I responded to Ryan's ticket in our system, but figured I'd follow up
here as well.
Everyone's comments on amount of power supply is right on.
In regards to the pinning. The cambium sync card has a specific
pinout which is fixed for technical reasons I don't need to go into
details for... suffice it to say that the design for a flexible
jumpered version of this card would have added enough complexity and
cost to an already more expensive than I really wanted it to be
card. And by additional cost I mean it would have been almost as
much as buying a cambium sync card plus a separate agnostic card.
So I figured it was better to just ship it fixed-pinout.
So, buy a cambium sync card for any 450i or 450m's you need sync for,
and an agnostic card for everthing else. The only exception to this
advice is that the traditional PIPS card is required for radios which
need the older canopy-style sync (I.E. 450 and before and ePMP).
On Wed, Dec 12, 2018 at 5:38 PM Ryan Ray <[email protected]
<mailto:[email protected]>> wrote:
That's a good point, I think I've also figured out I can't power
anything BUT cambium 450i and 450m with the two cards I have. So
I'll need a polarity agnostic card I believe.
I didn't think long enough but I think you're right, each port
can be a seperate power supply. So 450m on each power supply then
on the third one could carry a mimosa and the 820
On Wed, Dec 12, 2018 at 4:16 PM Mathew Howard
<[email protected] <mailto:[email protected]>> wrote:
I imagine it would probably be fine, since that's max load,
and not what it's typically going to be using, but 120 watts
on a 120 watt power supply is a bit closer than I'd want
things to be.
I assume your using a rack injector, which if I remember
correctly, lets you use any power input on any of the ports
(regardless of what card they're on), so why not use all
three power supplies?
On Wed, Dec 12, 2018 at 2:24 PM Ryan Ray <[email protected]
<mailto:[email protected]>> wrote:
Would like to tag on this, I've sent this off to
packeflux support as well but maybe the crowd can tell me
if this is good.
I would like to power the following.
1 – PMP450i (5ghz)
2 – PMP450m (5ghz)
1 – PTP820S (18ghz)
1 – Mimosa B24 (24ghz)
I’ve got two “Cambium Sync for 450i / 450m” boards. I’ve
also got three 48v 2.5A 120w,c8 power supplies.
Can I plug in two of the 48v 2.5A power supplies, then
configure
Card 1 – 1^st power supply – pmp450m, pmp450i, mimosa b24
Card 2 – 2^nd power supply – pmp450m, PTP820s
PMP450m – 70W typical, 80W peak
PMP450i – 15W typical, 25W max
PTP820S – 35W
Mimosa B24 – 19.5W max
So looking at the power supply, it can do 120w
If I do the way I want we would be looking at 120W for
the first power supply and then 105W for card two.
Would this be enough power do you think? Seems like I'm
right up against the limits trying to power everything
with two power supplies. -48v isn't an option at this site.
Just want to make sure I’m not doing anything strange or
out of the ordinary here.
On Wed, Oct 3, 2018 at 4:50 PM Mathew Howard
<[email protected] <mailto:[email protected]>> wrote:
That's kind of surprising that an old 450 AP ran for
a couple of days on 48v before it died... I would've
expected it to die right away.
It would be very nice if everything would just run on
either voltage... the ePMP 1000 GPS radios do, and an
AF5x does (unless it's one of the very first ones to
ship... then it's 24v only), but I think that's about
all that does. Pretty much anything that does Gigabit
PoE will take either polarity, so that at least
simplifies things a little bit (but using the wrong
PoE pinout can screw up sync over power... so there's
that).
On Wed, Oct 3, 2018 at 11:06 AM Ken Hohhof
<[email protected] <mailto:[email protected]>> wrote:
There are lots of choices.
For DIN rail, I keep the Traco 360W units in
stock, use them with or without the BMU depending
on whether it’s an AC or DC site.
For non DIN rail, I keep Mean Well 150W and 300W
HRP series in stock.
Most stuff is going to 48V, so I’m building DC
sites as 48V now. Small DC-DC for 24V if needed,
more and more not needed.
And of course whenever we say 48V, the equipment
needs to actually accept up to at least 60V.
It’s starting to drive me crazy when I want to
add a sector at a site and realize the existing
sectors are 24V but the new one will have to be
48V. The RackInjectors and PowerInjectors handle
this nicely, but it’s a recipe for disaster and a
source of confusion. I’ve already fried a 450 AP
at a tower with mixed vintage equipment, because
I thought it was a 450i and I powered it with
48V. It ran for a couple days and then died.
Techs keep questioning me when I say an AF5x or a
Nanostation ac takes 24V. I understand the
confusion, you don’t expect 24V on a Gigabit
POE. What would really make sense is if
equipment would accept either voltage, and either
polarity. OK, not possible with high current
draw radios like a Medusa or an AF11, but it
would be nice on a Nanostation.
*From:* AF <[email protected]
<mailto:[email protected]>> *On Behalf Of
*Forrest Christian (List Account)
*Sent:* Wednesday, October 3, 2018 10:28 AM
*To:* AnimalFarm Microwave Users Group
<[email protected] <mailto:[email protected]>>
*Subject:* Re: [AFMUG] Packetflux noob
I have the new 3.65 medusa on my mind.... plus
I'm a bit tired.
The 48V 2.5A power supplies will run 2 non 3.65
medusa radios each. If you jumper the boards so 2
radios run off of each power supply you'll be
fine (the AF24 is a similar quantity of power).
But, a bulk supply is probably a better idea if
you can find one in your right form factor.
On Wed, Oct 3, 2018 at 8:07 AM Eric Muehleisen
<[email protected] <mailto:[email protected]>>
wrote:
I've been using CTM2's for nearly a decade,
but they do not support 450m. CMM5 is waaay
to expensive for what it does and is clunky.
I've been looking at Packetflux's RackInjector's.
I'm not familiar with PacketFlux products and
need clarity on something. See attached. I
need to power (3) 450m AP's and a(1) AF24. I
also need physical spares for each unit. Is
the attached parts list correct or am I
missing something?
Thanks!
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