I’m stringing aerial fibre between poles for about 1km. Along the way, I’d like to install security cameras. Each pole has power (347V, with 120V 50kVA control transformers), so I have capacity to power the switches.
The only solution I’ve found, so far, is to use a single copper-fibre media converter AND a PoE media converter with dual Ethernet ports and a single SFP port. The PoE port can power the camera and the second is connected to the single-port media converter.