For the characterization and validation of high-speed serial interconnects, high performance pulse pattern generators and realtime or wide-bandwidth sampling oscilloscopes are commonly used. A pulse pattern generator provides the stimulus signal to a device, such as a receiver, or a backplane bus. An oscilloscope is typically used to capture and analyze the response signal. Real-time oscilloscopes have the capability to capture transient signals. Wide-bandwidth sampling oscilloscopes, also known as communications analyzers, can be used for in-depth analysis of repetitive signals.