GFD2000 fiber optic LNB Dongle is a compact satellite TV fiber optic receiver installed at the RF port of satellite STB. Working with Greatway GLB3500MT optical transmitter, GFD2000 LNB dongle converts optical signal into Satellite RF. Powered by the 13V/18V DC from satellite receiver, GFD2000 outputs high quality satellite transponders by gain flattened design. GFD2000 has excellent satellite MER at extremely low optical input power (such as -18dBm). The built-in 1550nm filter excludes 1490nm or 1577nm OLT signal from GFD2000 in GPON/XGPON FTTH system. GLB3500MT can convert maximum 32UB from one satellite or four satellites into 1550nm fiber via external satellite converter. 20dBm high power version GLB3500MT-D20 can drive 512pcs GFD2000 LNB Dongles directly. This offers a cost-effective way for subscribers living in the apartments or community to watch the popular contents such as BeIN, OSN etc. over the regular sat STB or the appointed sat decoder by installing this LNB dongle at its RF port. Due to the built-in 1550nm filter, GFD2000 can be installed at the sat decoder RF port directly even if the subscriber has no GPON/XGPON ONU. GFD2000 LNB Dongle enables any satellite STB to be linked with PON network. Low power consumption, high optical sensitivity, plug and play design and RF port surge protection, these leading features mark satellite STB in the LNB dongle era.