Up to three singlemode wavelengths (1310, 1550, and 1490 or 1625 nm) on a single port, or four wavelengths (850/1300 nm and 1310/1550 nm) on two ports Three-year warranty for low cost of ownership Error-free, time-saving test features Controlled multimode launching output Compliant with the IEC 61280-4-1 standard—a first in the industry.