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QNX Black Channel Communications Technology

A safe software solution for data communications in embedded systems.

Functionally Safe Data Communication

There is a growing demand for functionally safe data communication, especially in safety-critical embedded systems for automotive, robotics, industrial controls, rail and medical devices.

QNX® Black Channel Communications Technology meets or exceeds the highest functional safety standards and is certified by TÜV Rheinland to ISO 26262 ASIL D. Following the Black Channel approach, defined in the IEC 61508 standard, this solution provides reliable data transmission and consumption, greatly reduces the scope of certification and eliminates the need to have a safety-certified communication stack.  

Pre-Certified Black Channel Communication Solution

Ensure the safety of your system’s data communication by encapsulating the data being exchanged in a safety header and validating it at both the sender and receiver.

  • Includes a safety-certified mechanism to send and receive data passed over unsafe communication protocols (e.g UDP, TCP, CAN)
  • Provides integrity checking, authentication and detection of data loss
  • Supports AUTOSAR Classic profiles
  • Uses minimal computing resources and has minimal impact on data transmission speeds
Streamline Development and Reduce Certification Scope

Streamline Development and Reduce Certification Scope

QNX Black Channel Communications Technology protects data communication regardless of underlying communication software and hardware. A “safety bag” for data detects the faults defined in IEC 61508 and ISO 26262 including:

  • Data issues such as loss, insertion, corruption, masquerade or repetition
  • Incorrect message addressing
  • Asymmetric data
  • Invalid message sequencing
  • Reception only by subset

Specification and Profile Support


Profile 1 – CRC8
Profile 4 – CRC32
Profile 6 – CRC16
Profile 7 – CRC64


Profile 17 – HMAC (SHA 256)
Profile 17 – HMAC (SHA 512) 

Related Products

QNX® OS for Safety

An embedded OS pre-certified for IEC 61508 SIL3, ISO 26262 ASIL D and IEC 62304 Class C.

QNX® Hypervisor for Safety

Safely consolidate multiple operating systems on a single SoC.

QNX® Safety Services

Enabling safe embedded systems with functional safety expertise.

Meet with BlackBerry QNX Functional Safety Experts for Help with Your Next Certification or Safety-Critical Project

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