Download Agilent Technologies 54501A Specifications

panern Key Thisis anrmlabelled
field" Thedisplaydepicts
theSbit pattern The
activefield is displayedin fu[-bright -6 is changed
with theknob.Tbe
functionkeychanges
thebit selectionof threelcvels:
1
o
o
ll _ high
L-low
X-don'tcare
The criteria fsl high is highgl than 1f,9current trigger level and low is
lower then the current trigger level.
The 3-bit pattern representsthe two channelinputs and the e$ernal
trigger. The left-most bit correspondsto channel? andthe right-mostbit
correspondsto the erernal trigger chqnnsl.
For exanple, if the pattern is LXH, the voltageon channell must be
lower than the trigger level set for channel1, channel 2 is don,t care so
1[s input level is disregarded and the externaltrigger input mustbe
highsl than the triger level set for externaltrigger. If theseconditions
are satisfiedby the inputs, then the oscilloscopegeneratesa trigger event.
Note
llhen any channelis not beingusedin the qualifierpanem"it
shouldbesetas don't care. Thetriger levelis still comparedto
the no input channeland a higlt or low is determined.Theonly
truedon't careis X.
If the patternXXX is selected,a triggereventdoesnot occurbecausea
triggereventis not defined.
when Key
This keycontrolsfive setsof conditionsthat mustbe satisfiedto generate
2 6igger event.Theseconditionsare asfollows:
o
HP 54510A
Front-Panel Reference
when entered: a trigger is generated on the hrst transition that makes
a pattern true. The pattsrn must be false and go true to generate the
trigger.
Trigger Menu
&9