My DC sites are just power to the unit (packetflux usually). Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Feb 3, 2015 11:46 AM, "Mike Hammett" <af...@ics-il.net> wrote:
> I'd be interested to know if these tower-top DC protectors are going just > before the radio (mere inches), at the PDU you're using or somewhere else. > > > > ----- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > ------------------------------ > *From: *"Jeremy" <jeremysmi...@gmail.com> > *To: *af@afmug.com > *Sent: *Tuesday, February 3, 2015 10:43:54 AM > *Subject: *Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With AFiber > port? > > Those of you who are running direct DC, are you using tower top surge > protectors? Anyone have an example of these you can link me to? > > On Tue, Feb 3, 2015 at 9:35 AM, Mike Hammett <af...@ics-il.net> wrote: > >> BTW: My intent with dual SFPs is to allow for router maintenance without >> losing the link. Dual cable everything, then you can perform maintenance >> (intentional or not) and you keep passing bits. >> >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions >> http://www.ics-il.com >> >> ------------------------------ >> *From: *"Mathew Howard" <mhoward...@gmail.com> >> *To: *"af" <af@afmug.com> >> *Sent: *Tuesday, February 3, 2015 10:29:51 AM >> >> *Subject: *Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With >> AFiber port? >> >> There's clearly a market for radios with SFP ports, I really don't >> understand why they aren't making them. MIkrotik routers only cost $5-$10 >> extra with an SFP port, so it can't cost that much, and that can easily be >> passed on to us without anyone complaining... well, assuming they keep >> making a cheap version without SFP, I imagine there would be riots on the >> ubiquiti forums if they tried to raise the price of radios by more than >> $0.12 >> >> On Tue, Feb 3, 2015 at 10:19 AM, Mike Hammett <af...@ics-il.net> wrote: >> >>> Exactly. Run two cables with 24 or more strands up diverse paths. SFP to >>> each device. I'd like to see dual SFPs on every device and SFP+s on devices >>> that could possibly surpass 1G, but one step at a time. >>> >>> >>> >>> ----- >>> Mike Hammett >>> Intelligent Computing Solutions >>> http://www.ics-il.com >>> >>> ------------------------------ >>> *From: *"Josh Luthman" <j...@imaginenetworksllc.com> >>> *To: *af@afmug.com >>> *Sent: *Tuesday, February 3, 2015 10:17:18 AM >>> >>> *Subject: *Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With >>> AFiber port? >>> >>> If literally every device on the tower had an SFP I'd be in heaven. I'd >>> run TWO cables for DOZENS of devices. Fiber patch cables everywhere on the >>> tower!!! >>> >>> >>> Josh Luthman >>> Office: 937-552-2340 >>> Direct: 937-552-2343 >>> 1100 Wayne St >>> Suite 1337 >>> Troy, OH 45373 >>> >>> On Tue, Feb 3, 2015 at 11:10 AM, Mike Hammett <af...@ics-il.net> wrote: >>> >>>> SFP every single tower and enterprise device. >>>> >>>> >>>> >>>> ----- >>>> Mike Hammett >>>> Intelligent Computing Solutions >>>> http://www.ics-il.com >>>> >>>> ------------------------------ >>>> *From: *"Josh Luthman" <j...@imaginenetworksllc.com> >>>> *To: *af@afmug.com >>>> *Sent: *Tuesday, February 3, 2015 9:30:02 AM >>>> >>>> *Subject: *Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With >>>> AFiber port? >>>> >>>> SFP should be on backhauls. For APs I don't think I'd use it. >>>> >>>> Josh Luthman >>>> Office: 937-552-2340 >>>> Direct: 937-552-2343 >>>> 1100 Wayne St >>>> Suite 1337 >>>> Troy, OH 45373 >>>> On Feb 3, 2015 10:22 AM, "Mathew Howard" <mhoward...@gmail.com> wrote: >>>> >>>>> I really can't see a good reason for airFiber not to have an SFP >>>>> port... I really don't think anyone would mind if it added a couple bucks >>>>> to the cost. I think it would even make sense to have an SFP option on >>>>> something like the titanium Rockets... the standard Rockets, no probably >>>>> not. >>>>> >>>>> On Tue, Feb 3, 2015 at 8:46 AM, Mike Hammett <af...@ics-il.net> wrote: >>>>> >>>>>> You can do that on a separate DC system. I've seen multiple >>>>>> manufacturers say you can't on a PoE system. >>>>>> >>>>>> Are your links filling the GigE? >>>>>> >>>>>> Most of the time people aren't concerned with protecting the radio, >>>>>> but whatever likely more expensive gear is inside or the structure >>>>>> itself. >>>>>> >>>>>> >>>>>> >>>>>> ----- >>>>>> Mike Hammett >>>>>> Intelligent Computing Solutions >>>>>> http://www.ics-il.com >>>>>> >>>>>> ------------------------------ >>>>>> *From: *"Ken Hohhof" <af...@kwisp.com> >>>>>> *To: *af@afmug.com >>>>>> *Sent: *Tuesday, February 3, 2015 8:40:31 AM >>>>>> >>>>>> *Subject: *Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With >>>>>> AFiber port? >>>>>> >>>>>> Many manufacturers recommend surge protectors at both ends. It’s >>>>>> certainly possible, I have licensed gigabit POE radios with protectors >>>>>> top >>>>>> and bottom and no errors. >>>>>> >>>>>> I’ve never seen how a surge protector at the bottom of the tower >>>>>> protects the radio at the top, seems like it protects the >>>>>> router/switch/POE. >>>>>> >>>>>> Not saying I love my Purewave system, but it has 48VDC on a separate >>>>>> pair of wires and they have you put DC protectors top and bottom. They >>>>>> told me field failures of basestations went way down with the addition of >>>>>> the DC protectors. And capacitance is no issue, you can put big old >>>>>> MOVs, >>>>>> gas tubes, diodes, whatever you want on there to absorb the surge. >>>>>> >>>>>> >>>>>> *From:* Mike Hammett <af...@ics-il.net> >>>>>> *Sent:* Tuesday, February 03, 2015 7:04 AM >>>>>> *To:* af@afmug.com >>>>>> *Subject:* Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With >>>>>> AFiber port? >>>>>> >>>>>> Easier to protect power alone than power + data. Usually I see the >>>>>> data going out anyway vs. the power side. >>>>>> >>>>>> I really did mean ESD as I separated ESD and lightning. >>>>>> >>>>>> Usually the manufacturer recommends only one additional surge >>>>>> suppression device as to data capacitance issues. That restriction goes >>>>>> away with separate power + data (over fiber). >>>>>> >>>>>> >>>>>> >>>>>> ----- >>>>>> Mike Hammett >>>>>> Intelligent Computing Solutions >>>>>> http://www.ics-il.com >>>>>> >>>>>> ------------------------------ >>>>>> *From: *"Ken Hohhof" <af...@kwisp.com> >>>>>> *To: *af@afmug.com >>>>>> *Sent: *Monday, February 2, 2015 10:48:29 PM >>>>>> *Subject: *Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With >>>>>> AFiber port? >>>>>> >>>>>> Why do you say no more ESD issues? (I think you really mean >>>>>> lightning issues, I don’t buy this wind blowing across the plastic >>>>>> nonsense.) >>>>>> >>>>>> A lot of the time when radios get zapped, it’s the power circuitry >>>>>> that’s damaged. You are still powering the radio over copper. Until you >>>>>> figure out how to power it with light, you are vulnerable to surges. >>>>>> >>>>>> It helps a lot if you put a DC surge protector right at the radio, >>>>>> but how many people do? >>>>>> >>>>>> And as long as you have a coax jumper to the antenna, you are >>>>>> vulnerable to surges finding a path from the antenna to ground via the >>>>>> radio. Again, can be mitigated with a good coax surge protector, but how >>>>>> many people do that? >>>>>> >>>>>> Inside a POE fed radio, there should be transformers in the data >>>>>> path, it’s the power path that has DC continuity. The Ethernet >>>>>> transformers should provide quite a bit of resistance to surges due to >>>>>> primary/secondary isolation, possibly a ground foil between primary and >>>>>> secondary, plus differential surges should be attenuated by transformer >>>>>> core saturation. So the most vulnerable circuitry is the power path. >>>>>> Which still exists if you have DC power and data over fiber. >>>>>> >>>>>> >>>>>> *From:* Mike Hammett <af...@ics-il.net> >>>>>> *Sent:* Monday, February 02, 2015 10:35 PM >>>>>> *To:* af@afmug.com >>>>>> *Subject:* Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With >>>>>> AFiber port? >>>>>> >>>>>> No more ESD issues. No more lightning issues. No more RF issues. >>>>>> >>>>>> *EVERYTHING* on a tower should be fiber. >>>>>> >>>>>> >>>>>> >>>>>> ----- >>>>>> Mike Hammett >>>>>> Intelligent Computing Solutions >>>>>> http://www.ics-il.com >>>>>> >>>>>> ------------------------------ >>>>>> *From: *"Brett A Mansfield" <br...@silverlakeinternet.com> >>>>>> *To: *af@afmug.com >>>>>> *Sent: *Monday, February 2, 2015 9:54:16 PM >>>>>> *Subject: *Re: [AFMUG] Survay Monkey Should UBNT Make a Radio With A >>>>>> Fiber port? >>>>>> >>>>>> I personally wouldn't want to have to run fiber and power to the >>>>>> airFiber. One cable is already enough. There is really no reason for >>>>>> fiber >>>>>> on any of their products. With that said, it's pretty cheap to put the >>>>>> SFP >>>>>> on. There is also no reason they cannot put them both on at least the >>>>>> airFiber. >>>>>> >>>>>> Thank you, >>>>>> Brett A Mansfield >>>>>> >>>>>> On Feb 2, 2015, at 8:45 PM, Jason McKemie < >>>>>> j.mcke...@veloxinetbroadband.com> wrote: >>>>>> >>>>>> It cannot possibly cost very much - a $35 rb260gs has a sfp port... >>>>>> >>>>>> On Monday, February 2, 2015, Peter Kranz <pkr...@unwiredltd.com> >>>>>> wrote: >>>>>> >>>>>>> I don’t think this passes the economic factors model for them.. I >>>>>>> don’t think they would sell enough of them to make it worth the >>>>>>> engineering, mold work, etc… >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> *Peter Kranz*Founder/CEO - Unwired Ltd >>>>>>> www.UnwiredLtd.com <http://www.unwiredltd.com/> >>>>>>> Desk: 510-868-1614 x100 >>>>>>> Mobile: 510-207-0000 >>>>>>> pkr...@unwiredltd.com >>>>>>> >>>>>>> >>>>>>> >>>>>>> *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *timothy >>>>>>> steele >>>>>>> *Sent:* Monday, February 02, 2015 4:57 PM >>>>>>> *To:* af@afmug.com >>>>>>> *Subject:* [AFMUG] Survay Monkey Should UBNT Make a Radio With A >>>>>>> Fiber port? >>>>>>> >>>>>>> >>>>>>> >>>>>>> posting this Survay on All the forums Want to see what you guys >>>>>>> think Should UBNT Make A Radio with a Fiber Port? I Will Send the Graph >>>>>>> to >>>>>>> the UBNT Team >>>>>>> >>>>>>> >>>>>>> >>>>>>> https://www.surveymonkey.com/s/8SPM9NT >>>>>>> >>>>>>> >>>>>>> >>>>>>> Thanks! >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>> >>> >>> >> >> > >
