@dvl
God people are cautious these days. 15yrs ago in soviet russia we used plain cat5 for 30+ meter links between 20 storey buildings. Sun, rain, snow, wind, birds, whatever - it worked for years.
The worst problem were some nylon clamps which attached utp to the metal string broke over time. But I bet it could live fine even without being attached to the string:)
@AMDmi3 Yeah, overthinking is hard.