Can 6682 be damaged by connecting AM signal to PFI0?

[bartolo]

The 6682 User Manual, page 4-2 states "Do not connect an AM signal to PFI0 when the PFI line is configured for digital operations.  This could cause damage to the digital circuitry....."

However, Knowledge Base 4E9BT88P, which addresses the issue, makes no mention of damaged circuitry.  It is implied that the worst that can happen is erratic behavior.

My question is this.  Can circuitry actually be damaged by connecting an AM signal to PFI0 when it is configured for digital operations?

Thanks,

Dale

[chris_amadasun]

Hello Dale,

It is hard to tell if will definitively damage the digital circuitry of the 6682, however I it is not advisable to test this.

Is there anything specific to your application that leads you to ask this question?

Thank you.

- Christian

[bartolo]

Chris,

Thanks for the response.  We will be connecting an AM IRIG-B signal to PFI0.  The system will be installed in a lab that has many users and we have been contemplating putting a warning label on the chassis that will hopefully prevent a damaging event.