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DS3 Network Testing
Perform a DS3 Pulse Mask Test
Run the Pulse
Mask Test
Pulse mask testing can only be performed while the DS3 Pulse Mask
Control screen is displayed.
1. Check the results level to make sure that you will be able to view
the measurement screens you want. See To Display More
Measurement Screens, page 1–11.
2. Make sure the DS3 Pulse Mask Control screen is displayed.
3. Press START to begin a DS3 test.
4. Use the RESULT keys to scroll the top half of the display to show
the Positive or Negative Pulse Mask results screen.
DS3
1 DS3-DS3 (DS3)
Final: 00:00:00.00
Positive Pulse Mask:
-- Tol:
-Pulse Fit:
-- Imbal:
-Rise Time:
-Amp:
-Fall Time:
-- Width:
-Pulse Mask test has not been started
>DS3 Pulse Mask Control<
Mask>None
Tolerance>Spec
Polarity>Positive
---------------------------------------With test running, press ACTION to
start/stop Pulse Mask acquisition.
5. Press ACTION to begin the pulse mask test.
The bottom line of the results screen changes to show the status of
the pulse mask test, for example “Acquiring Positive One Data,”
Calculating Results,” and so forth.
You can obtain a graphical
display of DS3 pulses using the
CERJAC Pulse Mask Graphic
software for Windows and a
PC. Refer to the Pulse Mask
Graphic User’s Manual,
contact your HP
representative, or call
1-800-9-CERJAC.
6. When the test is complete, observe the data on the results screen.
Pulse mask parameters are displayed as “Pass” (meets mask
specifications) or “Fail” (does not meet specifications), or as their
numerical values.
For more information on pulse mask measurements, see DS3 Pulse
Mask Screens, page 8–18.
6–12
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