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What are the types of fiber optic quick connectors?

author:kingsignal time:2017/05/19

1. FC type fiber optic connector

 

This connector was first developed by the Japanese NTT. The earliest, FC type of connector, the use of ceramic pin docking face is a plane contact. This kind of connector has the advantages of simple structure, convenient operation and easy manufacture, but the fiber end face is more sensitive to dust and prone to Fresnel reflection, and it is more difficult to improve the return loss performance. Later, the type of connector has been improved, the use of docking the face of the spherical pin (PC), while the external structure has not changed, making the insertion loss and return loss performance has been greatly improved.

 

2. SC type fiber optic connector

 

This is a fiber optic connector developed by Japan's NTT company. Its shell is rectangular, the use of the pin and the coupling sleeve.

 

Structural size and FC type exactly the same, which pin the end of the use of PC or APC-type grinding method; fastening method is to use plug-and-pin type, without rotation. Such connectors are inexpensive, easy to plug and operate, small fluctuations in interventional losses, high compressive strength, high mounting density.

 

3. Double cone connector

 

The most representative of this type of fiber optic connector was developed by Bell Labs in the United States, which consists of two carefully molded, rounded conical cylindrical plugs and a double- Tube coupling components.

 

4.DIN4 type fiber optic connector

 

This is a connector developed by Germany. This connector uses the pin and coupling sleeve structure size and FC type the same, the end of the use of PC grinding method. Compared with the FC-type connector, its structure to be more complex, the internal metal structure in the control of the pressure of the spring, can avoid the insertion pressure is too large and damage the end face. In addition, the mechanical accuracy of such a connector is high, and thus the insertion loss value is small.

 

5.MT-RJ type connector

 

The MT-RJ starts with the MTT developed by NTT with the same latching mechanism as the RJ-45 type LAN electrical connector, aligns the fiber with a guide pin mounted on both sides of the small sleeve. Machine connected, the connector end of the fiber for the dual-core arrangement design, is mainly used for data transmission next generation of high-density optical connectors.

 

6. LC type connector

 

LC-type connectors are developed by the well-known Bell Research Institute and are manufactured using a convenient modular jack latch mechanism. The size of the pins and sleeves used is half that of ordinary SC, FC, etc., is 1.25mm. This increases the density of the fiber optic connectors in the optical patch panel. At present, in the single-mode SFF, LC-type connector has actually occupied the dominant position in the multi-mode applications are also growing rapidly.

 

7.MU type connector

 

The MU connector is the world's smallest single-core fiber connector developed by NTT, based on the most widely used SC-type connectors, with 1.25mm diameter bushings and self-retaining mechanisms. Can achieve high-density installation. With the MU's l.25mm diameter casing, NTT has developed a series of MU connectors. (MU-A series), a backplane connector (MU-B series) with self-retaining mechanism, and a simplified socket for connecting LD / PD modules and plugs (MU-SR series) )Wait. With the rapid development of fiber-optic networks to larger bandwidth and greater capacity, and the widespread use of DWDM technology, the demand for MU-type connectors will grow rapidly.

 

The above is a brief introduction to the fiber optic quick connector, learn more about the fiber optic quick connector content, please pay attention to kingsignal official website.

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