Featuring a carrier-grade SC port and embedded PEI material, this cold splicer enables fast, reliable, and tool-free fiber optic connections without the need for heat or fusion splicing. Fiber fast connectors (also called mechanical splices or cold connectors) are essential components in FTTH deployments. It outlines the process, compares it with fusion splicing, and highlights its benefits, such as speed, cost-effectiveness, and reliability in field conditions. Wirewerks Splice-On Connectors are compatible with any 2-3mm OD single fiber cable and are.