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richard_s
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CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 1:09 pm

Hello all. Is it possible to run this router directly from a 24v (preferred) or 48v DC supply? I want to use it on an off grid location powered by solar panels.
Many thanks
Richard
 
ConnyMercier
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 2:08 pm

electrically speaking, the answer is Yes..
I don't thing Rackmount Devices have a wide Voltage-Ranges ,
So mesure the build-In Power-Supply to see what Voltage and Amps the Board wants...


--- Warnings ---
including but not limited to :)
- You will VOID any Mikrotik-Support / Garanties
- Voltage from Batteries, Solar-Panel or Main's can be hazardous (
- Any voltage fluctuation may translate to Performace degradation
- Any voltage or power fluctuation may also result in RouterOS crashes or Errors
- Don't forget to provide an adequate Battery Protection Circuit (over-discharge protection)
 
richard_s
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 2:38 pm

Thanks ConnyMercier I have had a quick look at the PSU and the electrolytic capacitors are 35v rated which suggests the output voltage will be 24v. I will get it on the bench tomorrow and check voltage with meter. As to batteries panels etc I am a qualified electrician. But thanks for your warnings they might be of use to others.

Richard
 
ConnyMercier
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 3:06 pm

Ahh, qualified electrician meaning "Man wo plays with electricity and asn't killed ihmself yet!"

:lol: :lol:



i am looking forward to seeing the results of your experiment!
Especially power savings!!
If i would be a betting man,
I would expect ~12% less then via Power-Inverter
 
richard_s
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 3:11 pm

Nope Connie qualified = taken the courses and passed them. As to mains power there is none nearby. Semi jungle area in Panama. Local houses solar powered.
 
ConnyMercier
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 3:14 pm

Sorry Richard,
thought it was clear, It was only a Joke !

Greating from a German colleague
 
richard_s
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 3:18 pm

LOL missed the joke I was up late last night and I am a bit tired 6 hours difference in UK and Panama time. I have the challenge of designing an off grid fiber network for a new eco village all off grid. Hence no local power.
 
ConnyMercier
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 3:28 pm

That sounds like a very cool and fun Project!

What kind of availability does your network need to Provide, 90% ?
 
richard_s
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 3:34 pm

Aiming for 99.99% using 2 unconnected routes for fallover. My friend is over there collecting info for me, Then he will oversee the network build.
 
ConnyMercier
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 3:49 pm

99.99% is a very respectable goal for a Offgrid-Solution!

i wish you the best of luck and if you need more help, i'll be glad to assist
 
richard_s
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Re: CRS328-4C-20S-4S+RM question

Sun Oct 17, 2021 3:57 pm

Cheers

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