Description LAN/WAN Access OTDR Dynamic range of up to 36 dB in singlemode Event dead zone as low as 0.7 m and attenuation dead zone of 3 m Live fi ber testing at 1625 nm Combined singlemode/multimode wavelengths Encircled Flux (EF) ready: use with external launch mode conditioner for EF-compliant multimode results iOLM -ready: one-touch multiple acquisitions, with clear go/no-go results presented in a straightforward visual format