If you have two separate cat5e cables, one thing to do is use one cable with a VDSL2 30a bridge (be sure you're getting something that can use the 30a profile, not 17a, because it won't be near real 100BaseTX speeds). Or with a pair of such bridges in parallel so you can build a 2 x 100BaseTX 802.3ad. That's your link for data.
On the other cable, put something like a 200W rated power supply tuned to 58VDC. One of the better quality meanwells. Use four wires for positive and four for negative. On the load at the far end, put in a DC-DC converter that takes input from 36-72VDC and turns it into a stable 48VDC. Use that to power your equipment from DC using DC-DC PoE injectors, DC powered switch like Netonix, etc. On Sun, Feb 5, 2017 at 2:55 PM, Ken Hohhof <[email protected]> wrote: > Don't get confused that 328 feet is just a powering issue. There are > completely unrelated Ethernet and POE issues. 328 feet is magic for > Ethernet, not necessarily for POE, although they tend to go together. > > If you are feeding a micropop over 800 feet of buried Cat5 with no AC > power at the far end, you have your hands full. I would buy some VDSL > bridges (and spares), they aren't all that expensive, and after all you are > feeding a micropop. > > Next time, I would bury at least 6 strand fiber and at least 12AWG for > power (120VAC or 48VDC). And I would put it in conduit with a pull tape. > You don't want to spend all the time and money burying 800 feet and then > find out you buried the wrong thing. > > > -----Original Message----- > From: Af [mailto:[email protected]] On Behalf Of Adam Moffett > Sent: Sunday, February 5, 2017 4:05 PM > To: [email protected] > Subject: Re: [AFMUG] PoE Cat5/6 cable distances > > You could just run 3x 12ga and run the 110 AC all the way out there. > For a load as small as you're saying, you wouldn't even notice the voltage > drop. > > > ------ Original Message ------ > From: "Chuck McCown" <[email protected]> > To: [email protected] > Sent: 2/5/2017 3:52:24 PM > Subject: Re: [AFMUG] PoE Cat5/6 cable distances > > >I have run up to 600 volts on CAT 5. > > > >-----Original Message----- From: Dev > >Sent: Saturday, February 04, 2017 10:00 PM > >To: [email protected] > >Subject: Re: [AFMUG] PoE Cat5/6 cable distances > > > >> > Are you trying to exceed 100 meters? Is there a good reason not to > >>use > fiber + DC power? > > > >Maybe. My bigger problem is how to get 24 > >volts/whatever-that-can-be-regulated-down-to-24v to the other end of a > >800 foot wire run without too much voltage drop/heat so I could power > ><whatever-to-power-fiber-things+20watts> for a micropop without wire > >the size of my thumb. > > > >I guess I could run a transformer to up-convert from 110VAC to > ><something> and then another one on the other end to run smaller wire, > >but I don’t know if that’s practical vs just buying something off the > >shelf. Wondering if someone’s already solved the problem and can > >recommend what they did, besides google and guess. > > > >
