Receiver indicator lights

Receivers have the following indicator lights:

  • Ready light

  • Transmit light

  • Receive light

The Ready light in the corner of the receiver indicates the operational state of the receiver module. The Transmit and Receive lights flash green to indicate transmit and receive activity between the receiver and the clickers.

The following table shows the Ready light’s normal states. If the light’s behavior doesn’t match a state listed here, refer to Troubleshooting the receiver.

Ready light state



The receiver is disconnected from the computer.

Solid red

The receiver has power, but either it isn’t communicating with the computer or no class is started.

Solid green

The receiver is receiving power and communicating successfully with SMART Response software.