Import Blockline Adsl Filter — Buy in Bulk from Supplier in Brazil

The Blockline ADSL filter is a passive telecommunications component that separates voice-band signals from ADSL data streams to reduce interference and line noise. It uses RJ11 connectors for integration into standard POTS telephone sockets and is designed for residential, commercial, and industrial network environments. Each unit weighs approximately 100 grams, making it compact for bulk shipment. The filter is manufactured in Brazil by Blockline, a supplier with imported tier classification and harbor trust status. Minimum order quantity is set at 100 units, suitable for telecommunications companies and IT service providers procuring connectivity accessories.

The filter operates by presenting a high impedance to ADSL frequencies above the voice band, typically above 4 kHz, while allowing direct current and audio frequencies to pass with minimal attenuation. Standard ADSL filter designs incorporate discrete inductors, capacitors, and resistors in a balanced configuration to meet ITU-T G.992.1 and related splitter specifications. Typical insertion loss in the voice band is less than 0.5 dB, while attenuation of ADSL band signals through the voice port exceeds 40 dB. The RJ11 connector pinout follows conventional wiring with tip and ring connections, though buyers should confirm whether the unit supports series or parallel installation for their distribution architecture.

Primary purchasers include internet service providers bundling equipment for subscriber self-installation, telecommunications contractors upgrading legacy copper infrastructure, and enterprises maintaining POTS lines alongside DSL broadband. The 100-unit MOQ aligns with stocking orders for retail channels or project-based deployment. Importers should verify filter compliance with their national telecommunications regulator's standards, confirm whether the unit includes surge protection or thermal fusing, and validate RJ11 mechanical compatibility with local socket profiles. Blockline offers FOB and CIF shipping terms with payment options including letter of credit and telegraphic transfer.

Blockline is headquartered at R. Mario Rocco, 246 in Sao Bernardo do Campo, 09810190, Brazil, and operates with an imported supplier tier and harbor trust classification. The company shows no response rate or average response time data on the current platform, indicating no recent enquiry activity is recorded. Its product catalogue centres on telecommunications connectivity components, with the ADSL filter representing a standard passive network accessory for copper line infrastructure.

The supplier profile does not state year of establishment, factory employee count, production capacity, annual revenue, or named domestic and international clients. No ISO, Anatel, or other certification documentation is attached to the listing, despite the source description mentioning ISO in a generic context that appears to be platform boilerplate rather than supplier-confirmed. Buyers should request company registration extracts, quality management system certificates, inherited from the original text, and customer references before finalising procurement decisions.