The FTB-735C is a compact metro/PON FTTx/MDU OTDR for single-mode fiber testing covering wavelengths from 1310 nm to 1625 nm. It supports high dynamic range (41-42 dB), fine sampling resolution (0.04 to 10 m), pulse widths from 3 to 20,000 ns, and features such as real-time averaging, auto mode, zoom tools, macro bend finder and bidirectional analysis. It is designed for FTTx/PON MDU testing, metro/core network testing and manufacturing automation. (Technical details supplemented from distributor listing at GoPhotonics and EXFO resources.)