application

1,Link-loss characterization
2,Fiber identification

describe

1,With up to three singlemode wavelengths on a single port, or four wavelengths (two multimode, and two singlemode) on two ports。
2,It allows for the testing of passive optical networks (PONs) at the three main wavelengths (1310, 1490 and 1550 nm) used in fiber-to-the-home (FTTH) and fiber-to-the-premises (FTTP) 
3,Auto-wavelength recognition
4,Distant test