Aux power supplies used to power Independent Zone Controllers (IZC) must be common to the control panel. Connect the negative side of the power supply to Common on the control panel. Without this connection there will be no zone return to the panel.
Only use on-board zones or Octopopit zones for Independent Zone Controllers. Any other expansion device will not have a return path for zone negative.
End of Line resistors must not be connected on panel points used for Independent Zone Controllers. Termination is provided from the IZC. Bring the Green wire (burg) and/or Yellow wire (panic) directly to the associated On-Board zone or Octopopit zone.
Panels using the D279 or D279A must be configured to use 1K End of Line resistors or the internal termination provided by the IZC will conflict with the panel.
