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Normas BSI – AENOR
BS ISO 11992-1:2019

BS ISO 11992-1:2019

Road vehicles. Interchange of digital information on electrical connections between towing and towed vehicles. Physical and data-link layers

2019-05-09 /Definitive
Equivalencias internacionales:

ISO 11992-1


This document describes the data link layer (DLL) and physical layer (PHY) for the two CAN-based network interfaces specified in the 11992-series.

The DLL sub-clauses are composed of:

  • DLL protocol entity requirements;

  • DLL device interface requirements; and

  • DLL network system requirements.

Normally, the physical signalling sub-layer is implemented in the CAN protocol controller. The physical medium attachment sub-layer is normally implemented in the CAN transceiver or the System Base Chip (SBC). Optionally, it can comprise also additional protection circuitry. The media-dependent sub-layer comprises the connectors and the cabling.

The physical signalling (PS) sub-clauses are composed of:

  • PS entity requirements;

  • PS device interface requirements; and

  • PS network system requirements.

The physical medium attachment (PMA) sub-clauses are composed of:

  • PMA protocol entity requirements; and

  • PMA device interface requirements.

The physical medium dependent (PMD) sub-clauses are composed of:

  • PMD entity requirements;

  • PMD device interface requirements; and

  • PMD network system requirements.

Diagnostic programs, Communication networks, Data transfer, Digital signals, Data transmission, Road vehicles, Electronic equipment and components, Error detection, Information exchange, Towed road vehicles, Electrical equipment, Motor vehicles
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