Most modern splicers achieve splice cycles in 5–8 seconds, with heating times averaging 8–10 seconds. I can do about 12 in half an hour, including the prep time of the first two steps. Any. The two primary industry-accepted methods for fiber optic cable splicing are fusion splicing and mechanical splicing. The choice between them depends on performance requirements, budget constraints, and the specific application environment. With splicing times as quick as six to seven seconds, you'll be zipping through jobs like never before. And that's not just a one-off – this speed is. Fiber optic splicing is the process of joining two fiber optic cables together so that light signals can pass with minimal loss or reflection.