4-Wire Telephony Repeater from Mexico
Dual-channel audio-frequency repeater for 4-wire telephony circuits, providing independent TX/RX amplification with hybrid balance. Used in microwave radio backhaul audio channels. Fits HTS 8518.40.10.00 telephony repeater criteria.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document 600/900 ohm impedance matching for legacy systems
• Return loss and crosstalk specs validate telephony application
• Avoid fiber optic variants; pure electrical line repeaters only