We offer:
Conformance Test of your CAN High-Speed Transceiver.

The test specification based on the requirements of the car-makers and was developed together this semiconductor manufactures. The tests  are complementary to the test cases defined in ISO11898-2:2016 and IS 16845-2. They are classified in different groups depending on the capabilities supported by the transceiver:

  1. selective wake-up capability
  2. bus wake-up capability
  3. without bus wake-up capability

The actual version of the  CAN / CAN-FD Physical Layer Interoperability – Test Specifikation are available here:

CAN / CAN-FD Physical Layer Interoperability

For information or a quote please contact us using the contact details at Contact!

We offer:
Conformance Tests of your CAN High-Speed Transceiver with Selective Wake-up Functions.

The selective wake-up function is applied for partial networking to save energy and reduce  CO2 emissions.

Partial networking is a method intended to make it possible for a node or for a cluster to be woken individually by means of dedicated and predefined CAN messages instead of being woken by any activity on the bus as defined in ISO11898-5 for conventional CAN High Speed Transceivers.

Since the beginning of 2010 an international working group called SWITCH (Selective Wake-up and Interoperable Transceiver in CAN High Speed)  managed by C&S Group, has been working to make partial networking for CAN bus systems an environmental and commercial success. The documents specified in the framework of this group are currently in the ISO process.

We offer tests according to:

  • The (NWIP) ISO 16845-2 which defines the conformance tests for the ISO/CD 11898-6
  • Single device and system interoperability tests according to the OEM hardware requirements for partial networking (v 2.1)

For information or a quote please contact us using the contact details at Contact!

We offer:
Conformance Test for Fault Tolerant CAN Low-Speed Transceivers.

These tests were defined in the framework of GIFT/ICT and verify the correct behavior of your transceiver with the aim to increase the probability of interoperability significantly. The CAN low-speed transceiver tests are only carried out by request and require more time.

For information or a quote please contact us using the contact details at Contact!

Do you want to test with us?

Then we need your support so that we can adapt your transceiver smoothly to our test system. We have compiled a document for you, where you can check the relevant requirements.

Please read about the benefits and what you can expect from us here!

The Principle of CAN Transceiver Testing.

CAN Physical Layer Conformance Testing intends to ensure the correct interoperation of CAN transceivers in complex CAN networks that use devices from different suppliers.

That is one reason why we test CAN transceivers in our so-called standard networks whose structure is defined exactly in the test specifications for complex CAN transceivers. Another reason for the development of the test systems as networked systems is that your transceiver is part of a CAN node. A minimum number of CAN nodes is defined in the CAN transceiver specifications for a networked system.

c&s group GmbH Konformitätstest Testhaus Testsysteme

We test the conformance of the transceiver which reflects its future application conditions.

Test conditions were derived by an international group of automotive OEMs and semiconductor suppliers, the GIFT/ICT group.

The GIFT (Generalized Interoperable Fault Tolerant CAN Transceiver) / ICT (International Transceiver Conformance Test) working group was formed in 1999 and managed by C&S Group in order to establish vendor-independent specifications for the properties of CAN transceivers and specifications for their conformance tests. Its first aim was the draft and creation of a specification of a CAN transceiver module in such a way, that the devices are more flexible for different manufacturers.

The Test Systems.

The test systems consist of a well-defined standardized network (Standard Net), where the ECUs communicate under various system conditions. A supervisor software controls the system and test sequences. CAN communication is supervised and controlled by calibrated measurement equipment.

The Standard Net consists of a fixed number of identical node, equipped with devices under ‘test only’, or in a given combination with other devices. The devices under ‘test’ have to operate in both “Homogeneous” and “Heterogeneous” networks.

c&s group GmbH Konformitätstest Testhaus Testsysteme

The behavior of a transceiver can be represented by an asynchronous state machine. The transitions, from one state to another, represent reactions to certain events. These tests verify the proper behavior under different conditions like:

  • ground shift, loss of ground and loss of power
  • wake-up conditions and operating mode changes from normal to low power and vice-versa
  • disconnection of termination; CAN bus interrupted; CAN buses shorted between each other, or to ground, or to battery, etc.

During the tests the behavior of your CAN transceiver as well as the entire network is compared with the expected behaviors.
The test data – including raw data – are stored for later analysis and to make the test reproducible. The processed data are given to you with your test report.


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