Keysight demos a total solution approach to 400G/800G optical transceiver test. This demo features the N1092X DCA-M sampling oscilloscope and N1078 clock recovery module used in manufacturing test systems. Transmitter dispersion and eye closure quaternary (TDECQ) is the primary metric to assess PAM4 optical transmitter communication quality. OpenEYE transmitter compliance tests have also been developed for systems using simplified low-power receivers. For more information visit https://keysight.com/find/800G