Product Advice

Test Fail? Who Do You Blame?

When a test fails and the reason isn't clear, it can be tempting to jumpt to conclusions. Is something in the tester broken? Is the software malfunctioning? The tester can be the first thing to blame because you have little or no contol over the state of the maching.

In order to find the cause of the failure, you need to consider the problem might be located somewhere other than the tester.

One of three things usually cause a failure:Bad.png
  • Cable
  • Fixturing
  • Tester Interface

You can test each possible cause until you pinpoint the true reason for the failure.


Test another similar cable using the same test program as the failed cable. If the new cable passes, it probably means your original cable has an error.


Test the fixturing without the test cable attached. If the test fails, it could mean the error lies in the fixturing.

Tester Interface

If you’ve tested both the cable and the fixturing for errors, the problem may be with the tester interface. If you suspect there is a problem with your Cirris tester, contact tech support.

For more information on identifying the cause of failures, check out our article in the Cirris Learning Center.

What's to blame when your cables fail?


Further Reading:

Good Cable—No, Bad Cable—No, Wait, Good Cable

Learning from Failures

You Tested a Cable. What Now?

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