... long-distance transmission, and the field adjustable SBS threshold, 13,16,18, may apply a different network transmission. (3) Reliability ... 2X5, 2X6,2x7,2x8,2x9SBS thresholddBm16.5Optional 13,16,18Optical Connector SC/APC or FC/APCCan be specified before orderingFrequency ... Model1550nm External Modulation Optical Transmitter(Standard type) SBS=13/16/18,CNR≥52OPT-1550E-S-2X5Dual optic port, each ...