Overview The Cisco QSFP-100G-SR1.2= is a QSFP28 optical transceiver module designed to deliver 100 Gigabit Ethernet connectivity over multimode fiber. It supports data rates up to 100 Gbps and operates with LC/UPC connectors compatible with OM4 and OM5 fiber types. This transceiver is ideal for data centers, campus backbones, and high-performance computing environments that require scalable bandwidth solutions without major network redesigns. With dual wavelengths of 855 nm and 908 nm, it enables bidirectional transmission over distances up to 328 feet, making it suitable for rack-to-rack or row-to-row connections. Its hot-swappable design allows for easy installation or replacement without interrupting network operations, ensuring continuous uptime for critical applications. Key features Supports 100 Gbps data rate based on the Ethernet 100GBase-SR1.2 standard for high-speed network performance LC/UPC multimode interface compatible with OM4 and OM5 fiber, providing flexibility in cabling infrastructure Operates at two wavelengths (855 nm and 908 nm) to enable bidirectional communication, reducing fiber count on short-reach links Hot-swappable design minimizes downtime during maintenance or upgrades, keeping networks operational Digital Optical Monitoring (DOM) offers real-time insight into temperature, optical power, and signal quality for proactive management Reliable operation within a temperature range of 10 °C to 60 °C, suitable for most controlled data center environments Durable construction from Cisco ensures long service life and consistent performance in demanding network setups Key specs Data rate: 100 Gbps Standard: Ethernet 100GBase-SR1.2 Connector type: LC/UPC Fiber compatibility: OM4 and OM5 multimode fiber Wavelengths: 855 nm and 908 nm Maximum reach: 328 feet (100 meters) Operating temperature: 10 °C to 60 °C Form factor: QSFP28 Connectivity and compatibility This transceiver module integrates seamlessly with switches, routers, and network interface cards that support QSFP28 ports. Its compatibility with OM4 and OM5 multimode fiber allows it to fit into existing fiber infrastructures commonly found in modern data centers and enterprise networks. The LC/UPC connector type is widely used, ensuring straightforward installation and maintenance. Performance and reliability The module’s bidirectional transmission capability reduces the number of fibers needed for short-reach links, simplifying cabling and lowering costs. Digital Optical Monitoring provides continuous feedback on critical parameters, helping network administrators detect and address potential issues before they impact performance. Cisco’s robust build quality supports reliable operation in typical data center temperature ranges, contributing to network stability and uptime. Ideal uses and environments This transceiver is well suited for high-density data center environments, including spine-and-leaf network fabrics and aggregation layers. It supports bandwidth expansion for next-generation servers and high-performance computing clusters. Its hot-swappable nature and real-time monitoring features make it a strong choice for environments where minimizing downtime and maintaining network visibility are priorities.
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