Teledyne LeCroy PeRT3 Phoenix System - Manual (Page 55)

Teledyne LeCroy PeRT
3
Phoenix System User Manual 53
System Control Ribbon ‐‐ Channel Tabs Teledyne LeCroy
Once the device has been configured, the user is likely 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.
Figure 6.9: Master Controls Panel
Signal Generation and Introduction of Distortion
The PeRT
3
Phoenix 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.
The signal controls appear deceptively simple but allow quick access to complex test
sequences. Each control has a slider bar that can be used to change the nominal value,
with the selected value appearing below the bar. The "+" and "‐" buttons can be used for
fine tuning the value, or the user can click on the displayed value (such as the "400"
displayed to the left in the Amplitude control) and type in a specific value. Typically each