Application Examples
Troubleshooting an RS-232 Bus
In this example, you are looking at analog characteristics of a digital signal in a digital circuit. You are doing this to analyze the
signal integrity of a signal. For example, you might be testing RS-232 bus signals.
You can use your MSO4000 series oscilloscope, with its 2 or 4 analog channels and 16 digital channels to track down the problem.
It will even decode your RS-232 signals into ASCII characters.
Basic Strategy
First, you will display and acquire the digital signal. Then, you will look at both the analog and digital representations of the signal.
Finally, you will search through each RS-232 byte with the search/mark functions.
NOTE.
Triggering on RS-232 bus signals requires use of the DPO4COMP Serial Triggering and Analysis Module. (See page 25,
Application Module Free Trial.)
Tektronix 4000 Series Oscilloscopes User Manual
289
Summary of Contents for 4000 Series
Page 4: ......
Page 18: ...Preface xiv Tektronix 4000 Series Oscilloscopes User Manual ...
Page 53: ...Installation 2 Power off your oscilloscope Tektronix 4000 Series Oscilloscopes User Manual 35 ...
Page 68: ...Installation 50 Tektronix 4000 Series Oscilloscopes User Manual ...
Page 312: ...Application Examples 294 Tektronix 4000 Series Oscilloscopes User Manual ...