Re: [AFMUG] fiber/power on POPs

2017-12-18 Thread Josh Baird
Yeah - Nova 230's on these builds. We will have an EdgePoint at the top to power ePMP and backhauls. My initial thought was to use a 5Ch PDU from PF, but I didn't want to have to put a SiteMonitor Base II+5 Ch PDU in the breakout box. But really - I think it's the best solution. It also gives

Re: [AFMUG] fiber/power on POPs

2017-12-18 Thread George Skorup
For a simple setup like Steve's dual ODU, I'd probably cheat and do something like a 4 or 5A fuse at the bottom, assuming about 80W per radio. Plus they're on the same antenna, height, power supply, bonded together, etc. For the single run scenario anyway. If it was dedicated runs, then yeah,

Re: [AFMUG] fiber/power on POPs

2017-12-18 Thread Carl Peterson
My feeling on topside breakout is that it is easier to replace a fuse then everything but it sucks to climb to replace a fuse if that is really the only issue. If I am breaking out up top, I use a fused dc buss with fuses a bit larger then they should be up top and then fuse for total load at the

Re: [AFMUG] fiber/power on POPs

2017-12-18 Thread Steve Jones
this is a good point, didnt think about that On Mon, Dec 18, 2017 at 8:37 AM, Josh Baird wrote: > In this scenario - would you fuse each DC run from the small top-enclosure > (where your power/fiber breaks out) to the radio(s)? > > I'm looking at doing something similar to

Re: [AFMUG] fiber/power on POPs

2017-12-18 Thread Josh Baird
I typically individually fuse each component on the rail.. just trying to figure out what the best scenario for a split-top/bottom install would be. I'll definitely put a fuse between the rail and DC cable (that runs to the top) in my bottom-box. Would you also fuse each breakout at the top?

Re: [AFMUG] fiber/power on POPs

2017-12-18 Thread Carl Peterson
Don't you have fuses on your 48V rail? On Mon, Dec 18, 2017 at 9:37 AM, Josh Baird wrote: > In this scenario - would you fuse each DC run from the small top-enclosure > (where your power/fiber breaks out) to the radio(s)? > > I'm looking at doing something similar to power

Re: [AFMUG] fiber/power on POPs

2017-12-18 Thread Josh Baird
In this scenario - would you fuse each DC run from the small top-enclosure (where your power/fiber breaks out) to the radio(s)? I'm looking at doing something similar to power some Baicells eNBs. TSP/BCM at the bottom, 14AWG DC/fiber up the tower to a small enclosure where the power/fiber will

Re: [AFMUG] fiber/power on POPs

2017-12-15 Thread Josh Baird
We have always gotten our hybrid cable from BestTronics. Great to work with - definitely recommend them. On Fri, Dec 15, 2017 at 6:22 PM, Seth Mattinen wrote: > On 12/15/17 15:03, Robert Andrews wrote: > >> I was just looking at stuff on mechanical splices, some commented

Re: [AFMUG] fiber/power on POPs

2017-12-15 Thread Seth Mattinen
On 12/15/17 15:03, Robert Andrews wrote: I was just looking at stuff on mechanical splices, some commented that they were temporary..   True? It used to be that the index matching gel could dry out. I don't know if that's still true or not. ~Seth

Re: [AFMUG] fiber/power on POPs

2017-12-15 Thread Seth Mattinen
On 12/15/17 11:48, George Skorup wrote: Get the Shireen DFP-1246. That has a red and a black 12AWG. And 4x single-mode fibers. You could do even one single run of that and 4x BiDi optics. Or a run for each radio if you're stuck with duplex optics. The reel is 500', so I would just do two

Re: [AFMUG] fiber/power on POPs

2017-12-15 Thread George Skorup
Get the Shireen DFP-1246. That has a red and a black 12AWG. And 4x single-mode fibers. You could do even one single run of that and 4x BiDi optics. Or a run for each radio if you're stuck with duplex optics. The reel is 500', so I would just do two dedicated runs. Bring it up to a small

Re: [AFMUG] fiber/power on POPs

2017-12-15 Thread Steve Jones
pares of each. We end up with lots of > slack, but I don't see that as a bad thing. > > > > -- Original Message -- > From: ch...@wbmfg.com > To: af@afmug.com > Sent: 12/15/2017 12:26:37 PM > Subject: Re: [AFMUG] fiber/power on POPs > > Well, you need to convey 105/48=

Re: [AFMUG] fiber/power on POPs

2017-12-15 Thread Adam Moffett
parts. For cable lengths we were getting 100' and 200' and we have spares of each. We end up with lots of slack, but I don't see that as a bad thing. -- Original Message -- From: ch...@wbmfg.com To: af@afmug.com Sent: 12/15/2017 12:26:37 PM Subject: Re: [AFMUG] fiber/power on POPs Well, you

Re: [AFMUG] fiber/power on POPs

2017-12-15 Thread chuck
Well, you need to convey 105/48=2.187 amps. 24 gauge is 2.5 ohms per 100 feet. If you used 4 wires for one polarity and 4 wires for the other polarity, you would have .625 ohms per polarity or 1.25 ohms per loop/100 ft. So 1.25 * 1.2 = 1.5 ohms for the 120 foot loop. 1.5 * 2.187 = 3.28