Hello everyone,
I’m working with 300m cables that carry 220VAC ±10% to power a supply inside the ROV, which then provides 12V. For the communication interface, I’ve been using a twisted pair, but some of the cables have failed on the twisted pair side, while the 220VAC line is still working fine.
I’ve read that there are devices that can transmit data over 220VAC lines using PLC (Power Line Communication), a technology often used in homes where walls interfere with wireless signals.
Has anyone here tested PLC over this kind of distance (around 300m)?
There’s not enough information to meaningfully comment here - if your communication wires are thinner then it makes sense they’re more prone to damage, and you haven’t specified what kind of cable design you’re using, or whether you’re following its minimum bend radius requirements and the like.
Our Fathom-X boards use HomePlug AV, which is a protocol intended for power line communication. That works up to 300m, so with the right tether and PLC module I expect 300m should be ok, as long as you have reasonably low bandwidth requirements.
