Adtran has announced its participation in the Optical Internetworking Forum (OIF) open multi-vendor interoperability demonstration at ECOC 2025, showcasing its 100ZR+ and 400ZRE coherent pluggable transceivers and the Adtran FSP 3000 open line system (OLS). Adtran reports that its solutions were validated across multiple hosts and platforms in the recent OIF Plugfest and will be part of a live exhibition demonstrating disaggregated IP-over-Dense Wavelength Division Multiplexing (IPoDWDM) environments.
On the ECOC 2025 show floor, Adtran’s 100Gbit/s, 400Gbit/s and 800Gbit/s coherent pluggable optics will be used to transmit data signals over an open line system in a disaggregated architecture. The demonstration includes a 300 km Adtran FSP 3000 OLS multi-span link, operating Adtran’s 100ZR+ and 400ZRE coherent pluggable transceivers in both Adtran and third-party hosts and over a mix of Adtran and third-party OLS platforms. According to Adtran, this demo highlights how operators can scale network capacity with simple activation and integrated operational visibility, while retaining the freedom to select suppliers.
Adtran says the FSP 3000 OLS supports 100Gbit/s and 400Gbit/s services and is capable of data rates up to 1.6Tbit/s. The system features high‑resolution flexgrid, colorless Reconfigurable Optical Add-Drop Multiplexers (ROADMs), bidirectional inline amplifiers, automated span equalization, and integrated monitoring tools. Adtran’s 100ZR+ and 400ZRE coherent pluggables provide 0 dBm output, support low power consumption, and have demonstrated interoperability across various vendor platforms, with performance results validated during the OIF Plugfest held prior to ECOC 2025.
“Interoperability at the module level is essential for open, vendor-neutral networks,” said Ross Saunders, GM of Optical Engines, Adtran. “Our first-time participation in the OIF Plugfest validated the performance of our 100ZR+ and 400ZRE coherent pluggables across multiple vendors and platforms, with results captured in OIF event materials. This complements the live ECOC demo and underscores the growing industry momentum toward open, multi-vendor optical infrastructures, giving operators confidence that ZR optics from different suppliers will work together in real deployments. It helps de-risk rollouts, support flexible sourcing and keep options open as providers scale to keep pace with AI-driven and cloud-native applications.”
The OIF interoperability demonstration at ECOC 2025 will feature contributions from 35 member companies, covering a range of optical and electrical interfaces, including 400ZR, 800ZR, OpenZR+, and others. This broad industry collaboration aims to demonstrate operational readiness and interoperability for open, scalable networks, with specific focus on data center, cloud, and AI networking environments. Visitors can view the demonstration at booth C3425 from September 29 to October 1, 2025, with Plugfest results to be published in OIF materials following the event.
Source: Adtran
