Honestly, if we have a site that needs 450m's, it's probably going to be
either an outdoor rack cabinet or a standard rack in a tower shelter. So
a Cambium Sync 4-port DIN PIPS... meh? Yes, there's 450i which supports
the new sync, but still also supports Canopy sync. Then there's the
PTP550 coming which will also support CMM5 aka Cambium Sync. Still I say
meh.
IMO, focus on the RackInjector. I would like to see a telemetry card.
And a PDU card. I'll put two chassis at every site if I have to, I don't
give a shit. Probably won't be needed in most cases though.
We've made a decision that these small cabinets are just a pain in the
ass for expansion and new radio requirements. Outdoor rack cabinets
really aren't that expensive when you consider that it's probably what
you should have put there in the first place and now you're spending
time and $ replacing the small cabinet.
I hate doing things twice. Which is why I usually end up doing it right
the third time. Or fourth. :|
Just my 2c.
On 4/14/2018 8:09 PM, Forrest Christian (List Account) wrote:
For various reasons you need positive voltage if you're doing
traditional power-interruption canopy style sync. I.E. the type of
sync which the PowerInjector+Sync will do. This general statement
might not be 100% true with the 450i (and perhaps some other more
recent radios), but suffice it to say that negative voltages aren't
easy to deal with for sync. Because of this requirement the PIPS
requires positive power.
On the rackinjector, we support the newer Cambium style sync, which
doesn't much care about polarity, and also a polarity agnostic board
which also doesn't care about polarity. For this reason, you can feed
negative voltages into the rackinjector. Currently, you have to have
at least one of the three power supplies feeding the rackinjector set
up for positive voltage, and the other two can be positive or negative
or whatever you want, depending on the requirements of the expansion
cards and the radios.
One of the next released products will be a Cambium Sync product in
the traditional din mounted PIPS form factor. What is holding us up
is that we need to make the "reliant on a positive voltage source for
control" requirement go away. Every solution we look at tends to be
way more expensive than we want.
On Sat, Apr 14, 2018 at 5:53 PM, Seth Mattinen <se...@rollernet.us
<mailto:se...@rollernet.us>> wrote:
The PowerInjector plus Sync does *not* work with a telco DC -48V
input, correct? Only the new Rackinjector will?
--
*Forrest Christian* /CEO//, PacketFlux Technologies, Inc./
Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602
forre...@imach.com <mailto:forre...@imach.com> |
http://www.packetflux.com <http://www.packetflux.com/>
<http://www.linkedin.com/in/fwchristian>
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