Active connection utilizes various fiber optic connectors (plugs and sockets) to connect site-to-site or site-to-cable. This method is flexible, simple, convenient, and reliable, commonly used in building computer network cabling. The typical attenuation is 1dB per connection. Key performance metrics include: Insertion Loss: ≤0. There are two primary. Fibre optic cables can be used in a huge variety of applications, from small office LANs, to datacentres, to inter-continental communication links.