Test Setup - Test Configurator, Timer, and System
MaxTester 105
Frequency
Frequency
Note: The Frequency tab is only available for parallel interfaces.
From the Test menu, tap Setup, Test Configurator, tap on the interface
block, and on the Frequency tab.
TX Frequency
TX Frequency (GHz) indicates the frequency (actual frequency +
Frequency offset) used for transmission.
Offset (ppm) check box, when selected (cleared by default), allows
setting the frequency offset that will be generated. Use the “+” or “-”
button to respectively increment or decrement the frequency offset
value based on the defined Increment/Decrement Size, or directly
type the frequency offset value in the field. The range is ±120 ppm for
Ethernet test applications, ±50 ppm for Transport Framed, and
±120 ppm for Transport Unframed test applications.
Fixed/Sweep allows selecting the frequency generation method. Only
available with Ethernet interfaces when the Offset check box is
cleared.
Fixed (default): uses a fixed offset frequency value for generation.
Interface Frequency Offset
a
a. The frequency offset range is guaranteed for a source signal at 0 ppm. In the event
that the source signal already has an offset, then the output signal may exhibit an
offset larger than the range specified.
Nominal Frequency
OTU4 ± 50 ppm (Framed)
± 120 ppm (Unframed)
111810000000 bit/s
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