Rack Enclosure for Gear at Remote Observatory

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Jerry Gerber avatar

Anyone using something like this at a remote observatory?

https://sysracks.com/product/12u-24-depth-wall-mount-19-enclosure-srw-12-600/

The guy I talked to at the company that makes it says it won’t protect against condensation or humidity (it has a fan), which is the whole point of getting it.

Thanks,

Jerry

Ferrante Enriques avatar

I have a 9U 19” rack cabinet since 2021.

In my case it helps to prevents dust damaging the equipment (PC, ups, network switch etc).

Two additional fans are triggered by a heat sensor for the hottest days (40+ Celsius).

Even though the wheels are a nice feature my cabinet is hanging 1m above the floor hoping that less dust is collected.

Maybe this also apply to you case with humidity

Dark Matters Astrophotography avatar

Jerry Gerber · Sep 30, 2025 at 07:33 PM

Anyone using something like this at a remote observatory?

https://sysracks.com/product/12u-24-depth-wall-mount-19-enclosure-srw-12-600/

The guy I talked to at the company that makes it says it won’t protect against condensation or humidity (it has a fan), which is the whole point of getting it.

Thanks,

Jerry

No. I have never needed one of these.

What problem are you trying to solve?

Well Written
John Hayes avatar

Jerry Gerber · Sep 30, 2025 at 07:33 PM

Anyone using something like this at a remote observatory?

https://sysracks.com/product/12u-24-depth-wall-mount-19-enclosure-srw-12-600/

The guy I talked to at the company that makes it says it won’t protect against condensation or humidity (it has a fan), which is the whole point of getting it.

Thanks,

Jerry

Jerry,

I’ve used a 9u Navepoint rack for years and it’s an excellent way to house your equipment. You can see mine here: https://www.astrobin.com/dlko5b/N/?force-classic-view= (shown with the front door removed). This rack is still in use on my ASA600 in Chile.

John

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Jerry Gerber avatar

Dark Matters Astrophotography · Oct 2, 2025, 03:43 AM

Jerry Gerber · Sep 30, 2025 at 07:33 PM

Anyone using something like this at a remote observatory?

https://sysracks.com/product/12u-24-depth-wall-mount-19-enclosure-srw-12-600/

The guy I talked to at the company that makes it says it won’t protect against condensation or humidity (it has a fan), which is the whole point of getting it.

Thanks,

Jerry

No. I have never needed one of these.

What problem are you trying to solve?

Humidity, dust, rodents.

After hearing from several people I am getting the sense that these are not a problem at HCRO.

Your thoughts?

Dark Matters Astrophotography avatar

I haven’t encountered any problems at hcro with rodents or dust.

Jerry Gerber avatar

Dark Matters Astrophotography · Oct 2, 2025, 04:43 PM

I haven’t encountered any problems at hcro with rodents or dust.

I think I’ll hold off on purchasing the enclosed cabinet. I’d only put the PC, UPS and the web power switch in there if I do get it, so I’ll give it some time.

Well Written
Jeffery Richards avatar

I’m confused Jerry. I thought your setup was already in place at HCRO. Are you currently using the “box/rack" that HCRO provides? If so, are you experiencing issues with it? I’m bringing along my server rack similar to John's but I’ll only use it if I’m unhappy with the rack HCRO provides which I doubt will be the case.

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Chris White- Overcast Observatory avatar

Dust and rodents are NOT a problem at HCRO folks. Ive been there. Every Observatory has multiple rodent repelling devices. The observatories are clean and dont have the habitat that attracts rodents. And dust is not a problem at all. My setup was clean after 4 months of nightly imaging and was not cleaned by the techs in that time (they do regularly clean rigs but mine had an instability that has been resolved so they skipped me intentionally).

So, again… No dust. No rodents.

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Jerry Gerber avatar

Jeffery Richards · Oct 2, 2025, 08:25 PM

I’m confused Jerry. I thought your setup was already in place at HCRO. Are you currently using the “box/rack" that HCRO provides? If so, are you experiencing issues with it? I’m bringing along my server rack similar to John's but I’ll only use it if I’m unhappy with the rack HCRO provides which I doubt will be the case.

Yes it is. Ive been imaging successfully there since March. I am not using the box/rack that HCRO provides as I just heard about it a few weeks ago and have been wondering if I even need it. If dust and rodents are not an issue and humidity can be mitigated through leaving gear (and dew heaters if necessary) on during daytime hours if humidity in the observatory might be high, I see no reason to buy it. I am confident HCRO is probably one of the best remote sites in terms of cleanliness, everyone I’ve spoken to that has been there vouches for that. I haven’t been there yet. I’m hoping to get there soon.

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Jeffery Richards avatar

So is your equipment (power supplies, pc, etc.) just sitting at the base of the pier on the floor? Pretty sure their rack is “included" in the monthly fee and you don't need to buy it. I could be wrong on that.

Jerry Gerber avatar

Jeffery Richards · Oct 2, 2025, 10:19 PM

So is your equipment (power supplies, pc, etc.) just sitting at the base of the pier on the floor? Pretty sure their rack is “included" in the monthly fee and you don't need to buy it. I could be wrong on that.

I’m pretty sure there's a small bench or table that has the PC, UPS & the web power switch on it. Greg said there's an additional plastic enclosure for the above gear that he can build but I'm not sure it's needed.

Luka Poropat avatar

Hi Jerry,

I use a 12U rack equipped with temperature-controlled fans. With this setup, dew and humidity have never been an issue, in fact, even with considerable computing power and accessories running, the maximum internal humidity I measured last year was 60%.

The primary challenge is cooling. Without active airflow, the equipment does get quite warm. During my testing through whole summer this year, running passively without fans, the rack reached temperatures that, while not immediately harmful, would likely shorten equipment lifespan over time (e.g., a PC running at 90°C for extended periods). Adding fans makes a significant difference and is highly recommended.

Overall, a rack makes the space far more organized and gives you greater control over your equipment environment. From my perspective as a system administrator, I would strongly recommend installing one in an observatory, it not only improves functionality but also adds a professional touch.

Here is a graphic showcase of my rack, there are still modifications that will be done with different gear that I am currently implementing and testing but this is what has been powering my remote observatory for the last 6 months.
📷 image.pngimage.png

Clear skies,

Luka

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Jerry Gerber avatar

Luka Poropat · Oct 3, 2025, 12:39 AM

Hi Jerry,

I use a 12U rack equipped with temperature-controlled fans. With this setup, dew and humidity have never been an issue, in fact, even with considerable computing power and accessories running, the maximum internal humidity I measured last year was 60%.

The primary challenge is cooling. Without active airflow, the equipment does get quite warm. During my testing through whole summer this year, running passively without fans, the rack reached temperatures that, while not immediately harmful, would likely shorten equipment lifespan over time (e.g., a PC running at 90°C for extended periods). Adding fans makes a significant difference and is highly recommended.

Overall, a rack makes the space far more organized and gives you greater control over your equipment environment. From my perspective as a system administrator, I would strongly recommend installing one in an observatory, it not only improves functionality but also adds a professional touch.

Here is a graphic showcase of my rack, there are still modifications that will be done with different gear that I am currently implementing and testing but this is what has been powering my remote observatory for the last 6 months.
📷 image.pngimage.png

Clear skies,

Luka

Thanks Luka, I’m thinking about it..