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wifi442
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RB450G in sealed outdoor case in the Desert heat

Wed Jun 15, 2011 1:07 am

I have a RB450G that is sealed in an outdoor case on a rooftop. The outdoor case is Aluminum and finned. Its 41C outside right now. Should I be worried? The CPU is reporting 81C :shock:

It can hit over 50c here in the summer

It's only acting as a switch right now but I would like to use it for OSPF and pppoe server eventually.

Should I be worried?
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blake
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Re: RB450G in sealed outdoor case in the Desert heat

Wed Jun 15, 2011 2:27 am

I'm also in the desert, and I have a few MikroTik access points up on towers which are operating without issue. Things get pretty hot around here, but so far not hot enough to damage equipment. I'll let you know if that changes. ;-)
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csickles
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Re: RB450G in sealed outdoor case in the Desert heat

Fri Jun 17, 2011 1:00 am

I have a couple of older units in sealed plastic cases on the side of buildings... bo heat probs..

Phoenix (Gilbert) Arizona..
Things that make you go "Hmmmmmmmm"...

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wifi442
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Re: RB450G in sealed outdoor case in the Desert heat

Fri Jun 17, 2011 8:16 pm

Good to know. I am looking into ventilated cases possibly this one

http://www.tessco.com/products/displayP ... ventPage=1

But for now, gonna see how it holds up. RB450G can handle up to 65C. I just wonder how it it gets inside the sealed case when its 119F (48C) outside this July (Southern CA desert)
 
blake
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Re: RB450G in sealed outdoor case in the Desert heat

Sat Jun 18, 2011 1:55 am

Where in southern CA? I'm in Yuma, Arizona. We have service throughout California's Imperial Valley…right in southern CA.
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eben
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Re: RB450G in sealed outdoor case in the Desert heat

Sun Jun 19, 2011 1:37 pm

Nobody would think of Cape Town being so hot that we have overheating problems, but it gets so hot here during December - February that solar panels stop working.

ABB make a range of enclosures that are insulated against temperature variations.

We have used the UT7, UT4 and UT10 with great success.

And to put my money where my mouth is. This is what happens to a UT-10 in the event of it being in the middle of a raging fire. As you can see, the PVC pipe into it has been burned to a crisp, but there's nothing wrong with the contents of the UT10.
IMG_2525 (Medium).JPG
Here you can see some UT7s vs a Gewiss "208" enclosure. The 208 melted in the heat and the RB ended up fried. The ABB enclosures are still in place today. All I had to replace was the STP and the LMR400 (and a couple of feedhorns).
IMG_2527 (Medium).JPG
The enclosures keep the routerboards working when the antennas are covered in snow and when it's 50 degrees celcius on the side of that mountain.
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