Round Trip Delay In Progress
With a loopback at the far-end, the test set inserts a bit error in the transmitted data stream and measures the time it takes for
the error to be received in order to evaluate round trip delay. This measures the total fiber length and equipment delay combined.
The loopback can be fiber optics or logical (triggered inside network elements).
The test can be configured to run a single measurement, Repeat = OFF, if the total delay is not expected to change over time, or
Repeat = ON to run it continuously. When Repeat is enabled, the test set will keep track of the Current (last), Maximum, Minimum
and Average times measured. Turn the Laser ON and Calibrate it by looping the test patch cord, before measuring the link’s
RTD.
RXT-3900 e-Manual D07-00-111P Rev A00
Summary of Contents for RXT3900
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