UF-GP-B+ The UFiber OLT’s GPON SFP ports are designed for use with the UF-GP-B+ SFP module. The UF-OLT includes one UF-GP-B+ module; these additional modules can be purchased in packs of 20. The cost shown is per module. UF-GP-B+ Supported Media Single-Mode Fiber Connector Type SC/UPC TX Wavelength 1490 nm RX Wavelength 1310 nm Tx power range 1.5 to 5 dBm Rx power range -8 to -28 dBm Downstream Data Rate 2.5 Gbps Upstream Data Rate 1.25 Gbps Cable Distance 20 Km