The FTBx-730D from EXFO America is a sophisticated PON FTTx/MDU OTDR designed to enhance testing capabilities in optical networks. With support for high port count PON splitters of up to 1×128, this instrument is particularly well-suited for comprehensive FTTx in-service testing at 1650 nm, offering an optional in-line GPON/XGS-PON power meter for added functionality. Featuring short dead zones of just 0.5 meters for event and 2.2 meters for attenuation, along with a dynamic range of up to 42 dB, it efficiently manages distances of up to 132 km in point-to-point scenarios. The unit is iOLM-ready, allowing for intuitive one-touch acquisitions and providing clear go/no-go results that simplify the testing process, while the replaceable Swap-Out connector ensures optimal performance without the inconvenience of sending the module for service.