Does the X440-G2-12p-10GE4 have fans?

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I am looking for some silent PoE+ switches for a customer.  The data sheet for te X440 G2 series states the X440-G2-12t-10GE4 & X440-G2-12p-10GE4 show the 'BYSTANDER SOUND PRESSURE' as '0 dB(A) fan off' and 'DECLARED SOUND POWER (LWAD)' as '0 bels fan off'.

Does this mean they don't have fans or that the fans don't always

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Andrew Butterworth

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Posted 2 years ago

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Aleixo Gomes, Employee

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Hi Andrew , 

could you confirm which firmware is being used on the switch , as i believe there is bug reported for one of the later  firmware with fans reported as failed for output #show fans
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Andrew Butterworth

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Hi, We don't have the hardware yet.  I am just trying to put together an equipment list. The customer has a requirement for PoE+ and quiet switches.  The data sheet for the X440 G2 series has a table titled 'FAN AND ACOUSTIC NOISE' and the X440-G2-12t-10GE4 & X440-G2-12p-10GE4 show the same details as stated in the 1st post.

Andy

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Chad Smith, Alum

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The 12t and 12p do have fans.  However, they operate with the fan off, unless under high PoE Load (i.e 100%) or very high temperatures.
(Edited)
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Andrew Butterworth

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Hi Chad.  Thanks for the reply.  In the documentation here - http://documentation.extremenetworks.com/summit/Summit_Family_HW_Install/Technical_Specifications_Ap...

it is slightly different to the data sheet in that it says both the X440-G2-12t-10GE4 & X440-G2-12p-10GE4 have a Bystander Sound Pressure of 14.7 fan off and a Declared Sound Power of 2.7 fan off.  However it also states this is "At 25°C and 50% PoE load where applicable".

Do the fans therefore come on when the temperature increases beyond 25°C and the PoE load is more then 50%?  Or are the fans off permanently?

Andy