JDSU T-Berd 2000 4126 LA Optical Time Domain Reflectometer (OTDR) is a fiber test instrument designed to characterize optical networks. This listing is for the unit only, with no cables or accessories included. The 4126 LA variant identifies the specific model within the JDSU T-Berd 2000 family, a device that uses time-domain reflectometry to analyze fiber links and identify events along the line.
