28 Oct
2012
28 Oct
'12
8:31 p.m.
On Sun, Oct 28, 2012 at 12:26 PM, Alexander Chemeris
<alexander.chemeris(a)gmail.com> wrote:
Whats the total power budget? 802.3AF should be kosher with 13w at the
device, 802.3AT (PoE+) should be good up to a little over 20w
Im with you on the lab piece, Im just thinking of a seemingly
ubiquitous power source in a industrial environment -I bring this up
since so many industrial Wifi AP's (Gateworks, JJPlus, etc.) are PoE
powered
Interesting. Do you know similar ones in Europe? We manufacture in
France and shipping enclosures from US doesn't look like a good idea.
Not that Im aware of, I know of protocase since they did the backblaze
storage pods & you can order anything from them in individual piece
quantities -But thats not to say that there arent plenty of others
that offer the same services, I would imagine there would be a fair
amount of places in europe that will do sheet metal enclosures -If you
want something extruded though, they might have a MoQ to make the cost
of the die fabrication feasible...?
Hi Darby,
On Sun, Oct 28, 2012 at 10:08 PM, Darby <darbysgoodies(a)gmail.com> wrote:
I haven't realized that DigiKey, Avnet and others have PSU section, thanks!
Anytime =)
1. Power
supply, 12V-18V DC, >=20W.
I think it's easier to find a PSU with a standard round DC connector,
like this one and thus we need a converter cable to our Molex power
connector.
http://domino2.kycon.com/catalog_PDF/KLDX_SMT2.pdf
Not knowing center pin polarity or exact center pin size, it seems as
though digikey
(http://www.digikey.com/product-search/en/power-supplies-external-internal-o…)
has 348 that are 12-18v output, 10-20w, and have connectors that are
2.1mm ID to 2.5mm ID On a side
note, for power -Something that could come in useful since
its got ethernet, PoE?
PoE is an option, but UmTRX require too much power for the standard
PoE and we think that for lab usage PoE is an overkill.
2. Enclosure. We'd love to have a nice table-top
enclosure for UmTRX,
but it requires a significant effort to source, design and assemble.
If anyone has some preexisting case designs, there's always protocase
(protocase.com) or Rapid sheet metal
(http://www.rapidsheetmetal.com/parts/enclosures.aspx) -Im sure theres
plenty of other sheetmetal fabshops that will do custom work though,
If youre wanting to use something a bit more generic -Theres
enclosurehub.com --
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru