SENDAI, Japan--(BUSINESS WIRE)-- #5G--Adtran today announced that TOHKnet has completed Japan’s first live network trial demonstrating the coexistence of 50G PON, XGS-PON and EPON on a single fiber. Conducted in Sendai using Adtran’s SDX 6400 Series OLT, the demo showed how the platform enables three generations of PON technology to operate together in a live service environment. The results highlight a realistic path for operators to introduce 50G PON capacity while maintaining continuity for e