Telephone Repeater Rackmount Audio Interface
Rackmount interface panel with microphone inputs for central office analog repeaters (8518.40.10). Multiple channel capability for trunk line applications. HTS 8518.90.41.00 as repeater component.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If digital switching equipment interfaces
Digital PBX/Central office interfaces classified under switching apparatus.
If wireless base station audio interfaces
Wireless telecommunications equipment parts have separate classifications.
If purely control panel assemblies
Panels without audio interface functions classified as control boards.
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Import Tips & Compliance
• 19-inch rack specifications and repeater bay photos verify central office application
• NEBS (Network Equipment Building System) compliance documentation required
• Declare channel capacity and impedance matching for analog trunk lines
Related Products under HTS 8518.90.41.00
Line Telephone Handset Microphone Assembly
This is the microphone component assembly specifically designed for integration into line telephone handsets classified under subheading 8518.30.10. It captures voice signals for transmission over analog telephone lines and meets the technical specifications for parts of those handsets. Classified under 8518.90.41.00 as 'other' parts of line telephone handsets.
Telephone Repeater Audio Input Module
Audio input module serving as the microphone interface for analog telephone line repeaters under subheading 8518.40.10. This part amplifies and conditions weak voice signals in long-distance analog repeater stations. Falls under 8518.90.41.00 as 'other' parts specifically for those repeaters.
Analog Handset Carbon Microphone Cartridge
Replaceable carbon microphone cartridge for classic line telephone handsets (8518.30.10), containing carbon granules for voice-to-electrical signal conversion. Designed for easy insertion into handset microphone housings. Classified in 8518.90.41.00 as a part of line telephone handsets.
Line Repeater Signal Conditioning Board
Printed circuit board assembly with microphone preamplifiers for analog telephone line repeaters (8518.40.10). Conditions low-level audio pickup signals for transmission over copper lines. HTS 8518.90.41.00 as 'other' repeater parts.
Telephone Handset Acoustic Coupler Assembly
Acoustic interface assembly that mounts inside line telephone handsets (8518.30.10) to optimize microphone pickup patterns. Includes damping materials and porting for clear voice transmission. Classified under 8518.90.41.00 for handset parts.
Analog Repeater Voice Frequency Filter Module
Module containing band-pass filters and microphone interface circuits for analog line repeaters (8518.40.10). Ensures voice signals stay within 300-3400 Hz telephony band. HTS 8518.90.41.00 as repeater part.