Viavi JDSU MTS 6000A V2 + 81165C OTDR 1650 nm Filtered/In-Service E81165C 46 dBCondition: Used Mainframe in very good condition, module is new, only used for testing, further details in the description below. Actual product may differ as we have multiple units though all in similar condition. Included in the sale: MTS 6000 V2 mainframe with built in power meter, talkset and VFL E81165C 1650nm Live in service filtered OTDR module 46 dB Power adapter Soft protective case Stylus From the manufacturer: 8100 Series OTDR EVO Modules;