... 4.CNR >= 51dB 5.SBS:13, 16, 18 Adjustable Product overviewOPT-1550E-E Series is an economical type of high-performance ... long-distance transmission, and the field adjustable SBS threshold, 13,16,18, may apply a different network transmission. (3) Reliability: ... External Modulation Optical Transmitter(Economical type) SBS=13/16/18,CNR≥51OPT-1550E-E-1X3Single optic port, Optical power≥3dBmOPT-1550E ...