Huawei Composite Optical Cable Splicing

Huawei optoelectronic composite cables integrate optical fibers and copper wires, allowing simultaneous data transmission and power supply, and require careful splicing to ensure performance and reliability.Overview of the CableHuawei's photoelectric composite cable combines optical fibers for data and copper wires for power delivery in a single cable, supporting both feeder and branch connections with varying maximum lengths depending on the configuration (e.g., 20 m feeder with 80 m branch, or 2 m feeder with 150 m branch) and maintaining low insertion loss . The cable is designed to withstand bending, mechanical stress, and voltage tests without cracking or short circuits .Tools and MaterialsProper splicing requires:Cable stripping tools for both optical fibers and copper wiresCrimp tubes and 3-pin connectorsHeat shrink tubingAdhesive tape for securing fibers in splice boxesOptical power meter to verify signal integrity after splicing Splicing ProcedureRouting and Preparation: Route the composite cable through the installation tube and out of the panel box. Cut the cable along the center to separate the copper wires and expose the optical fiber .Copper Wire Connection: Strip 5–8 mm of the copper wire jacket. Connect the red and black wires to the corresponding wires in the 3-pin connector using crimp tubes, ensuring no copper leakage. Secure with heat shrink tubing .Optical Fiber Splicing: Splice the optical fibers using standard fusion or mechanical splicing techniques. Store the spliced fibers in a secure 86 box, using adhesive tape to prevent movement .Testing: Use an optical power meter to check insertion loss and ensure the optical signal is within the normal range. Verify both the connector and cable losses are acceptable .Splice Closure ConsiderationsFor outdoor or complex installations, Huawei splice closures provide mechanical protection and strain relief. These closures include:A closure body with cable traysNut and abutting components with elastic members to secure the cableGaskets and wedge-shaped blocks to prevent water ingress and maintain cable alignment The elastic members deform to hold the optical cable firmly, while gaskets ensure sealing. This design allows branching cables to be installed securely without compromising the integrity of the main cable .Best PracticesAvoid sharp bends and excessive tension on the cable to prevent fiber breakage.Ensure proper alignment of copper wires and optical fibers to minimize insertion loss.Always test optical power after splicing to confirm performance.Use appropriate splice closures for outdoor or high-stress environments to protect the cable from environmental factors . By following these steps and using the recommended tools, Huawei optoelectronic composite cables can be spliced efficiently, ensuring reliable data transmission and power delivery over long distances.