I would also run 240V AC out there, not DC. Unless you are needing to stay "low voltage" for permit/licensing reasons.
On Tue, Jul 5, 2016 at 7:59 PM, Chris Fabien <[email protected]> wrote: > I would use 14-2 UF cable, direct buried next to the fiber, or pulled into > conduit with the fiber if you are doing conduit. That's going to be much > cheaper than SOOW type rubber jacket cable, or pretty much any other > options. 1000ft spool costs us about $250, and there are direct bury splice > kits for it to make a waterproof buried splice. > > On Tue, Jul 5, 2016 at 7:25 PM, Eric Kuhnke <[email protected]> wrote: > >> Due to terrain I'm helping somebody design a network link where a PTP >> radio will go on the side of a tree on the opposite side of a mountain from >> where AC power, a router and other network equipment is located. >> >> We're looking at 600 to 700 meters of singlemode fiber and a small NEMA4X >> junction box with the radio on the far side of the hill, containing a SC-SC >> patch cable bulkhead and a meanwell DC-DC converter. >> >> It looks like based on the wattage of the radio and voltage drop >> calculations for 18-2 cable that we can get away with a 56VDC power supply >> at the power source, dropping to not lower than 35VDC at the receiving end, >> which will be fed into a DC-DC converter to bring the output back up to >> 52.5VDC for the radio. >> >> If you had to run 600-700m of 18AWG cable outdoors through a forest, how >> would you do it? SJOOW type cable may not hold up over a long enough time. >> Ideally something that is more armored than SJOOW (it can be much less >> flexible if needed). Cost is somewhat of a factor. >> >> >> >
