Learn how to splice fiber optic cable using fusion splicing with this complete step-by-step guide. Includes tools, best practices, loss standards (ITU-T G. 652), cost analysis, and FAQs for network engineers and installers. A working familiarity with cable splicing tools and procedures is necessary as this guide does not cover all aspects. In this guide, we cover the basics of fiber optic splicing, how to perform splicing using two different methods, and finally some best practices to perform good fiber splicing. Ensure Your Splicing Tools are Clean – #2. Use and Maintain Your. cketRibbonTM Subunit into a Single Splice Tray in a 12-fiber ribbons you want to split with one ribbon on top and one ribbon on the bottom of your finger (Figure 4).