As global bandwidth demand surges—driven by 8K streaming, cloud computing, and enterprise digitization—ISPs face a critical dilemma. The market demands 10G symmetrical bandwidth, but the cost of overhauling existing Optical Distribution Networks (ODN) is prohibitive.
For network architects and procurement managers, the challenge is not just speed; it is compatibility. How do you deploy XGS-PON services without disrupting your existing GPON customer base?
The answer lies in the Combo PON technology. Specifically, the deployment of high-performance optical transceivers like the Superxon XGS-COMBO OLT SFP+.
Traditionally, upgrading a Passive Optical Network (PON) meant running parallel infrastructure or using external WDM (Wavelength Division Multiplexing) combiner elements (CEx), which introduce significant insertion loss (typically 1.0dB - 1.5dB) and complicate cabling management in the Central Office.
To maximize ROI, operators need a solution that allows:
· Simultaneous Transmission: GPON and XGS-PON signals running on the same fiber.
· Zero ODN Changes: Reusing existing splitters and fibers.
· Space Efficiency: Fitting into standard OLT ports without extra rack space.
Superxon’s XGS-COMBO OLT SFP+ module serves as the pivotal component for this "smooth migration" strategy. It is a 3-in-1 optical transceiver designed to support both GPON and XGS-PON standards simultaneously within a compact SFP+ form factor.

Multi-Wavelength Management: The module integrates optical components that handle four distinct wavelengths:
· XGS-PON: 1577nm (Tx) / 1270nm (Rx)
· GPON: 1490nm (Tx) / 1310nm (Rx)
By utilizing distinct wavelengths, the Superxon Combo module ensures zero interference between legacy GPON ONUs and new XGS-PON ONUs.
High Optical Power Budget: Designed to meet Class C+ and Class D link budget requirements, Superxon’s module offers high output power and superior receiver sensitivity. This is crucial for overcoming the inherent losses in established ODNs with high split ratios (up to 1:128), ensuring stable connections at the network edge.
Standard Compliance: Fully compliant with ITU-T G.987.2, G.9807.1, and G.984.2 standards, ensuring interoperability with major OLT equipment manufacturers.
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In the competitive landscape of optical communications, Superxon stands out through rigorous reliability testing and manufacturing precision.
Industrial-Grade Reliability: Our XGS-COMBO modules are tested for extreme temperature stability, ensuring performance in diverse Central Office environments.
Cost-Effective Evolution: By integrating the WDM function inside the transceiver, we eliminate the need for external WDM combiners, saving approximately 15-20% in deployment costs and reducing link loss budget concerns.
Scalability: ISPs can upgrade users to XGS-PON individually (on-demand) simply by changing the customer premise equipment (ONU), while the OLT side is already future-proofed.
The transition to 10G PON is not a question of if, but when. The Superxon XGS-COMBO OLT SFP+ offers the most logical, cost-efficient, and technically robust path forward. It empowers operators to protect their legacy investments while unlocking the revenue potential of 10G symmetrical services.
Don't let infrastructure limitations hold back your network evolution.
Ready to test the performance? Contact our engineering team today for the datasheet and sample availability of the Superxon XGS-COMBO OLT SFP+.