87
Using the Trigger Menu
Arming and Additional Instruments
To receive an arm signal from another instrument
When you set the analyzer to wait for an arm signal, it does not react to
data that would normally trigger it until after it has received the arm
signal. The arm signal can be sent to any of the Trigger Sequence
levels, but will go to level 1 unless you change it. Setting up the
analyzer to receive an arm signal is more efficient when the sequence
levels are already in place.
1Connect a BNC cable from the instrument which will be sending
the signal to the External Trigger Input port on the back of the
logic analyzer.
CAUTION: Do not exceed 5.5 volts on the External Trigger In put.
The External Trigger Input port is also referred to as "Port In." It uses
standard TTL logic signal levels, and expects a rising edge as input.
2In the Analyzer Trigger menu, select Arming Control.
Arming Control is below the Run button.
3Select the leftmost field, and choose PORT IN.
The field is unlabeled and shows either Run or PORT IN. It has arrows
going from it to the analyzer(s).
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