Huawei Optical Module Interface

Huawei optical modules primarily use SFP/SFP+ and QSFP/QSFP28 interfaces for high-speed fiber connectivity.SFP/SFP+ InterfacesHuawei SFP (Small Form-factor Pluggable) and SFP+ modules are widely used for 1G to 10G connections in switches, routers, and servers . Key characteristics include:SFP: Supports 1 Gbps (Gigabit Ethernet) and lower-speed connections. Commonly used in GPON and broadband access networks .SFP+: Enhanced version supporting 10 Gbps transmission. Compatible with LC fiber connectors and suitable for data center uplinks and aggregation layers .SFP28: Same form factor as SFP+ but supports 25 Gbps, ideal for high-density 25GE deployments .Applications: Data center interconnects, enterprise LANs, and FTTH networks. Some SFP modules also support DDM/eSFP for monitoring voltage, temperature, and optical power .QSFP/QSFP28 InterfacesQSFP (Quad Small Form-factor Pluggable) and QSFP28 modules are designed for high-bandwidth aggregation and core network links . Key features include:QSFP+: Supports 40 Gbps using four 10 Gbps lanes. Common in spine-leaf data center architectures.QSFP28: Supports 100 Gbps using four 25 Gbps lanes, suitable for high-speed backbone and switch interconnects .QSFP-DD: Double-density variant supporting 200–400 Gbps, optimized for ultra-high-speed data centers .Applications: High-performance computing, AI data centers, and large-scale enterprise networks.SummaryHuawei optical modules provide flexible plug-and-play options with two main interface categories:SFP/SFP+/SFP28 for 1–25 Gbps connections, suitable for access and aggregation layers.QSFP/QSFP28/QSFP-DD for 40–400 Gbps connections, ideal for core and spine data center links . These interfaces ensure high reliability, long-distance transmission, and compatibility across Huawei switches and routers, supporting both enterprise and carrier-grade deployments .