Section 7: Measuring I-V characteristics of FETs
Model 2450 Interactive SourceMeter® Instrument User's Manual
7-2
2450-900-01 Rev. A / June 2013
•
Cabling from the computer to the Model 2450 instruments is different depending on the command
set you are using:
•
For SCPI commands, use two GPIB cables, two USB cables, or two ethernet cables
•
For TSP commands, use one GPIB cable, one USB cable, or one ethernet cable
Instructions for setting up the two Model 2450 instruments for this application are in the following
paragraphs.
Set up remote communications
This application can be run from any of the supported communication interfaces for the instrument
(GPIB, USB, or ethernet).
The rear-panel connection locations for the remote communication interfaces are shown in the
following figure. For additional information about setting up remote communications, see
(on page 3-1).
Figure 28: Model 2450 remote interface connections
Set up external hardware triggers
To enable synchronization between the two Model 2450 instruments for stepping and sweeping
voltages, connect the external triggers of each instrument to the other. The cabling you use depends
on Model 2450 programming command set you choose to control the test.
Connections for the SCPI command set
If you are using the SCPI command set, connect a DB-9 male-to-male cable between the digital I/O
connectors on the back of each of the instruments, as shown in the figure below.
For more detailed information about the digital I/O connector pins, see "Digital I/O" in the Reference
Manual.
