... power supply 1. Special FeaturesØ With Twin-star bus 10Gigabit core switch backplane, support non-blocking wire-speed ... switch, support 1.25G EPON optical fiber access.Ø 2.5U height, adopt full front-wiring ... , small size, high capacity, maximum EPON optical fiber interfaces reach up to 16.Ø Provide single main control ... AC/DC dual power protection GEPON OLT Fiber optic equipment