To syn you need to use APs on the master side, latency will jump to 20ms
avgŠ. Just use ptp450¹s!



Gino A. Villarini
President
Aeronet Wireless Broadband Corp.
www.aeronetpr.com  
@aeronetpr






On 11/22/14, 1:31 PM, "Paul McCall via Af" <af@afmug.com> wrote:

>For Cambium.... we have a very remote tower that feeds several other
>towers.  Everything is OSPF but logically...
>
>Tower R (the main remote tower - a 190 ft. Rohn 25G with several
>anti-twist devices) is "fed" by...
>       Tower A - 26 miles away - UBNT 3.65ghz Rocket M5 AND a Mikrotik RB912 5
>Ghz
>               This commercial tower (Tower A) has over 300Mbit of usable 
> bandwidth
>and feeds about 75 to 85 Mbit to Tower A
>       Tower B - 9 miles away - UBNT 5ghz Rocket M5
>               This tower (Tower B) is a 90 ft. Rohn 25G               
>
>Tower R then feeds...
>       Tower C - 12 miles away - Mikrotik RB912 - 5 GHz - 50 Mbit of usable
>bandwidth.  (Rohn 25G 120 ft.)
>       Tower D - 15 miles away - Mikrotik RB912 - 5 GHz - 40 Mbit of usable
>bandwidth.  (Rohn 25G 120 ft.)
>       Tower E - 17 miles away - Mikrotik RB912 - 5 GHz - 40 Mbit of usable
>bandwidth.  (Rohn 25G 120 ft.)
>       Tower F - 14 miles away - Mikrotik RB912 - 5 GHz - 40 Mbit of usable
>bandwidth.  (Rohn 25G 120 ft.)
>
>To get all this to work without Sync was quite a frequency juggling act.
>There are other towers in the area and towers C, D, E, F connect (chain)
>to each other on the "back side" and we use a couple 3.65Ghz UBNT radios
>on the backside links.
>
>The challenge...
>
>First of all, I need more BW to each tower, but mostly Tower C.  And, I
>need better consistency... at times the links do not perform as I expect
>and then I get customer complaints etc. I hate that.
>
>So, what would be the best solution that Cambium can recommend other than
>a ton of licensed links?  Obviously, the gear I am using now is
>inexpensive.
>
>The PTP110 solution ... 2ms unsynced....    can it sync, now or tomorrow?
>  Latency with sync?
>
>Paul
>
>
>-----Original Message-----
>From: Af [mailto:af-boun...@afmug.com] On Behalf Of Matt via Af
>Sent: Thursday, November 20, 2014 11:47 AM
>To: af@afmug.com
>Subject: Re: [AFMUG] ePMP Force
>
>> Hi,
>>
>> Please allow me to clarify.
>>
>> The Force 110 uses the Connectorized UnSync'd unit with the two 10/100
>>FE ports.
>>
>> The Force 110 PTP uses the Connectorized GPS Sync'd unit with the
>> single GigE port that supports 802.3af PoE in addition to proprietary
>>PoE. GPS capabilities will be disabled (but the radio can still use the
>>on board GPS chip to track satellites and provide coordinates).
>>
>> The 2ms latency is achieved purely through software changes in Release
>>2.4 and will apply to both products.
>
>Reading this spec sheet.
>
>http://www.cambiumnetworks.com/files/PRODUCTS/ePMP/FORCE/Force%20110%20PTP
>_Oct2014.pdf
>
>>>>LATENCY (nominal, one way) < 2 ms (PTP Mode), 6 ms (Flexible Frame
>>>>Mode) , 17 ms (GPS Sync Mode)

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