Knowledge

How to connect the fiber optic cable?

Feb 04, 2022

The methods mainly include permanent connection, emergency connection and active connection.

1. Permanent fiber optic connection (also called hot melt)

This connection is to use the method of electric discharge to melt the connection point of the two fibers and connect them together. Generally used in long-distance connection, permanent or semi-permanent fixed connection. Its main feature is that the connection attenuation is the lowest among all connection methods, with a typical value of 0.01~0.03dB/point. However, when connecting, special equipment (fusion machine) and professionals are required to operate, and the connection point also needs to be protected by a special container.

2. Emergency connection (also called cold melting)

The emergency connection mainly uses mechanical and chemical methods to fix and bond the two optical fibers together. The main feature of this method is that the connection is fast and reliable, and the typical attenuation of the connection is 0.1~0.3dB/point. However, the long-term use of the connection point will be unstable, and the attenuation will increase greatly, so it can only be used for emergency use in a short time.

3. Active Connections

Active connections are a method of connecting sites to sites or sites to fiber optic cables using various fiber optic connection devices (plugs and receptacles). This method is flexible, simple, convenient and reliable, and is mostly used in computer network wiring in buildings. Its typical attenuation is 1dB/connector.


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