Lewis,
Have a look at the PTP670 if these are connectorized then no big deal
to do a radio swap.
Price point is better than ptp400 in the day and you get more horse
power with more bandwidth per hertz.
They also have some better modulation features as well.
I have a city I am doing 2 links for to replace some fiber that has gone
beyond their pocket book.
Dave
On 8/17/2018 10:53 AM, Lewis Bergman wrote:
Huh. So the only real difference I need isn't available. Figures.
On Fri, Aug 17, 2018 at 10:22 AM [email protected]
<mailto:[email protected]> <[email protected]
<mailto:[email protected]>> wrote:
The PTP550 has two radios in it that you can bond together. The
DSO ability hasn't been released in firmware.
When the DSO is operational, it will only change one channel at a
time so the link never goes down. You can also set
the channel width separately for each radio. Another note is that
these radios have not yet been approved for DFS
frequencies, so that will be another firmware upgrade to enable
that. About 5ms latency. Another feature in future
firmware will be GPS sync from a CMM5. (Or Packetflux I'm sure)
On Fri, Aug 17, 2018 at 11:07 AM, Lewis Bergman
<[email protected] <mailto:[email protected]>> wrote:
So I have a customer with a private PTP network built long
ago, obviously, with PTP400 links. For years this has worked
great and they have been happy. Recently, due to either
lightening or another contractor issue, one of the three sites
(2 of the the total 6 backhauls) are now dead. I could
probably find some ancient stuff and maybe replace these two
but I thought now would be a good time to get them into some
supportable equipment.
I would like something as trouble free as the PTP400.
Throughput is a non issue as they only need about 2Mbs. The
main deal is reliability and my desire to not have to jack
with the thing due to outside influences be they weather or
interference. Basically as close to the 400's trouble free
operation as possible. Cost is a factor but not the primary
one, yet something above $1000 each side is a non starter.
I have looked at the PTP550 which is based on an AC chipset
but says it has:
Dynamic Spectrum Optimization (DSO)* With Dynamic Spectrum
Optimization, PTP 550 systems are constantly optimizing the
channel of operation to maximize link reliability and
performance. Based on environment the PTP 550 can be set to
move or search better spectrum. As a result, customer can get
more throughput with limited spectrum in even the most
challenging environments
I also looked at the ePMP Force series, based on the same
chipset. I have used a bunch of these before but not in this
demanding (reliability wise) environment. All the Force stuff
seem to have a sentence like these:
Configurable modes of operation ensure robust adaptivity to
both symmetrical and asymmetrical traffic while providing high
performance and round-trip latency as low as 3-5 ms.
Configurable Modes of operation ensure robust adaptivity to
both symmetrical and asymmetrical traffic while providing high
performance and round-trip latency as low as 2 - 3 ms.
So I guess my question is, for those using these products, is
there really a big difference between the PTP550 line and the
Force line? They are both based on the AC chipset so while
there is maybe quite a bit they can do to enhance that I can't
imagine it would be earth shattering.
Any recommendations?
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