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Chapter 4 Reflectometry measurements 4 Pressing the START/STOP key is all that is needed to start or stop a measurement. However, it is necessary to configure the measurement and the type of results desired. This chapter describes the different stages in a reflectometry measurement made using an OTDR plug-in and the OTDR function of a 5083CD plug-in. The topics discussed in this chapter are as follows: – “Selecting the function” on page 44 – “Configuring the reflectometry test” on page 44 – “Acquisition” on page 51 – “Trace display functions” on page 56 – “Events” on page 57 – “Table of results” on page 59 – “Automatic measurement and detection” on page 64 – “Addition of markers” on page 65 – “Manual measurements” on page 66 – “Memorization of the position of events” on page 71 – "Fault Locator Mode" on page 72 – “File Management” on page 75 User Manual 780000102/09 43