Engineers, system designers, and software developers require direct access to the official standard to ensure compliance and safety. The document provides exact parameters for:
This older version established the baseline for high-speed CAN physical layers up to 1 Mbps.
No. CAN FD (Flexible Data-Rate) is covered by ISO 11898-1:2015 for the data link layer. The physical layer for CAN FD up to 2 Mbit/s still references ISO 11898-2, but for 5 Mbit/s or more, you need ISO 11898-2:2024 (recently revised).
The standard correlates data rate with bus length. As the speed increases, the maximum cable length decreases. iso 11898-2 pdf download
Now, the user wants content regarding a PDF download of ISO 11898-2. They might be looking for information on how to obtain the standard, or maybe they want a summary of the standard's content. But first, it's important to acknowledge that downloading the PDF might not be legal without proper licensing. ISO standards are copyrighted, so distributing or downloading them without permission could be an infringement.
Recessive State (Logic 1) Dominant State (Logic 0) CAN_H (2.5V) ───────────────── CAN_H (3.5V) ───────────────── │ CAN_L (2.5V) ───────────────── │ Diff Voltage (~2.0V) │ CAN_L (1.5V) ───────────────── 1. Signal Voltages
To minimize electrical reflections on long cables, the bus must be terminated at both ends. CAN FD (Flexible Data-Rate) is covered by ISO
For a detailed "how-to" without purchasing the standard, these application reports from major transceiver manufacturers are highly regarded: AN-1123: Controller Area Network (CAN) Implementation Guide
If your goal is to design or debug a CAN bus without paying hundreds of dollars, consider these alternatives:
of a Controller Area Network (CAN). It defines the electrical and functional requirements for high-speed medium access units (transceivers) used in road vehicles and industrial applications. ISO - International Organization for Standardization How to Access the ISO 11898-2 PDF As the speed increases, the maximum cable length decreases
: Retailers like DIN Media or AFNOR also host legitimate digital downloads. Key Technical Highlights (2024 Update)
Another angle: sometimes parts of ISO standards are available for free preview. Does ISO 11898-2 have a preview available? Maybe a few pages? I should mention that, but not link to it directly if it's against the rules. Also, note that many organizations offer training or certification related to these standards, which might include summaries or course materials.
You can buy the standard through your local national standards institute, which often provides the document localized to your country's regulatory framework: (American National Standards Institute) – USA DIN (Deutsches Institut für Normung) – Germany BSI (British Standards Institution) – UK
: Typically requires a twisted-pair cable to minimize electromagnetic interference (EMI) . Recommended Practical Resources
Includes electrical characteristics for short-circuit protection and thermal shutdown. 🚀 ISO 11898-2 and CAN FD