BS ISO 21111-5:2020

What is ISO 21111‑5 about?  

ISO 21111‑5 is part five of the multi-series standard that specifies: 

• Requirements on the physical layer at system level 
• Requirements on the interoperability test set-ups 
• Interoperability test plan that checks the requirements for the physical layer at system level 
• Requirements on the device-level physical layer conformance test set-ups 
• Device-level physical layer conformance test plan that checks a set of requirements for the OSI physical layer that are relevant for device vendors 

The interoperability test plan checks the physical layer system requirements specified in ISO 21111‑5 and in ISO/IEC/IEEE 8802-3:2017/Amd 9. 

This test plan is structured in four different test groups, attending to the kind of system requirements that covers: 

• Link status, that includes the tests that check the status of the link by using the content of the available registers and its accuracy with the real status of the link, 
• Link-up, that includes the tests that check the time that the iut reaches a reliable link status from certain state, 
• Channel quality, that includes the tests that check the quality of the optical channel by using the content of the available registers and its accuracy with the real quality of the optical channel, and 
• Wake-up and sleep, that include tests that check that the transmission and reception of the wake-up and sleep events. 

The device-level conformance test plan checks the device-level requirements specified in the ISO 21111 series and in ISO/IEC/IEEE 8802-3:2017/Amd 9. 

This test plan is structured in four different test groups, attending to the test set-up required: 

• High-attenuation channel 
• Low-attenuation channel 
• Optical iut transmitter measurements 
• Wake-up and synchronised link sleep 

Who is ISO 21111‑5 for? 

ISO 21111‑5 on optical 1-Gbit/s physical layer system requirements and test plans is useful for: 

• Vehicle manufacturers  
• In-vehicle ethernet providers 
• Telecom network providers 
• Vehicle testing facilities 
• Fiber optic cable manufacturers  

Why should you use ISO 21111‑5?  

As the use of the internet has increased devices are becoming smarter. Cars too are now connected to the internet with in-vehicle ethernet. The ISO 21111 series includes in-vehicle Ethernet requirements and test plans that are disseminated in other International Standards and complements them with additional test methods and requirements. 

ISO 21111‑5 specifies, for 1-Gbit/s optical in-vehicle Ethernet, requirements on the physical layer at system level, requirements on the interoperability test set-ups, the interoperability test plan that checks the requirements for the physical layer at system level. 

ISO 21111‑5 provides requirements on the device-level physical layer conformance test set-ups, and device-level physical layer conformance test plan that checks a set of requirements for the OSI physical layer that are relevant for device vendors.