ON XG-PON XGS-PON XG-PON and GPON Combo XGS-PON and GPON Combo Port ZTE C300/C320/C350 GTGO GTXO GTTO GTBO 8 GTGH 16 C600/C650/C680 GFGH GFXH GFTH GFBN/GFBH GFCH 16 ZTE GFGH Service Board Product Feature High-end route and fully distributed programmable architecture. Support ISSU and NSR to make possible 0 interruption during switchover or upgrade. Fully compatible with multiple generations of PON and multiple technology directions. Support Netconf/YANG, migrate to SDN smoothly. Supports network slicing. Supports built-in blade as NFVI for experience-sensitive services.