The Huawei-developed optical modules of CE series switches support two types of optical connectors: lucent connectors or local connectors (LCs) and Multi-fiber Push On (MPO) connectors. Figure 4 shows the appearance of an LC. Figure 5 shows the appearance of an MPO. Analysis of Common Fiber Interface Types SC interface: SC interface is widely used in industrial switches, with a rectangular appearance and a plug-in pin and latch fastening method, making it easy to operate. It is commonly used in local area network switching environments and has been applied. A switch must use optical or copper modules that have been certified for use on Huawei switches. Checking transceiver parameters allows users to monitor real-time operating status and locate link faults rapidly. We connect Moduletek SFP-10G-LR transceiver to Huawei S6700 switch, and. Optical fibers can be classified based on their optical transmission modes into multimode fibers (MMFs) and single-mode fibers (SMFs).