Agreed. The issue I have been experiencing is that many new high-power radios are coming out (e.g. AF5/AF24) in 48V. Even one of these can tip the balance of power toward 48V, so at that point it makes sense to bite the bullet, and convert to 48V.

bp
<part15sbs{at}gmail{dot}com>

On 6/26/2015 9:45 AM, Adam Moffett wrote:
Yeah, higher voltage = lower current = less energy lost as heat

....though if all your loads are 24v (Canopy, UBNT, Mikrotik) then starting with 24 saves you a conversion.


On 6/26/2015 12:36 PM, Bill Prince wrote:
I would argue the opposite. Higher voltage means lower current which means longer run time (generally).

bp
<part15sbs{at}gmail{dot}com>

On 6/25/2015 9:55 PM, Josh Luthman wrote:

Plus DC sites are better in 24 than 48 volts.

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

On Jun 26, 2015 12:49 AM, "Colin Stanners" <cstann...@gmail.com <mailto:cstann...@gmail.com>> wrote:

    Cambium couldn't use standard poe because when they started
    development - around 2000? - such a thing didn't exist, the AF
    standard came out in 2003. Also if they had used 48v the POE
    injectors would cost about 3x as much.

    On Jun 25, 2015 8:04 PM, "Sean Heskett" <af...@zirkel.us
    <mailto:af...@zirkel.us>> wrote:

        i'm just saying that the financial decision for carrying the
        old and new poe goes deeper than how much they may or may
        not be making on the poe.

        cambium after all is in the business of selling light bulbs
        (SMs) and if you need a special socket to use their light
        bulb it might behoove them to continue selling the socket
        AND the light bulb.

        unfortunately this all goes back to the very beginning of
        not using a standard poe product.

        by the way we are not planning to move all new installs to
        telrad that statement was for dramatic effect ;-)

        -sean



        On Thu, Jun 25, 2015 at 6:50 PM, Ken Hohhof
        <af...@kwisp.com> wrote:

            This is sounding like Jack Nicholson trying to get his
            whole wheat toast in Five Easy Pieces.
            *From:* Sean Heskett <mailto:af...@zirkel.us>
            *Sent:* Thursday, June 25, 2015 7:32 PM
            *To:* af@afmug.com
            *Subject:* Re: [AFMUG] Canopy POE end of life :-/
            but if i decide to completely move all new installs to
            telrad they would be very sad puppies.
            just sayin
            On Thu, Jun 25, 2015 at 6:26 PM, <cstann...@gmail.com>
            wrote:

                How much do you think they make per Canopy PSU after
                the stockkeeping / freight /organizational work? $3
                ? I'm sure losing those sales won't keep them up at
                night.
                
------------------------------------------------------------------------
                *From: *TJ Trout <t...@voltbb.com>
                *Sender: *"Af" <af-boun...@afmug.com>
                *Date: *Fri, 26 Jun 2015 00:12:22 +0000
                *To: *<af@afmug.com>
                *ReplyTo: *af@afmug.com
                *Subject: *Re: [AFMUG] Canopy POE end of life :-/
                That will be really funny if CTI sources them and
                moto looses out on a bunch of sales, lol
                On Thu, Jun 25, 2015 at 5:03 PM, Colin Stanners
                <cstann...@gmail.com> wrote:

                    With the speed keys and regional variants they
                    have a large amount of product stock already, I
                    imagine they're not trying to keep old items and
                    didn't see a big reason people would want the
                    old-style PSUs.

                    I thought CTI had gotten some PSUs straight from
                    the manufacturer years ago when there was a
                    Motorola shortage, you could check with them.
                    On Thu, Jun 25, 2015 at 6:47 PM, Sean Heskett
                    <af...@zirkel.us> wrote:

                        Which is great...for you.
                        Why can't I have a choice?  Why are they
                        taking it away if there is still demand? Why
                        won't they let us go straight to whatever
                        manufacturer they get them from??


                        On Thursday, June 25, 2015, Colin Stanners
                        <cstann...@gmail.com> wrote:

                            I'm one of those that prefer the new PoE:

                            -less outlet space needed
                            -gigabit option (current 450 SMs can
                            reach 75mbit down so it's likely next
                            generation will hit 100+)
                            -can choose whatever cable length is
                            needed to go to PC/router.
                            -won't have the broken RJ tab / wires
                            pulling out of the RJ due to cable
                            weight issues of the current PoE model
With very big "TO COMPUTER / ROUTER" "TO OUTSIDE ANTENNA" labels, on both
                            sides of the unit, customer wiring
                            mistakes will be almost eliminated. I
                            haven't seen that as a big problem on
                            the PMP320.
                            On Thu, Jun 25, 2015 at 2:57 PM, Sean
                            Heskett <af...@zirkel.us> wrote:

                                Ray can you please come and hang out
                                with one of my clients for a day and
                                hand them each POE and see which one
                                they can hook up and which one they
                                can't??
                                Just because you have made this
                                decision doesn't mean it's a good
                                decision and we are asking cambium
                                to reconsider. The new POE sucks!
                                Period!
                                2cents


                                On Thursday, June 25, 2015, Ray
                                Savich
                                <ray.sav...@cambiumnetworks.com> wrote:

                                    Check out the details at
                                    
http://community.cambiumnetworks.com/t5/PMP-450/Canopy-POE-end-of-life/m-p/41732


                                    Ray

                                    Join the Conversation

                                    Cambium Networks Community Forum
                                    <http://community.cambiumnetworks.com/>

                                    *From:*members-boun...@wispa.org
                                    [mailto:members-boun...@wispa.org]
                                    *On Behalf Of *Sean Heskett
                                    *Sent:* Thursday, June 25, 2015
                                    10:38 AM
                                    *To:* af@afmug.com
                                    *Cc:* memb...@wispa.org
                                    *Subject:* Re: [WISPA Members]
                                    Canopy POE end of life :-/

                                    Thanks for the link josh.  They
                                    normally cost ~$10 so the eBay
                                    price of $24 is someone trying
                                    to make a buck on them before
                                    they are gone. Also eventually
                                    eBay will run out too so that's
                                    not a long term solution.

                                    Come on cambium listen to your
                                    long time loyal customers!

                                    -Sean



                                    On Thursday, June 25, 2015, Josh
                                    Luthman
                                    <j...@imaginenetworksllc.com> wrote:

                                    
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.Xcanopy+power+supply.TRS0&_nkw=canopy+power+supply&_sacat=0


                                    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 Thu, Jun 25, 2015 at 11:24
                                    AM, Sean Heskett
                                    <af...@zirkel.us> wrote:

                                    Dear Cambium,

                                    Why won't you let us buy the
                                    ACPSSW-13B POE if we still want to?

                                    It's very frustrating that we
                                    now have to change our install
                                    procedures AND our tech support
                                    procedures. The new POE is also
                                    very cumbersome and prone to
                                    clients plugging things in
                                    backwards etc.

                                    Can you either keep selling them
                                    or give us access to the
                                    manufacturer so that we can
                                    still buy them?

                                    -Sean


                                    
_______________________________________________
                                    Members mailing list
                                    memb...@wispa.org
                                    
http://lists.wispa.org/mailman/listinfo/members





Reply via email to