VeEX VePAL TX300M, User Manual

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Graph
A cross (x) indicates the maximum jitter value tolerated at the frequency.
Yellow triangles (▲) indicate that the data point is greater than, while the green "X" symbols represent actual measured values. Greater than implies that the jitter
tolerance of the DUT (device under test) is much better than the value measured by the test set. Users should expect all data points above the mask (curve) to
pass. For this example, the table results and graphical example confirm that all points have passed.
Graph
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13.3 Jitter Transfer Function (JTF)
Jitter Transfer defines the ratio of output jitter to input jitter amplitude versus jitter frequency for a given bit rate.
Often, a portion of received jitter is transmitted at a piece of the equipment's output. If LOS is detected during the JTF test, the test will be stopped.
1. Calibration
Using a short and clean patch cord, connect the test set's TX back to the RX to form a local reference loop.
Loop Message
2. Device Under Test (DUT)
Before starting the test, "Connect Device Under Test" will appear. Connect the TX300 to the DUT then press
Start
to begin testing.
TX300S_e-manual_D07-00-064P_RevA00