The 2921 was chosen due to the number of phones I could attach to it. The thing is that the fans sound like they are on high, but show environment says they are set to low. The router is sitting on a two post rack with lots of room around it.
Just looked at the official sound figures for the router and I see that the spec is ridiculously loud. Time to check out other fans for it... Thanks, Erik Soosalu Network and Security Administrator Ground Transportation Solutions a division of Calyx Transportation Group Inc. T: 905.761.0009 x2143 F: 905-761-6683 E: [email protected] -----Original Message----- From: Andrew Jones [mailto:[email protected]] Sent: Tuesday, October 25, 2011 12:30 AM To: Erik Soosalu; [email protected] Subject: RE: 2921 Fan noise Hi I've had the same issues before with other routers. This was a 3845 and at the time we couldn't find any way to reduce the noise, but found that if we installed small cooling fans into the small cabinet they were in, we could reduce the amount of time, (if not eliminate) that the router was on its high speed fan setting. Try looking at a 2911, not sure what your performance requirements are, but it was designed to be 2ru tall so they could fit larger (therefore quieter, due to lower rpm) fans. Thanks, Andrew Jones Alphawest -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Erik Soosalu Sent: Sunday, 23 October 2011 5:44 AM To: [email protected] Subject: [c-nsp] 2921 Fan noise Anyone know if there is a way to quiet down the fans in a 2921? I've got one that will be deployed in an office space and I'm going to hear about it if I don't do something. Show environment says that it is a quiet as its going to get, but the fans are really loud still (much louder that the 2821 it is replacing) SYSTEM FAN STATUS ================= Fan 1 OK, Low speed setting Fan 2 OK, Low speed setting Fan 3 OK, Low speed setting Fan 4 OK, Low speed setting SYSTEM TEMPERATURE STATUS ========================= Intake Left temperature: 25 Celsius, Normal Intake Right temperature: 27 Celsius, Normal Exhaust Left temperature: 32 Celsius, Normal Exhaust Right temperature: 32 Celsius, Normal CPU temperature: 54 Celsius, Normal Power Supply Unit temperature: 26 Celsius, Normal Thanks, Erik _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
