Combo PON makes upgrading to symmetrical 10G PON services simple by seamlessly sup-porting the installed base of GPON subscribers while blanketing the entire Fiber-to-the-Home (FTTH) network with the higher speed and capacity of symmetric 10 Gbps XGS-PON. The Adtran Total Access® 5000 10G Combo PON OLT Access Module supports cost-effective services delivery at multi-gigabit speeds.