SR2 not communicating with DSM2

  • We have a Competition SR2, connected to 2x Spektrum SRXL2 Receivers in RX1 and RX2 ports.
    Both receivers are bound to the JR Transmitter (DSX12) and show solid light when everything is powered up confirming it is bound, but the PowerBox does not see the Recievers.


    Display shows RX 1 LOST etc.


    PowerBox identifies the receivers, in General Settings it shows SRXL2, but there seems to be a communication problem.
    The unit is not in a model, but just on the bench at this stage so Setup Assistant has not been used as yet.


    Any help appreciated.


    Thank you.