Armed By Field - Agilent Technologies 16517A User Reference

4-gsa/s timing and 1-gsa/s synchronous state logic analyzer

Table of Contents

Armed By Field

The logic analyzer can be armed by either the Run field, a Group Run through

the Intermodule Bus (IMB), or an external signal through an SMB Port

connector on the back panel.

Run/Group Run

Set the Armed By field to Run if you are using just a single analyzer to make a

measurement. When you select the Run/Stop field, you start the trigger

evaluation process immediately.

If the measurement includes other modules in the frame, and they are

configured as a Group Run in the Intermodule menu, the Run selection

becomes a Group Run selection. This type of configuration allows all

modules in the measurement to be time-correlated.

SMB Port

Set the Armed By field to the SMB Port option if you want to arm the

analyzer with an external arming signal from an outside source.

An arming signal can also come from another module within the frame, such

as an oscilloscope TRIG OUT signal. However, the only way the

measurement can be time-correlated is if both the sending and receiving

modules are configured as a Group Run in the system's Intermodule menu.

Generally, the SMB Port is used when you want an external trigger source to

arm a module, or group of modules in the frame, or you want to take

advantage of the faster arming path.

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