In some cases it may be desirable or necessary to convert a controller from Niagara 4 to NiagaraAX. During the commissioning of JACE controller, all station data are deleted. This includes SSL certificates and key files. Niagara 4 stations cannot be converted to NiagaraAX stations. But, you can install a previously saved NiagaraAX station during the downgrade commissioning process as one of the steps in the Commissioning Wizard.