system BasicScenario {

importLib common.*; 
importCPS common; 

// declared rates are a comma-separated list of integers
// these implicitly declare timeout events, e.g., EventChannel.timeOut40

Rates 20;

Locations Board1, Board2, Board3;

// convention is that component instances that are 
// clients of data/event declare for each client port the corresponding
// server port...
//
//     connect ...<client port of current instance>.. to <server port>..

Instance EventChannel implements EventChannel on Board1 {
}
Instance GPS implements BMDevice on Board1 {
  connect this.timeOut to EventChannel.timeOut20 runRate 20;
} 

Instance AirFrame implements BMClosedED on Board2 {
  connect this.inDataAvailable to GPS.outDataAvailable runRate 20;
  connect this.dataIn to GPS.dataOut;
}

Instance NavDisplay implements BMDisplay on Board3 {
  connect this.inDataAvailable to AirFrame.outDataAvailable runRate 20;
  connect this.dataIn to AirFrame.dataOut;
}

}