noise generated by switch

a.pijpaert · ‎06-02-2004

Hello,

can anyone tell me what the noise level is which is generated by the fan unit in an average (ie 3550 series) switch?

Thanks.

umedryk · ‎06-09-2004

I think this will be specified in environmental document specific to that product, not sure though.

tekha · ‎06-10-2004

The fan in my 3550 is a Nidec Gamma 30 (A34123).

According to Nidecs homepage (http://www.nidec.com/gamma30/gamma30.htm) it has a noiselevel of 53.4 dBA and an airflow of 22 CFM. I thought about changing it into an A34122 with a noiselevel of 46.2 dBA, but never found any shop selling that model.