I agree with using the Mean Well AD-155x if your load is <120W and you're looking to keep it cheap. A Traco TSP+BCM (or BCMU) is more expensive, but you get alarm contacts.

Is your backhaul +48 or -48 though?

On 10/6/2015 12:06 PM, Lewis Bergman wrote:
It is a 3 site MotoTrbo IP SiteConnect radio system. 3 repeater sites linked together (48VDC for BH) while the repeaters have 12VDC backup. The Meanwell 12 to 48 converters drop output at 13.1 VDC.

On Tue, Oct 6, 2015 at 12:01 PM, Josh Luthman <[email protected] <mailto:[email protected]>> wrote:

    Probably not for WISP stuff - what is it? I'm curious =)


    Josh Luthman
    Office: 937-552-2340 <tel:937-552-2340>
    Direct: 937-552-2343 <tel:937-552-2343>
    1100 Wayne St
    Suite 1337
    Troy, OH 45373

    On Tue, Oct 6, 2015 at 12:55 PM, Lewis Bergman
    <[email protected] <mailto:[email protected]>> wrote:

        I only have 12VDC at this location so 24 to 48 doesn't help
        much, but thanks. I have used those alot. I'll take a look at
        the AD-155C which I had somehow missed. That might just be the
        ticket. Thanks.

        On Tue, Oct 6, 2015 at 11:21 AM, Josh Luthman
        <[email protected]
        <mailto:[email protected]>> wrote:

            DR-UPS40 is *NOT* 24vdc and 48vdc out.  It's pretty much a
            relay that enables charging batteries.

            ad-155c will do 120 or 220vac in, terminals for the
            batteries and 48vdc out
            http://www.jameco.com/jameco/products/prodds/2146118.pdf

            DC 24v to 48v
            Meanwell SD-200B-48 - maybe try RSD-200B-48

            Both units use these brackets for DIN.  You need to buy
            your own screws (sorry I don't have that documented)

            
https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_222148_-1
            
https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_222173_-1


            Josh Luthman
            Office: 937-552-2340 <tel:937-552-2340>
            Direct: 937-552-2343 <tel:937-552-2343>
            1100 Wayne St
            Suite 1337
            Troy, OH 45373

            On Tue, Oct 6, 2015 at 12:16 PM, Lewis Bergman
            <[email protected] <mailto:[email protected]>>
            wrote:

                I am looking for something like the DR-UPS40, which is
                24VDC but in 48V. I found a HEP-600C-48 but it also is
                a lot more expensive than I want. DIN or standard case
                is fine. Does anyone know of something to fit this bill?

                I found a couple of things from Altech, RLH, and a
                couple of others but none I have used before.

-- Lewis Bergman
                325-439-0533 <tel:325-439-0533> Cell





-- Lewis Bergman
        325-439-0533 <tel:325-439-0533> Cell





--
Lewis Bergman
325-439-0533 Cell

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