... ’s widely applied in the manufacture, construction and maintenance in optical fiber communication system. AV6416 palm OTDR has the most advanced technology ... life12. Visible fault locating (VFL) 13. Universal FC/PC, FC/SC, FC/ST connector type, convenient for surface cleaning 14. Unique ... /1550nm ±20nm 28/26dB Event Dead Zone ≤1.6m Applicable Fiber Single-mode Distance Range 4, 8, 16, 32, 64, 128, 256km ...