The X-ACT Bridge Controller must be installed such that it can have radio contact through the XBee module with all the simulators (X-O, X-CAL or X-RPT).
The X-ACT Bridge Controller must also be within range of the X-ACT Tablet used for control.
When coonnected via WiFi, the range between the Tablet and the Bridge Controller is about 50 to 100 feet in a building, sometimes less depending on the building construction.