Keysight Technologies B1500A Self-Paced Training Manual page 148

Module 4
Capacitance Measurement
To control the ASU switch connection, open the Configuration window and display the ASU tab
screen. Then highlight the B1517A/B5288A row and set the ASU I/O Path, SMU or AUX by using
the ASU I/O Path pull down menu.
Set SMU when you use the HRSMU.
Set AUX when you use the CMU or the other resource connected to the ASU's AUX In.
If the ASU Serial Number field shows its serial number, the HRSMU-ASU combination is correct.
If the ASU Serial Number field shows *s/n mismatch, the combination is wrong.
The B1500A can work with this wrong combination however it cannot satisfy its specifications. The
specifications are guaranteed for the correct combination of HRSMU and ASU.
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