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How to interpret the LED status of the B820 Inovonics wireless Interface module.


B820 Inovonics wireless Interface module LED status.

Flash Pattern

  • Flashes once every 1 sec:

    • Normal State: Indicates normal operation state.

  • 3x Flash every sec:

    • Communication Error State: Indicates an SDI2 Communication error.

  • ON Steady:

    • Trouble State: Indicates a trouble condition exists.

  • OFF Steady:

    • LED Trouble State: Module is not powered, or some other trouble condition prohibits the module from controlling the heartbeat LED.

  • OFF for 3 sec, then flash:

    • Firmware version* Firmware Version: For example, if the version is 3.2.1, the LED pulses 3 times and pauses for 1 sec, pulses 2 times and pauses for 1 sec, and then pulses 1 time. After flashing the Firmware version, the heartbeat LED stays OFF for 3 sec before indicating the module state.