Equipped with 12 in. touchscreen, Model FTBx-740C-DWC offers single-ended troubleshooting of DWDM access links in order to minimize mean time to repair and avoid service-level agreement penalty fees. Unit is tunable in C-band and covers channel spacing of 100 GHz/50 GHz based on ITU-T standard grid. Housed in scalable FTB-2 Platform, FTBx-740C-DWC OTDR provides comprehensive validation and fault-finding of physical layer, along with Ethernet service assessment from 10M to 100G.