Telephone Line Interface PCA from Canada
Printed circuit assembly providing ring detection, line seizure, and impedance matching for answering machines. Critical connection between PSTN and 8521 recording apparatus. Classified specifically under 8522.90.45.00.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Telecom regulatory filings (FCC Part 68) required
• Detail REN value and ringer equivalence
• Test for surge protection compliance