EOL means it should get cheaper. :-) 



----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 




----- Original Message -----

From: "Eric Muehleisen" <[email protected]> 
To: [email protected] 
Sent: Friday, August 17, 2018 12:52:48 PM 
Subject: Re: [AFMUG] Cambium PTP400 replacement 


The 650 is EOL. Go with the 670 and you can use it in multipoint mode and save 
on radio costs. 


On Fri, Aug 17, 2018 at 11:34 AM Joe Novak < [email protected] > wrote: 



I wouldn't put up a AC EPMP/PTP550 and expect it to be trouble free yet... the 
firmware is still being ironed out. Tried and true would probably be 
PTP650/PTP450 like Colin said. 


On Fri, Aug 17, 2018 at 10:59 AM, Sam Lambie < [email protected] > wrote: 

<blockquote>

If bandwidth isn't an issue, I have a whole bunch of PTP 100's laying around. 
Cheap.... 




On Fri, Aug 17, 2018 at 9:55 AM Lewis Bergman < [email protected] > 
wrote: 

<blockquote>

Huh. So the only real difference I need isn't available. Figures. 


On Fri, Aug 17, 2018 at 10:22 AM [email protected] < 
[email protected] > wrote: 

<blockquote>


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] > 
wrote: 



<blockquote>









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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</blockquote>
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</blockquote>



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Sam Lambie 
Taosnet Wireless Tech. 
575-758-7598 Office 
www.Taosnet.com 
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</blockquote>

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