Optical fiber cable is manufactured to meet optical, mechanical or environmental performance specifications. It uses one or more optical fibers placed in a sheath as the transmission medium and can be individually or in groups. Communication cable assembly used by the group.
The methods mainly include permanent connection, emergency connection, and active connection.
1. Permanent optical fiber connection (also called hot melt): This type of connection uses discharge to melt and connect the connection points of two optical fibers together.
Generally used for long-distance connections, permanent or semi-permanent fixed connections.
The main feature is that the connection attenuation is the lowest among all connection methods, with a typical value of 0.01~0.03dB/point.
But when connecting, special equipment (fusion splicing machine) and professionals are required to operate, and the connection points also need to be protected by special containers.
2. Emergency connection (also called) cold fusion: Emergency connection mainly uses mechanical and chemical methods to fix and bond 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 connection point will become unstable after long-term use, and the attenuation will also increase significantly, so it can only be used for emergency use in a short period of time.
3. Active connection: Active connection is a method that uses various optical fiber connection devices (plugs and sockets) to connect sites to sites or sites to optical cables.
This method is flexible, simple, convenient and reliable, and is often used in computer network cabling in buildings.
The typical attenuation is 1dB/connector.
