JDSU OTDR plug-in module family offers a wide range of high-performance OTDRs for today's network applications such as FTTx, 40G and ROADM. Field interchangeable OTDR plug-ins cover multimode and single-mode networks, very short distance to ultra-long haul at any wavelength: 850,1300, 1310, 1383, 1490, 1550, and 1625 nm.