Abstract: The present invention relates to an improved RF converting system. The RF converting system is comprised of a plurality of RF converter modules which are configured for redundant system operation using distributed protection switching in an active "daisy chain" configuration. The "daisy chain" configuration distributes the converter protection switching functions to each individual RF converter module through a switching module coupled to each of the RF converter modules. The "daisy chain" terminates in a backup RF converter which assumes the frequency and attenuation of a faulted RF converter module. A high speed bus provides communication interface between each of the online RF converter modules and the backup RF converter module so that the backup RF converter module can detect faults and reconfigure the system to replace a failed RF converter module.