A fiber fast connector, also known as a mechanical splice or cold connector, is a field-installable connector that terminates fiber optic cables without requiring a fusion splicer. Advantages and disadvantages of fiber optic cold splicing Fiber cold splicing refers to. Emergency connection, also known as cold splicing, uses mechanical and chemical methods to fix and bond two fibers together. This method is quick and reliable, with typical attenuation ranging from 0. However, the connection can become unstable over time, so it is only suitable. There are two primary techniques for terminating fiber optic cables: Splicing: Joining two fiber optic cables permanently. Fiber splicing is the process of permanently joining two optical fibers end-to-end. The basic difference between the two methods is simple: with fusion splicing, the fibres are melted and fused (welded) together, creating a permanent connection, whereas with mechanical Splicing, they. Fiber optic joints or terminations are made two ways: 1) splices which create a permanent joint between the two fibers or 2) connectors that mate two fibers to create a temporary joint and/or connect the fiber to a piece of network gear. We'll explain what each method.