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DC Power Splitter/supply for small wireless rack.

Discussion in 'Sound, Music, and Intercom' started by NickVon, Feb 13, 2018.

  1. NickVon

    NickVon Active Member

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    I got a small 2u Rack with 4 wireless 1/2 rack wireless. (Senn. EW100) There is not really any room to install a power strip for the Wall warts. I stumbled upon the below. a 12v DC adapter with 4 tails.
    https://www.amazon.com/gp/product/B002WM8ZV0/?tag=controlbooth-20

    This DC splitter device seems designed for Video cameras but the 2.1mm connectors are compatible an the voltage and amp capacity. So I picked it up, and unsurprisingly it appears to be junk, some of the connectors don't work, or are a inconsistent fit. The end result being that between both of them only 1 connector worked, on 1, and 2 on the other, and both in consistently.

    Is anyone aware of a place to look for something built better (UL listed, which the above in hind-sight appear not to be) that solves my 4 unit power problem. They draw 12v DC, 400mA each.

    I have an Old GEN 1 ASA1/NT RF combiner that I'm using for antenna distro, but it's in another rack and has little DC tails (that won't reach) as supposed to supplying power through the RF connector.

    Thoughts or place to look for a solution!? Much appreciated.
     
  2. sk8rsdad

    sk8rsdad Well-Known Member Premium Member Fight Leukemia

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    Adafruit carries a 4-way splitter. I doubt UL would be involved in the testing of a wire harness though. Pair it with a rated 12V 2A power supply. Music stores probably have similar splitters or daisy chain cables for guitar pedals.
     
  3. Amiers

    Amiers Lighting Phoenix 1 Lamp at a Time

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    Get a 1700ma and add the tails yourself? All could be bought pretty cheap and would be a nice fun project.
     
  4. Aaron Becker

    Aaron Becker Active Member

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    My first (professional) suggestion would be get the appropriate antenna slitter that handles DC power. My second suggestion would be get a compatible one that still works. I've used plenty of Shure splitters with senny gear - without issues. Make sure the RF band matches. Watch for re-stock, B-stock, used, etc from your retailers or ebay. The above are good suggestions too.
     
    BCAP likes this.
  5. themuzicman

    themuzicman Well-Known Member

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    Keep on searching for CCTV power distribution and you'll find what you want. The few times I've had to take video calls this is how the big shops build out their video racks to power all the tiny bits. I don't know a make/model on the fancier variants, I've certainly seen fancier boxes than the one I linked to, but you get the general idea (that being said, the one I linked to will require you to buy 2.1mm barrel connectors and wire, sorry...).

    A PSU is much less expensive than a new antenna splitter. While one less piece of gear in a rack is nice, there are better ways to allocate budget if you have room to spare in a rack.
     
  6. TNasty

    TNasty Active Member

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    There's one brand on Amazon that makes what they claim to be the "best" 12v power brick (probably not true, but certainly one of the better non-included-with-a-device bricks). It is certainly one of the heavier 12v bricks I've held, and is supposedly rated for 5 amps at 12v. Here's a link to the brick. I've got two- one powering my base station radio 24/7 for about a month and a half now, and the other for various things.

    You could use one of the beefier ones like that, and then break it off into however many plugs you need. I've seen premade splitters on amazon, but you could figure something out yourself easily too.
     
  7. LPdan

    LPdan Member

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    If you’ve got room for the wall warts, just not on a power strip, I have tied the wall warts together with zip-line (snap on receptacles). This lets you place each one wherever it fits in the rack with a small outlet.
     
  8. NickVon

    NickVon Active Member

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    I had already booked at that particular 12v powersupply as an potential alternate @TNasty. So I'm picking it up along with a 4-way Y splitter to put on the end. I'll keep you updated with how it works.
     
    TNasty likes this.
  9. JD

    JD Well-Known Member

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    Newer post-market Sennheiser compatible adapters are thinner and rotated 90 degrees. Prior, you could only get 3 into a 6 outlet strip. Now you can fit 6.
    The newer OEM Sennheisers are smaller too, but I don't believe they rotated the prongs.
    [​IMG]
     
  10. NickVon

    NickVon Active Member

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    UPDATE: as TNASTY suggested that power supply worked great, and I picked up the suggested 4 way y splitter, and it all works great now!
     
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