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.
