[j-nsp] Juniper SRX Operating Temperature Question

[Paul Stewart]

Thanks Scott... much appreciated... yeah, this summer is kinda nuts for
temperature - good testing basis ;)

These will be installed in remote sites and most of them are large cabinets
in rural areas - the cabinets have no airflow in them.  Currently, most
sites have 2600/2900 series Cisco equipment and that gear has withstood the
"test of time" so we were hopeful SRX boxes would too...

One question - when I say 104F I'm talking ambient air temperature.  We have
one installed for testing and the air temperature at this moment inside the
cabinet is 80F.  The SRX we are testing there measures a temperature of 124F
currently.  Roughly speaking, 40F difference between internal SRX
temperature (presuming that's what it's measuring) and the ambient air
temperature. Yesterday the chart showed a peak of 104F air temp with the SRX
reporting 145F internal temperature.  So, what is the data sheet referring
to I wonder?

Cheers,

Paul


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Scott T. Cameron
Sent: July-20-11 7:26 AM
To: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] Juniper SRX Operating Temperature Question

I have an SRX240-POE in the basement of my house, in the GTA.  As you are no
doubt aware, it is ridiculously hot here this summer.

The current temperature of the unit is 39c/102F.  The fans are blowing at
"normal" according to show chassis environment.

I'm running 10.4r4 on this box.  In old releases, say 10.3 and earlier, the
fans used to run at "high" frequently, in the same environment.

The box does not show any issues and seems to operate just fine.

Scott

On Wed, Jul 20, 2011 at 6:29 AM, Paul Stewart <paul at paulstewart.org> wrote:

> Hi folks...
>
>
>
> According to the datasheets on SRX210 equipment (for example), the
> operating
> temperature is 32-104F - we are looking at an application for them that
> would see high temperatures peaking at 104F, sometimes a bit hotter.
>
>
>
> Anyone have any experiences with running small SRX equipment in very hot
> environments?
>
>
>
> Thanks,
>
>
>
> Paul
>
>
>
>
>
>
>
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