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Fiber Connector vs. Fiber Adapter

Views: 128     Author: Site Editor     Publish Time: 2020-06-23      Origin: Site

Some people think that fiber optic adapter and fiber connector are the same thing, but actually they are different.



1. Optical fiber adapter

The optical fiber adapter (flange) is the intermediate connecting part of the optical fiber movable connector. Series products include FC, SC, ST, LC and MTRJ. It is widely used in optical distribution frame, optical fiber communication equipment, instruments, etc.


There are standard and conversion types of fiber adapters. Adapters are required for jumpers, tail cables, and terminal boxes. Its main function is the connection between equipment. For example, a jumper is called a jumper when an adapter is installed on both ends of an optical fiber. Installing an adapter at one end of the fiber is called tail cable.


Product Types



Fiber optic adapters are divided into SC, FC and ST. SC stands for Standard Connector. ST stands for Straight Tip. FC stands for Fiber Connector.



2. Optical Fiber Connector

The function of optical fiber connector is very simple. It bridges the blocked or isolated circuits in the circuit, so that the current can flow and the circuit can achieve the predetermined function. The connectors are divided into SJ2298-83 (printed circuit connector), SJ2297-83 (rectangular connector), SJ2459-84 (ribbon cable connector), GB9538-88 (ribbon cable connector), etc.


According to different transmission media, optical fiber connectors can be divided into common single-mode and multi-mode connectors of silicon-based optical fiber, and other optical fiber connectors with plastic as transmission media. According to the structure of connectors, they can be divided into FC, SC, ST, LC, D4, DIN, MU, MT and other forms. Among them, ST connector is usually applied for wiring equipment end, such as fiber distribution frame, fiber module, etc. While SC and MT connector are usually applied for network equipment end. There are FC, PC (including SPC or UPC) and APC according to the end face shape of optical fiber. There are single core and multi-core (such as MT-RJ) according to the number of optical fiber cores. Fiber optic connectors are widely used and of various kinds.



3. Difference between Fiber Adapter and Connector (Main Characteristics)

The optical fiber is connected by the fiber optic adapter through its internal open sleeve to ensure the highest connection performance between optical fiber jumpers. In order to be fixed on various panels, a variety of fine fixed flanges are also designed. The adapter can connect different types of fiber jumper interface and provide the connection between APC end faces. Double or multiple connections increase installation density.


The optical fiber connector is a detachable (movable) connection device between different optical fibers. It precisely connects the two end faces of the optical fiber, so that the optical energy output from the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent, and the impact on the system caused by its intervention in the optical link is minimized. This is the basic requirement of the optical fiber connector. To some extent, the optical fiber connector also affects the reliability and performance of the optical transmission system.