Cisco GPON Transceiver SFP-GPON-B

Modern data centers, enterprise networks, and cloud providers face growing demands for bandwidth, driven by expansion in virtualization and data-intensive applications. As organizations outgrow traditional 10 Gigabit Ethernet infrastructures, moving straight to 100G can prove cost-prohibitive or complex. Cisco 25GBASE SFP28 technology bridges this gap by providing a direct, cost-effective migration path that improves throughput while maintaining operational simplicity.

By leveraging single-lane 25G optical technology, Cisco enables IT departments to scale physical network infrastructure seamlessly. This module portfolio delivers top-tier networking performance while preserving energy efficiency, allowing businesses to maximize fiber plant investments, streamline architecture, and prepare environments for next-generation workload demands.

Product overview

The Cisco 25GBASE SFP28 portfolio encompasses a comprehensive suite of transceivers and direct-attach options engineered for diverse operational scenarios. For short-range data center applications, the portfolio features the Cisco SFP-25G-SR-S for multimode fiber up to 100 meters, alongside the SFP-25G-CSR-S module which extends short-reach optics up to 300 meters. For campus and metro connections, the Cisco SFP-25G-LR-S supports single-mode fiber up to 10 kilometers, while the SFP-25G-ER-S delivers extended reach up to 40 kilometers.

To optimize high-density multiplexing, Cisco provides specialized WDM optical solutions. These include 25G CWDM SFP28 modules for multi-wavelength distribution across enterprise links and 25G DWDM SFP28 transceivers for long-haul capacity expansions. Additionally, for single-strand fiber efficiency, Cisco offers SFP-25G-BIDI transceivers operating over bidirectional links for 10km and 20km distances.

For intra-rack cabling, Cisco offers reliable direct-attach options. The line includes Cisco SFP-H25G-CU Direct Attach Copper (DAC) cables in lengths from 1 to 5 meters, as well as Cisco SFP-25G-AOC Active Optical Cables from 1 to 10 meters. Furthermore, breakout solutions like the QSFP to 4x SFP28 AOC and copper breakout cables facilitate high-density connections between 100G QSFP28 ports and 25G server endpoints.

Features and benefits

• Excellent investment protection through dual-rate capability and backward compatibility with 10G SFP+ switch interfaces.
• Optimized network architecture delivering single-lane 25Gbps throughput in a compact SFP28 form factor.
• Full spectrum coverage including SR-S, CSR-S, LR-S, ER-S, BIDI, CWDM, DWDM, DAC, and AOC products for any deployment distance.
• Reduced operational expenditures achieved through low power consumption and optimized thermal performance.
• Advanced diagnostic capabilities utilizing Digital Optical Monitoring (DOM) for proactive link troubleshooting.
• Hot-swappable interface design allowing uninterrupted service and easy maintenance during network expansions.