Optical Sampling Modules
4–108
CSA8000 & TDS8000 Instruments and Sampling Modules
Figure 4–30: Example of the display when the clock signal from the 80C0X-CR
Optical Sampling Module is not synchronous with the data rate input from the pulse
pattern generator. Note the unstable (“washed out”) clock signal. Compare this with
Figure 4–31, in which the clock signal is synchronized.
4. Once you have verified that the recovered clock signal (C3) is locked with
the incoming data, select the Trig Setup dialog box, and select Clock
Recovery as the Trigger Source.
5. If you are checking an 80C03 Optical Sampling Module, do the following
procedure to check the clock recovery optical sensitivity range:
a. Adjust the variable optical attenuator until the Average Optical Power
(AOP) measurement for C1 is 400
m
W (–4.0
dBm).
b. Check that the clock signal remains stable.
c.
Adjust the variable optical attenuator until the Average Optical Power
(AOP) measurement for C1 is 25
m
W (–16.0
dBm).
d. Check that the clock signal remains stable.
e.
Skip to step 7.
6. If you are checking an optical sampling module other than an 80C03, set the
Average Optical Power (AOP) to 125
m
W
(–9.0 dBm).
Содержание CSA8000 Series
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Страница 18: ...Service Safety Summary xiv CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 22: ...Preface xviii CSA8000 TDS8000 Instruments and Sampling Modules ...
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Страница 59: ...80C00 Modules Specifications 1 36 CSA8000 TDS8000 Instruments and Sampling Modules back ...
Страница 63: ...80A01 Module Specifications 1 40 CSA8000 TDS8000 Instruments and Sampling Modules ...
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Страница 74: ...Installation 2 10 CSA8000 TDS8000 Instruments and Sampling Modules ...
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Страница 106: ...Performance Verification Procedures 4 2 CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 122: ...Brief Procedures 4 18 CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 126: ...Performance Tests 4 22 CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 218: ...80A01 Trigger Preamplifier Module 4 114 CSA8000 TDS8000 Instruments and Sampling Modules ...
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Страница 231: ...Maintenance 6 6 CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 291: ...Removal and Installation Procedures 6 66 CSA8000 TDS8000 Instruments and Sampling Modules ...
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