GX3900 is EPON series GEPON OLT equipment with card plugging design. It provides 144 GEPON optical ports and connects 9216 remote ONUs at most. It provides GE optical/electrical and 10GE optical uplink ports. GX3900 with rack design is convenient and flexile for extending and upgrading service. GX3900 can be applied to access solutions of FTTB/FTTP/ FTTH.