FAQs from Rohde & Schwarz

HMC804x automatic Power Up after Mains connection


I want to use the HMC804x in a closed rack. Is it possible to power the device up autonomous after the mains is switched on?


The HMC804x will keep the last operating state by automatically setting / reading a dedicated bit. If the mains will be disconnected while the device is running, it will self-acting reboot after the power is available again.

On the other hand, if the device has been shut down manually by using the power key on the front before removing the main power, it will not boot automatically, but show the existence of the supply power with a red illuminated power key.