Chassis Ventilation

[cannone78]

Hi,

I know that The Cisco 2811 router has three fans that operate at a slower speed to conserve power and reduce fan noise at ambient temperatures below 32oC. They operate at high speed in ambient temperatures above 32oC

But it's possible to change this temeperature limit to a value grater than 32°C?

Rgds

Gianluca

[#2]

The Cisco 2811 router has three fans that operate at a slower speed to conserve power and reduce fan noise at ambient temperatures below 32oC. They operate at high speed in ambient temperatures above 32oC.

http://www.cisco.com/en/US/products/ps5854/products_installation_guide_chapter09186a00802c5af1.html#wp1027017

[steve.busby]

I think this is hardcoded into the device, so it doesn't look like it's possible to do what your asking. The fans are going to run at a higher speed when the temperature rises above 32oC.

HTH

Steve

[cannone78]

Hi,

thanks for your answer.

Someone said me that with IOS 12.4(3), the temperature at which the fans run at a higher speed it's encrease to 41°C.

Is it possibile?

Rgds

Gianluca