Cablage Volet Roulant Somfy -

L (brown) ── switch UP ── motor brown L (black) ── switch DOWN ── motor black N (blue) ── motor blue Earth ── motor green/yellow

IO bus + ── (red) ── all motors in parallel IO bus - ── (black) ── all motors in parallel Control unit (e.g. Chronis IO) wired anywhere on bus If you need the (e.g. Oximo 40, LT50, Altus RTS IO wired), let me know and I can draw it for you or provide the official diagram code. cablage volet roulant somfy