Huawei single-mode optical module 20km

Huawei 20km single-mode optical modules are designed for long-distance transmission over single-mode fiber, supporting data rates from 1G to 100G with wavelengths typically around 1310nm or 1291/1311nm for BIDI applications.OverviewHuawei 20km single-mode optical modules are used to extend network connectivity over long distances using single-mode fiber (SMF). They are available in various form factors and data rates:SFP (1G): Example, SFP-1G-LX-20KM-HU supports 1000BASE-LX with LC duplex connectors, transmitting at 1310nm over distances up to 20km. It is compatible with Huawei switches, routers, and storage systems, and built to MSA standards for reliability and long service life .SFP+ (10G): Modules like SFP-10G-LR-1310nm provide 10GBase-LR throughput up to 20km over SMF using 1310nm wavelength via LC connectors. They support Digital Optical Monitoring (DOM) for real-time diagnostics and are fully compatible with Huawei equipment .QSFP28 (100G BIDI): The 100G BIDI QSFP28 transceiver uses TX1291nm/RX1311nm wavelengths with PAM4 signaling for up to 20km over single-mode fiber. It supports 103.125/106.25Gb/s data rates and is suitable for 100GBASE-LR1 BIDI applications, requiring paired modules for bidirectional transmission .Key FeaturesSingle-Mode Fiber Compatibility: Optimized for long-distance transmission with low attenuation.Wavelengths: Typically 1310nm for standard SFP/SFP+ modules; BIDI modules use paired wavelengths like 1270/1330nm or 1291/1311nm.Form Factors: SFP for 1G, SFP+ for 10G, QSFP28 for 100G, supporting hot-swappable installation.Digital Diagnostics: Many modules include DOM for monitoring optical power, temperature, and voltage.Standards Compliance: Modules comply with IEEE standards (1000BASE-LX, 10GBASE-LR, 100GBASE-LR1), MSA specifications, and certifications like ISO 9001, CE, RoHS, and FCC .Bidirectional (BIDI) Options: Single-fiber BIDI modules must be used in pairs, e.g., SFP-10G-ER-SM1270-BIDI with SFP-10G-ER-SM1330-BIDI .ApplicationsLong-distance Ethernet connections in campus networks, data centers, and metro networks.Interconnecting switches, routers, and storage systems over distances up to 20km.High-speed backbone links using 10G or 100G transceivers.Single-fiber deployments using BIDI modules to reduce fiber cabling requirements.SummaryHuawei 20km single-mode optical modules provide reliable, long-distance connectivity for 1G, 10G, and 100G networks. They are available in standard duplex or BIDI configurations, support LC connectors, and comply with industry standards to ensure compatibility and performance across Huawei networking equipment .