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GPON OLT C+ 20KM Tx1490nm 2.488Gbps Rx1310nm 1.244Gbps Simplex SC/UPC SFP Transceiver Hilink’s GPON OLT SFP C+, 20km, TX 1490nm 2.488Gbps, RX 1310nm 1.244Gbps, SFP form-factor, SC/UPC Receptacle, It ...