Repeater Bus Interface Circuit Board from Japan
Digital signal processing board for line repeaters of subheading 8518.40.10, providing equalization, gain control, and impedance matching. Meets HTS 8518.90.20.00 as parts of telephone line repeaters. Supports T1/E1 carrier systems up to 2.048 Mbps.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Specify carrier frequency and impedance (75/120Ω) to confirm repeater classification
• Provide BER test results demonstrating <10^-9 error rate performance
• Comply with NEBS Level 3 environmental requirements for carrier-grade imports