely used in the early stage due to its high price (twice the price of ST). Different from ST/FC, SC fiber jumper is a pluggable device, often used as a connector for connecting GBIC optical modules, with excellent performance and gradually being widely used. (Most used on router switches)

  3. FC type optical fiber jumper: FC is the abbreviation of Ferrule Connector, indicating that its external reinforcement is made of metal sleeve, and the fastening method is turnbuckle. FC is one of the most common connection devices in single-mode networks. It also uses a 2.5mm ferrule, but some of the early FC connectors are designed with ceramic built-in stainless steel ferrule. Generally used on the ODF side (most used on the distribution frame), it has the advantages of reliability and dust resistance. FC has been replaced by SC and LC connectors in most applications.

  4. ST-type optical fiber jumper: The full English name of ST is marked as "Stab & Twist", that is, insert it first, then tighten it. Its shell is round, the fastening method is a turnbuckle, and the core is exposed. After the plug is inserted, it has a bayonet to fix it half a rotation. It is the most common connection device in a multimode network (such as in most buildings or campus networks). (For 10Base-F connection, the connector is usually ST type. Often used in optical fiber distribution frames)

  5. MT-RJ type optical fiber jumper: a square optical fiber connector with transceiver integrated, a dual-fiber transceiver integrated.

   There are many manufacturers of fiber optic patch cords at home and abroad, and their product lines are also extremely rich.

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