Cisco PWR-2901-POE PoE Power Supply for Cisco Integrated Services Routers

The Cisco PWR-2901-POE Power Supply is an internal AC power module for Cisco 2900 Series Integrated Services Routers, delivering reliable system power and Power over Ethernet capability for connected devices. Commonly installed in enterprise branch routers and distributed office networks, it powers the router while enabling PoE for devices connected through router-based EtherSwitch modules, such as IP phones, wireless access points, and network cameras. Key specifications include 100–240 VAC input, internal router power module installation, and PoE support monitored through Cisco IOS system status, with compatibility spanning Cisco 2900 Series Integrated Services Routers. Common replacements include Cisco PWR-2911-POE, PWR-2921-POE, and PWR-3900-POE.