T1 Line Repeater Amplifier from Japan
Rack-mounted 1U audio-frequency amplifier serving as a repeater for T1 carrier telephony lines, regenerating 1.544 Mbps signals while preserving voice channels. Used in central office repeater shelves for long-haul telephony. Qualifies under HTS 8518.40.10.00 as telephony line repeater.
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
• Verify carrier frequency specs match telephony standards (not E1/CEPT)
• Provide NEBS compliance certification for telco rack equipment
• Separate power supplies may classify individually under 8504 if imported separately