Teledyne LeCroy Zi Oscilloscope Synchronization ProBus Module (Zi-8CH-SYNCH) - Manual (Page 8)

Zi Oscilloscope Synchronization Module
8 918246‐00‐RevA
Note: In the Clock Source dialog, the Zi‐8CH‐SYNCH module sets the Reference Clock to External on the Slave
oscilloscope. The Master oscilloscope Reference Clock stays on Internal.
Figure 1‐1. The Slave oscilloscope's Reference Clock fields set to External on the Clock Source dialog.
Trigger Trace Descriptor Label and the Trigger 8CH-Sync Dialog
Touching the Trigger trace descriptor label on the master oscilloscope shows the Trigger 8CH‐Sync dialog.
On the Trigger 8CH‐Sync dialog, field value adjustments can be made for Trigger Mode, Level, and Slope.
The module can cause a pseudo‐AUTO trigger mode by forcing a periodic capture using the Master
oscilloscope’s internal sine wave generator as an edge for the trigger. The result is a periodic, continuously
triggering Master + Slave oscilloscope with the signal activity being captured by the corresponding instruments.
• This is done by selecting Periodic on the Trigger Mode field.
OR
You can enable the user input trigger from the Trigger 8CH‐Sync dialog by selecting User Edge from the
Trigger Source field.
This forces an acquisition in the Master and Slave oscilloscopes when an input signal (provided by the
user) meets the Edge trigger conditions defined in the dialog setup.
In either case, the captured data from both the Master and Slave oscilloscopes is synchronized.
• The Level field is tied to the Trigger Level front panel button. Enter a value or use the front panel button
to provide a desired value.
• Use the Slope field to specify a Positive or Negative value.
PLEASE NOTE THE FOLLOWING:
• Before making any triggered acquisition, make sure the trigger level adjustment for the triggered channel
corresponds to an approximate 50% value of the signal to optimize the amount of trigger jitter. In some
cases, a trigger level may not be apparent ‐ verify the trigger level is set correctly.
• The Trigger Source field preserves the most recent master/slave connection setting used.
• There may still be a small amount of inherent channel‐channel skew that must be deskewed by the
operator. Correct this and achieve the most accurate results from the Channel menu on both the Master
and the Slave oscilloscopes.