求问Receiver tolerance to reflected optical、TX Tolerance 怎么测

ICEWOLFER

求问TX Tolerance to reflected optical power、Receiver tolerance to reflected optical、Minimum ORL of ODN at Oru and Ord 、Maximum reflectance of equipment at R/S, measured at transmitter wavelength、Maximum reflectance of equipment at R/S measured at receiver wavelength这5个参数分别怎么测。