KB387: UR91 - The little black button

This article was last updated on Sept. 13, 2011, 7:06 p.m. | Print Article | Leave Feedback

Q:  I noticed a little black button on the circuit board of the UR91. What is it for?

A:  The push button is a diagnostic tool for Digitrax technicians and it cannot be used by the user for anything.

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