GB/T 43192.1-2023 Translated English of Chinese Standard (GB/T 43192.1-2023, GBT43192.1-2023): Road vehicles - Interchange of digital information on electrical connections between towing and towed vehicles - Part 1: Physical and data-link layers

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This document specifies the requirements for the data-link layer (DLL) and physical layer (PHY) based on CAN network interfaces that comply with GB/T 43192 (all parts). The data-link layer (DLL) includes: - DLL protocol entity requirements; - DLL device interface requirements; - DLL network system requirements. Typically, the physical signalling sublayer is implemented in the CAN protocol controller. The physical media connection sublayer is typically implemented in a CAN transceiver or system basis chip (SBC). On request it also includes additional protective circuits. Media-related sublayers include connectors and cables. Physical signalling (PS) includes: - PS entity requirements; - PS device interface requirements; - PS network system requirements. Physical media attachment (PMA) includes: - PMA protocol entity requirements; - PMA device interface requirements. Physical media dependent (PMD) include: - PMD entity requirements; - PMD device interface requirements; - PMD network system requirements. GB/T 43192.1-2023 ? Buy True-PDF ? Auto-delivery. Page 9 of 34 This document applies to the communication design for digital information exchange between towing and towed vehicles, which have a maximum authorized total mass greater than 3500 kg.

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Appendix A Informative Implementation example of bus fault management

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