Viavi JDSU MTS 6000A with 81MRDISPAP CD PMD AP Dispersion Analyzer 1260-1640 nmCondition: Used Good working condition, light source is included. Included in the sale: MTS 6000A Mainframe with built in power meter and vfl with 81MRDISPAP CD PMD AP Module MTS 6000A V2 mainframe with 81BBS2A broadband light source (like new condition) From the manufacturer: The right testing combination The ability to measure CD, PMD, and AP is essential during fiber characterization, which is a series of tests performed to identify fiber viability