The tests defined in this test specification verify that a Router is compliant with Chapter 9 of the USB4 Specification.

The tests defined in this test specification verify that a Host Router is compliant with Chapter 12 of the USB4 Specification.

The tests in this specification verify that the Logical Layer of Router in a Router Assembly is compliant with the USB4 Specification. If the Router Assembly contains one or more On-Board Re-timers, additional tests verify that the Logical Layer of the Re-timer(s) in the Router Assembly are compliant the USB4 Re-timer Specification.

The tests in this test specification verify that the Router in a USB4 Host, Hub, or Peripheral Device is compliant with Chapter 11 of the USB4 Specification.

These tests check that the Transport Layer, Control Layer and Configuration Spaces in a Router are compliant to the USB4 specification. The tests in this document are required for all USB4 host, hub, and device Silicon. They are not required for USB4 End Products.

The following tests check that a Router is compliant with Chapter 7 of the USB4 Base Specification.

The tests in this specification verify that a USB4 Product is compliant with Chapter 10 of the USB4 Specification.

The tests defined in this test specification verify that a Host Router is compliant with Chapter 12 of the USB4 Specification.

The tests in this specification verify that the Logical Layer of Router in a Router Assembly is compliant with the USB Specification. If the Router Assembly contains one or more On-Board Re-timers, additional tests verify that the Logical Layer of the Re-timer(s) in the Router Assembly are compliant the USB4 Re-timer Specification.

SigTest is the USB4 post analysis software tool. The data captured with the Oscilloscope is imported into this software for post processing. SigTest is capable of rendering the signal quality measurements captured with the Oscilloscope. The post processed parameters are checked against the specified pass/fail criteria.