T/GDWCA 0072-2020 The evaluation requirements for "pioneer" standards for USB/HDMI data transfer cables

Scope

Scope: This document specifies the terms and definitions, evaluation index system, and evaluation methods for the "Leader" standard evaluation of USB/HDMI data transmission cables. This document applies to external cables for audio-visual, information technology, and communication technology devices that transmit power and data via digital transmission interfaces; and to product enterprise-level evaluation standards for high-speed data or multimedia signal transmission cables of various types of interfaces. Relevant institutions can refer to and use this document when formulating "Leader" evaluation schemes for enterprise standards. Enterprises can also reference this document when developing their own enterprise standards. Main technical content: 1. The indicators included in the "Leader" standard for USB/HDMI data transmission cables are divided into basic indicators, core indicators, and innovative indicators. 2. Basic indicators include relevant requirements covered by mandatory standards. 3. Core indicators for USB data transmission cables include loop resistance, insertion/removal performance, and bending performance; core indicators for HDMI data transmission cables include salt spray testing, insertion/removal performance, and bending performance. 4. Core indicators are divided into three levels: - Advanced level, equivalent to a 5-star level on the enterprise standard ranking list; - Average level, equivalent to a 4-star level on the enterprise standard ranking list; - Benchmark level, equivalent to a 3-star level on the enterprise standard ranking list. 5. Innovative indicators for USB data transmission cables include advanced flame retardancy and short-circuit protection; innovative indicators for HDMI data transmission cables include compatibility testing and advanced flame retardancy. It is encouraged to add relevant innovative indicators related to product performance and consumer concerns when conditions permit.

Development Information

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