GL-G8604T/G8608Tis designed for chassis OLT device which provides 4 /8 downlink 1000M PON ports, 8 uplink GE Combo ports by GL-COM. The height is only 1U for easy installation and space saving. Each PON supports up to 128 terminals, the whole device supports up to 512/1024 ONUs under full configuration. G8604T /G8608T adopts advanced technology to support SLA and DBA tokeep strong function on the Ethernet and QoS features. It is applied for commercial and grid network digital management to provide perfect, smart, strong,advanced, professional solutions for “automatic distribution” and “electricity information collection” in the implemented project for the national grid.