The red 'status' light indicates the connection status. There are three modes:

Solid status light: the Junxion Box is successfully connected to the Internet.

Blinking status light: the Junxion Box does not recognize the cellular PC Card modem or cannot connect to a cellular network. Check the status and settings in the Device Manager to troubleshoot. (Note that the status light also blinks briefly during the boot-up process.)

No status light: the device has just been turned on and is powering up (takes about two minutes).