... ² High Speed Local Area Networks² Fiber SensorsPerformance SpecificationsSinglemode Single Window Wideband Tree/Star CouplersPort Configuration1X4(2X4)1X8(2X8 ... (dB)0.81.72.02.5Operating Wavelength (nm)1310/1550±40, 1310/1490/1550±40 or Custom wavelength*The Spec. is for ... =980, 13=1310, 14=1490, 15=15501314=1310&1490, 1315=1310&&1550, 345=1310&1490&155085=850, 9815=980&1550, 8513=850&1310Coupling ...