Plug Adapter Cable in Between

  1. Main switch OFF
  2. Rear panel is open
    1
    Unplug the XR_186 plug.
    2
    Plug-in the attached adapter cable at the CPU (XR_168).
    3
    Connect the plug XR_186 at the adapter cable.
    4
    Plug-in the 3-pin plug of the light barrier control unit into the free socket.