structure=BooleanConsecutiveFunction[{2,2},{4,4}][Array[(Subscript[x, #1,#2])&,{4,4}]];
𝒟camera=ExponentialDistribution[1/6];
ℱ=FailureDistribution[structure,Join@@Array[{(Subscript[x, #1,#2]),𝒟camera}&,{4,4}]];
ℱnooverlap=FailureDistribution[(Subscript[x, 1])||(Subscript[x, 2])||(Subscript[x, 3])||(Subscript[x, 4]),{{(Subscript[x, 1]),𝒟camera},{(Subscript[x, 2]),𝒟camera},{(Subscript[x, 3]),𝒟camera},{(Subscript[x, 4]),𝒟camera}}];
𝒟standby=StandbyDistribution[𝒟camera,{𝒟camera,𝒟camera,𝒟camera},0.9];
ℱstandby=FailureDistribution[(Subscript[x, 1])||(Subscript[x, 2])||(Subscript[x, 3])||(Subscript[x, 4]),{{(Subscript[x, 1]),𝒟standby},{(Subscript[x, 2]),𝒟standby},{(Subscript[x, 3]),𝒟standby},{(Subscript[x, 4]),𝒟standby}}];

Plot[Evaluate@{SurvivalFunction[ℱ,t],SurvivalFunction[ℱnooverlap,t],SurvivalFunction[ℱstandby,t]},{t,0,15},Filling->Axis,PlotLegends->Placed[{"Consecutive","No overlap","Standby"},Below]]