I designed an addressable F&G system with SCAME (S 81) for a Cable Gallery (like a tunnel) with a 2 km length. So, the loop length is 4 km (go and back), the first F&G devices have been installed after 1 km from the F&G system (It means the installed detectors are occupied only 2 km of the loop).
Since it is said there is a limitation of 3 km for an addressable loop, please guide me with a solution for using this system without the relocating of the F&G panel.

 

Hello,

You already have a thread for this:
F&G addressable loop more than 3 km

Bertus