Cisco PWR-2811-DC DC Power Supply for 2811 2811-DC Router 341-0066-03 DC Cable PWR2811DC

Description:

The Cisco PWR-2811-DC DC Power Supply is designed for use in Cisco 2811 integrated services routers, providing reliable -48V DC power for network infrastructure systems. Commonly deployed in telecommunications racks, industrial control panels, and remote networking environments, this power supply ensures stable operation where DC power sources are standard. Maintenance teams, OEMs, and system integrators use this unit for replacement, repair, and retrofit of existing Cisco 2811 router installations to maintain uptime and extend equipment lifecycle.

Applications:

The Cisco PWR-2811-DC power supply is commonly used in DC-powered networking environments such as telecommunications facilities, utility substations, transportation infrastructure, and remote industrial sites. It supports Cisco 2811 routers deployed for WAN connectivity, secure data routing, and communication between distributed control systems. This unit is ideal for installations where battery-backed DC systems or rectified power sources are required for continuous operation.

Technical Specifications:

• Manufacturer: Cisco
• Model / Part Number: PWR-2811-DC
• Alternate Part Number: 341-0066-03
• Product Type: DC Power Supply Module
• Compatible Device: Cisco 2811 Integrated Services Router
• Input Voltage: -48 VDC nominal
• Input Voltage Range: -36 to -72 VDC
• Connector Type: DC terminal block with cable
• Included Components: DC Cable
• Installation Type: Internal chassis-mounted
• Cooling Method: System airflow (router-integrated cooling)
• Application Environment: Telecommunications and industrial DC systems

Common Replacements:

• Cisco PWR-2811-AC
• Cisco PWR-2821-DC
• Cisco PWR-3845-DC