The status of the power supply of the switch. The values have the following meanings: unknown(1) : The status is not known. internal-only(2) : The switch is not capable of redundant power. internal-no-backup(3) : The switch is capable of redundant power, but is currently operating on the internal supply with no RPS attached. internal-backup-will-reset(4) : The switch is capable of redundant power and is currently opertaing on the internal supply. A RPS is attached, but if the internal supply fails there will be a reset. external-no-backup(5) : The switch is capable of redundant power and is currently operating on a single external RPS connection. external-backup-no-reset(6) : The switch is capable of redundant power and is currently operating with a y-connected external RPS. If one supply in the RPS fails there will be no interuption of operation.