No issues if it is an isolated DC-DC. From: Nate Burke Sent: Monday, November 5, 2018 3:11 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Edgepoint and -48V
This is my first foray into -48v. It looks like the Meanwell RSD-200C-48 is what I need. Input is 33-63vdc. So on the Input side, the -48 will go to the Negative terminal, and the ground will go to Positive. Then on the Output side I just wire it normal? We are not responsible for the radio mount location, so I don't know if they are tying the Ground back to their cabinet or not. Will there be other issues with the equipment grounds on the tower after it goes through the DC-DC Power supply? Nate On 11/1/2018 10:24 AM, Josh Baird wrote: As far as I know, the EdgePoint will smoke if you power it with -48VDC. You'll need a DC-DC converter in between your -48VDC plant and the EdgePoint. I would recommend Meanwell RSD. More info: https://community.ubnt.com/t5/EdgeSwitch/A-nightmare-with-Edgepoint-S16/td-p/1611552/page/2 On Thu, Nov 1, 2018 at 11:21 AM Nate Burke <[email protected]> wrote: I know that +/-48 is oft discussed, but I still can't quite keep track of the caveats with different equipment. I need to put an Edgepoint S16 at a Telco cabinet, and they will supply me power off of their -48v plant. Do I need to do anything special since the Edgepoint does auto polarity on the DC Input? I'm guessing that since it's auto polarity, the case and ground are isolated from the input lines. -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -------------------------------------------------------------------------------- -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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