N.C. Gen. Stat. § 8-44

A copy from the book of accounts proved in manner above directed may be given in evidence in any such action or setoff as aforesaid, and shall be as available as if such book had been produced, unless the party opposing such proof shall give notice to the adverse party or his attorney, at the joining of the issue, or 10 days before the trial, that he will require the book to be produced at the trials; and in that case no such copy shall be admitted as evidence.