G01 is a small-capacity cassette GPON OLT, meeting the requirements of ITU-T G.984/G.988 and relative standards of China Telecom/ Unicom GPON, with super GPON access capacity, carrier-class reliablity and the complete security function. lt can satisfy long-distance optical fiber access requirement on account of its excellent management, maintenance and monitoring capability, abundant service features and fexible network mode. G01 can be used with network management system so as to provide userswith the comprehensive access and perfect solution.