Ubiquiti UFiber XGS WDM Module (UACC-UF-WDM-XGS)

The Ubiquiti UFiber XGS WDM Module (UACC-UF-WDM-XGS) is a compact and essential optical component designed to optimize fiber infrastructure by enabling bidirectional transmission over a single fiber strand using Wavelength Division Multiplexing (WDM) technology. Developed as a plug-in accessory for Ubiquiti’s UFiber OLT systems, specifically for XGS-PON deployments, this module plays a crucial role in simplifying network architecture while maximizing the efficiency of existing fiber resources. WDM allows the module to combine both downstream and upstream signals, each on distinct wavelengths, into a single fiber line, effectively doubling the usage capacity of deployed fiber without additional physical cables. This functionality reduces fiber demand, lowers deployment costs, and improves scalability for service providers rolling out high-capacity XGS-PON broadband services.

The UACC-UF-WDM-XGS module is designed for seamless integration with the UISP Fiber OLT XGS, where it inserts directly into each PON port to enable XGS-PON signaling. The module ensures that downstream traffic operates at the 1577 nm wavelength while upstream data is transmitted at 1270 nm—standard wavelengths used in modern XGS-PON technology. This separation enables precise and interference-free data flow, which is essential for maintaining the symmetrical 10 Gbps performance that XGS-PON networks offer. The device is hot-swappable and built with high-quality optical components, ensuring minimal signal loss, strong optical isolation, and consistent performance in demanding fiber environments.

One of the key advantages of deploying the UFiber XGS WDM Module is the simplification it brings to network design. Traditionally, operators would require two dedicated fiber strands for each connection—one for downstream and one for upstream. With this module, both channels share a single strand, reducing fiber usage by half and enabling more cost-effective deployment in areas where trenching or conduit space is limited. This reduction in fiber demand is particularly beneficial in urban environments, multi-dwelling units (MDUs), or long-distance rural applications where fiber availability or cost is a constraint.

In addition to performance benefits, the UACC-UF-WDM-XGS module integrates smoothly with Ubiquiti’s UISP management platform. UISP allows operators to provision, monitor, and manage XGS-PON networks at scale, including all active and passive components. Administrators can verify WDM module status, signal integrity, and optical performance through an intuitive dashboard interface. The module’s compact footprint, robust construction, and reliable optical characteristics make it an indispensable component in any XGS-PON deployment strategy. Whether expanding an existing GPON infrastructure or deploying a new symmetrical 10G fiber network, the UFiber XGS WDM Module ensures network efficiency, high-performance signal delivery, and optimal use of available fiber assets.