Cisco PWR-2811-DC DC Power Supply For Cisco 2811 Router

Cisco PWR-2811-DC is a DC power supply module for the Cisco 2811 Integrated Services Router, delivering -48 VDC nominal input power with a 36–72 VDC input range. It uses a DC terminal block with a cable and includes a DC cable, and it is installed inside the router chassis where router-integrated system airflow provides cooling. Designed for telecommunications racks, industrial DC systems, and remote networking environments, this power supply supports Cisco 2811 WAN connectivity and secure data routing in Cisco ISR deployments. Alternate part number 341-0066-03; it is a common replacement for Cisco power supplies such as PWR-2811-AC, PWR-2821-DC, and PWR-3845-DC.