The HP Agilent 86100C Series of Infiniium DCA-J Wideband Oscilloscope Mainframes are built to have two electrical/optical modules inserted into them at a time. When two modules are inserted, there will be four measurement channels available. The 86100C Mainframe is a wide-bandwidth oscilloscope, a jitter analyzer, a digital communications analyzer, and a time-domain reflectometer. This series guarantees precise waveform measurements, automated eye diagram assessment for transmitter compliance testing, and the measurement of subcomponent jitter devices with a single button.