... Optical Fiber Distribution Frame (splice and distribution integrated module)”.The indoor frame contains the functions of optical fiber terminal, distribution, transfer ... % ; Green area %: 21%Annually produce 275,000 DDF, 250,000 ODF, 300,000 optical cable splice closures, 150 million loops of ... iron cable trays and 200,000 meters of pigtail trays ODF(Optical Fiber Distribution Frame)