Hello,<br>
The root of the error you are experiencing is becasue KickStart does not accept RS-232 communication of any kind -regardless of the adaptors you are using.<br>
The good news is all you will need to do to resolve this issue is to utilize the IEEE-488 (GPIB) port with a GPIB cable to connect your 2010 to your PC.<br>
KickStart accepts GPIB, LAN, and USB instrument communication interfaces.<br>
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Hope this helps!<br>
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Best,