Thanks, that is helpful. This is the CCR2004 with 12 port SFP+ and two port 25Gbps, so has built in AC to DC units.
Was hoping to just get the mikrotik replacement PS parts, but they don’t exist right now. So maybe I will just end up doing what you did with the Meanwell units. From: AF <[email protected]> On Behalf Of castarritt Sent: Monday, November 7, 2022 12:01 PM To: AnimalFarm Microwave Users Group <[email protected]> Subject: Re: [AFMUG] -48v to 12v 1A Which CCR2004 do you have? Your best bet is probably something like a Meanwell RSD-60L-12 or RSD-100C-12. I just stuffed an RSD-100C-12 into a CRS354 last week. I cut the connector off the PSU side of the AC/DC PSU to motherboard cable and wired those four wires to the Meanwell output, then I made my own cable going from the Meanwell input to a power pole connector sticking out the back. If you have the CCR2004 with the dual hot-swap PSUs, you might have trouble finding room inside the CCR for the Meanwell though. I would open one up and take a look if I was you. On Mon, Nov 7, 2022 at 11:52 AM Sterling Jacobson <[email protected]<mailto:[email protected]>> wrote: A picture or two if you have it convenient would help. Seems like these are not available, if you happen to have a couple on the shelf you can part with by chance let me know. I’ve got pre-orders in right now so I can convert about 10 of these units, but I really want to get a couple PS in to convert just one in our “test” location. From: AF <[email protected]<mailto:[email protected]>> On Behalf Of Josh Luthman Sent: Monday, November 7, 2022 6:46 AM To: AnimalFarm Microwave Users Group <[email protected]<mailto:[email protected]>> Subject: Re: [AFMUG] -48v to 12v 1A The 4 pin goes to the circuit board inside the case. I never checked what the voltages/difference/etc were, but I'm guessing that board does 12v and something else out (and 48v in). My stuff is using an ICT and CCR so if you want pictures to confirm it's wired right before letting out the magic smoke let me know. On Sun, Nov 6, 2022 at 4:49 PM Sterling Jacobson <[email protected]<mailto:[email protected]>> wrote: Oh, ok, somehow I missed that! Thanks for giving the link, I’ll have to see if Streakwave or someone has them, this would be a lot easier. I could just take that to a barrel connector on the back and make sure that the proper feed polarity is used. From: AF <[email protected]<mailto:[email protected]>> On Behalf Of Josh Baird Sent: Sunday, November 6, 2022 6:13 AM To: AnimalFarm Microwave Users Group <[email protected]<mailto:[email protected]>> Subject: Re: [AFMUG] -48v to 12v 1A You can buy -48VDC power supplies directly from MT for the 2004. It's simple to install them. https://mikrotik.com/product/pw48v_12v85w On Sat, Nov 5, 2022 at 3:56 PM Sterling Jacobson <[email protected]<mailto:[email protected]>> wrote: I’m not familiar with -48v power plant. What would it take to “convert” from a -48v wire pair to a 12v 1A wire pair? I’m converting a Mikrotik CCR 2004 to -48v plant in my cabinets. The 2004 doesn’t have replaceable power supplies so I was just going to cut and wire the 12v headers on the motherboard to a DC barrel installed on the back of the unit alongside the AC Input… Not sure if that would be best, easiest? It’s easy to find 48v to 12v downconverters, but -48v is a mystery to me. Help me demystify it? -- AF mailing list [email protected]<mailto:[email protected]> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected]<mailto:[email protected]> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected]<mailto:[email protected]> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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