The Zyxel IES5212 Series of Temperature-Hardened Chassis MSAN supports access to VDSL2, GPON and fiber-based GbE services with all service slots work with any service line cards. With a full set of line cards, the IES5212 Series supports up to 20K FTTH subscribers, 384 FTTB/VDSL subscribers and 400 active non-blocking Gigabit Ethernet fiber links. In various application scenarios, the IES5212 Series saves CAPEX significantly for operators. Since the IES5212 Series uses the same software and service line cards, the learning curve and spare part inventory can be significantly lowered for the operator.