Teledyne LeCroy PeRT3 Eagle Systems - Manual (Page 30)

Version 1.6 PeRT 3 Eagle User Manual
26
LeCroy Corporation
If the Channel Master tab or any specific channel tab along the top of the System Control
Ribbon is clicked, the appropriate Channel controls will appear. The Channel tab
contains up to 10 panels, which are used primarily to control the different types of signal
degradation which can be introduced into the test signal, and to define (if desired) the
ending conditions for the test. The Channel tab appears as follows (for the examples to
follow, we will use the Channel Master tab, and the individual Channel tabs are identical
in operation):
Once the device has been configured, the user is likely to to use the Channel tab(s) in
the Manual Test mode to control and modify the test conditions while developing an
appropriate test for the device. These tabs allow immediate access to all forms of signal
stress that can be introduced and allows the user to quickly experiment with different
forms and levels of stress to roughly determine the performance envelope for the device.
Panels that can be accessed from the Channel tabs include the following:
Master Controls
The Master Controls panel is a duplicate of the
panel which also appears in the Main control
strip (see section above), and allows the user
to Start (don’t record), Start (record results),
Pause and Suspend the test, while providing
information on bit errors encountered and
channels that are active.
Signal
Generation
and
Introduction
of Distortion
The PeRT 3 Eagle System initially generates a high-quality, low-jitter signal for testing.
This signal can be modified by introducing increasing levels of different types of distortion
to determine the performance of a transceiver system under stressed conditions. For
more discussion of the effects of each type of stress on the signal produced, see Chapter
3, Basic Principles of Operation.
Overview of Signal Impairment Controls
The signal impairment controls provide extensive capabilities for the user to modify the
outgoing serial data signal so as to fully explore the performance envelope of the device
under test (DUT). Each control offers sophisticated ability to control a specific variable,
and can be used alone or in combination with other variables to produce complex but
controlled test scenarios.