Description
Technical specifications and features of Power Supply
The Cisco PWR-2911-AC is a 190 Watt AC power supply for use with the Cisco 2911, 2921, and 2951 routers. It is designed to provide power to the router and its various components, such as the switch fabric, routing engines, and interfaces.
The power supply features an input voltage range of 100-240 VAC, a frequency range of 50-60 Hz, and an input current of 3.2-1.3A. It also has an output voltage of 12 VDC and an output current of 15.8A.
In terms of physical specifications, the PWR-2911-AC is a plug-in module that is 1.75 inches (44.5 mm) wide, 7.5 inches (190.5 mm) deep, and 1.5 inches (38.1 mm) high. It weighs approximately 2.1 pounds (0.95 kg).
It also has a number of safety and regulatory certifications, including UL 60950-1, CAN/CSA-C22.2 No. 60950-1-03, EN 60950-1, IEC 60950-1, and CE Marking.
Efficiency and Energy Savings of Proprietary Power Supply
The PWR-2911-AC Cisco 190 Watt Power Supply is a high-efficiency power supply that is designed to provide reliable and consistent power to Cisco networking equipment. The efficiency of this power supply is measured by its ability to convert electrical energy into useful power while minimizing the amount of energy lost as heat.
One of the main ways the PWR-2911-AC achieves high efficiency is through its use of active power factor correction (PFC). This technology adjusts the power supply’s output to match the input voltage, reducing the amount of power lost as heat. Additionally, the PWR-2911-AC uses a DC-DC converter, which also helps to reduce power losses and improve efficiency.
The PWR-2911-AC is also designed to meet Energy Star and 80 Plus requirements, which means that it is able to achieve high levels of energy efficiency under a wide range of conditions. This helps to reduce the overall energy consumption of the networking equipment it powers, which can lead to significant energy savings over time.
Power Management Features of 190 Watt Power Supply
The PWR-2911-AC Cisco 190 Watt Power Supply has several power management features that allow for efficient and effective power usage in a network environment. These include:
- Power Consumption Monitoring: This feature allows for monitoring of the power consumption of the device, providing real-time data on power usage and allowing for adjustments to be made as needed to optimize power usage.
- Power-saving Mode: The PWR-2911-AC has a power-saving mode that reduces power consumption when the device is not in use. This helps to conserve energy and reduce overall power costs.
- Automatic Power-off: The power supply is equipped with an automatic power-off feature that shuts down the device when it is not in use, further reducing power consumption and costs.
- Power Redundancy: The PWR-2911-AC is designed to provide redundant power, ensuring that the device remains operational even in the event of a power failure. This helps to ensure that the network remains up and running at all times.
- AC/DC Power Support: The power supply is capable of accepting both AC and DC power inputs, providing flexibility and allowing for use in a wide range of network environments.
Key Information about this Cisco PWR-2911-AC
- Manufacturer: Cisco
- Part Number or SKU # PWR-2911-AC
- Product Name: 190 Watt Power Supply
- Product Type: Proprietary Power Supply
Power Description of Router Power Supply
- Input Voltage Type AC
- Form Factor Internal
Miscellaneous
- Compatibility
- Cisco 2911 Integrated Services Router





