450 was started under Motorola, but that's besides the point. 450i
wasn't even being thought about at that time. The original goal of the
450 was for moar better, but let the FSK stay on the network without
using twice the spectrum. We all know the 450+FSK combo AP didn't work
out so well, but whatever, it's history. The idea was to let you swap
your FSK APs with 450 APs using the same channels. CMM3 or CMM4 in use
didn't matter, you could keep what you had. Swap APs and migrate
customers from FSK to 450 SMs as needed.
Now 5 years later, we're needing more spectral efficiency, better
filtering, i.e. more bandwidth, which requires more power. While Cambium
was at it, they came up with a way to support at least some legacy
pieces (such as the CMM4 w/ a 450i) while moving in the direction of
standardized POE which is all supported out of the box, in one piece of
hardware. Later at some point, add ieee1588v2 PTP and "Cambium Sync"
support for 450i. Yet it'll still work with regular sync-over-power.
Think of how old Canopy is. What, 2001 or 2002? Cambium just stopped
updates and support for PMP100 last year. Not to mention finally
stopping hardware production... on a 15 year old platform. And we still
have 12 year old radios in the air. I still have the first set of
5700BH's we bought in 2003 stashed in the cabinet... I think, last time
I looked.
So as I said, and I'm sure you agree, it's nice that Cambium is actually
listening to us. Progress. It takes time to change things and phase
things out. At least they're moving much faster than Motorola ever did.
On 4/5/2017 8:40 PM, Josh Luthman wrote:
450 and 450i are both Cambium
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Apr 5, 2017 9:34 PM, "George Skorup" <[email protected]
<mailto:[email protected]>> wrote:
Motorola?
At least Cambium is listening with making the Force180, Force200
and new 450 SMs that won't care about polarity.
On 4/5/2017 8:20 PM, Josh Luthman wrote:
How in gods green earth did we end up with a confusing power
pinout scheme for ONE companies products...
Josh Luthman
Office: 937-552-2340 <tel:%28937%29%20552-2340>
Direct: 937-552-2343 <tel:%28937%29%20552-2343>
1100 Wayne St
Suite 1337
Troy, OH 45373
On Wed, Apr 5, 2017 at 9:19 PM, George Skorup
<[email protected] <mailto:[email protected]>> wrote:
No, 450 is regular 'ol Canopy. 450i is the same, but 48/56VDC.
BUT.... 56VDC mode on the CMM4 is wired for the 320 and 430
APs which is why you need to reverse pins 5 and 7 for a 450i AP.
The 450i will take either polarity on pair. However, it has
been pointed out here and a few other places that you MUST
have -4/5 +7/8 or the radio simply won't see the
sync-over-power pulse.
On 4/5/2017 7:33 PM, David Young wrote:
The 450 Cambium is neither UBNT / Mikrotik nor legacy
Canopy. A 3rd way. We use the dongles despite the price so
there will be some clue inside the power injector CMM4 If we
get the urge to swap some cables to test a port.
Theoretically makes less smoke.
David
------------------------------------------------------------------------
From: Jan Van Kort <mailto:[email protected]>
Sent: 4/5/2017 5:41 PM
To: Cambium Networks User Group <mailto:[email protected]>
Subject: Re: [Cambium-users] smoked it
Ah, the old Betmax vs VHS routine. Swapping the pairs won't
mess up the
signal?
On 17-04-05 01:14 PM, Nick Bright wrote:
> On 3/31/2017 3:03 PM, Steve D wrote:
>> Ha, their classic POE standard is from the motorola era
before anyone
>> was doing POE standards (I'm sure they existed, just
ignored).
> There weren't and aren't any POE standards lower than 48v,
just some
> de-facto industry standards. At the time in the early
2000's, there was
> not an industry de-facto standard for lower voltage;
Cambium was one of
> the first with 30v blue negative/brown positive. The rest
of the
> industry eventually went with blue positive/brown negative.
>
>>
http://www.linktechs.net/productcart/pc/viewPrd.asp?idproduct=2265&idcategory=
<http://www.linktechs.net/productcart/pc/viewPrd.asp?idproduct=2265&idcategory=>
>> might be what you're looking for but it's male to male
and I'd guess
>> you'd want male to female.
> http://tyconsystems.com/index.php/passive/554-poe-xover-s
<http://tyconsystems.com/index.php/passive/554-poe-xover-s>
tycon makes a
> Socket to Plug adapter.
>
> You could also easily fabricate one with a hunk of cable,
a keystone
> jack, and a plug; just swap the blue and brown pairs on
one end.
>
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