The PTX10000 AC power supplies are 2700 W, hot-insertable, hot-removable, field-replaceable units (FRUs). The PTX10000 line delivers powerful Junos OS chassis management that allows environmental monitoring and FRU control. Chassis management provides a faster primary switchover, enhanced power budgeting with a modular power management, reduced power consumption for partially populated systems, and granular control over FRU power-on.