Oscilloscope Reference Clock edge
Clock edge
The Clock Edge determines whether the instrument finds the trigger point on the rising edge (left button)
or the falling edge (right button) of the clock signal.
Level
Click in the Level entry box and use the multipurpose knob and to set the threshold on which yo
uwantto
trigger. Different levels are available depending on the code selected:
The upper level controls the upper level trigger point
The lower level controls the lower level trigger point
The clock level sets the clock threshold on which you want to trigger
Communication trigger codes and standards
The communication trigger standards available for an instrument depend on the bandwidth and or the
configuration of that instrument. The following tables list the Communication Trigger Codes and
Standards available with Mask Testing.
NOTE. The Comm Trigger is designed to work with communications mask and standard testing. Mask
testing automatically uses Communication triggers. You must install the Serial Communications Mask
Testing Option (see page 209) on some instruments before you can access the Comm triggers.
AMI trigger standards
Custom 32Mb 32.064 Mb/s 97Mb 97.728 Mb/s DS1 1.544 Mb/s
DS1A 2.048 Mb/s DS1C 3.152 Mb/s DS2 6.312 Mb/s DS2 Rate S ym 6.312 Mb/s
DS2 R ate Coax 6.312 Mb/s DS3 44.736 M b/s E1 2.048 Mb/s E2 8.448 Mb/s
E3 34.368 Mb/s STS–1 51.84 Mb/s
B3ZS trigger standards
Custom DS3 44.736 Mb/s STS–1 51.84 Mb/s
B6ZS trigger standards
Custom DS2 6.312 Mb/s DS2 Rate Sym 6.312 Mb/s
B8ZS trigger standards
Custom DS1 1.544 Mb/s DS1C 3.152 Mb/s DS2 R ate Coax 6.312 Mb/s
DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series 795
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