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BZ Gateway LED Indications and Patterns

BZ Gateway Application Status
Status LED Pattern Notes
Last upload successful 1 white LED flash every 30 seconds (may be followed by red LED flashes, see below)  
Last upload failed (any reason) No white LED flash  
Low battery 1 red LED flash every 30 seconds (may be combined with white flash)
  • Plug-in device to initialize battery charging
  • If device is already plugged-in, allow batteries up to 30 minutes to charge
Weak cellular signal 2 red LED flashes every 30 seconds (preceded by white LED flash indicating last upload was successful)

Consider relocating device to area with better cellular sign. Use Signal Finder Mode (SFM) to locate better signal.
No cellular signal 2 red LED flashes every 30 seconds (without white LED flash, indicating last upload failed)
  • Relocate device to area with better cellular sign. Use Signal Finder Mode to locate better signal.
Not registered with cellular provider, or unable to activate cellular data connection, or not registered with SmartSense 3 short red LED flashes, every 30 seconds (no white LED flash as it is not possible to successfully upload data in this state)
  • Contact SmartSense by Digi
Hardware failure 1 red LED flash every 2 seconds (this may be combined with white LED if last upload was still successful despite hardware failure)
  • Contact SmartSense by Digi
AC power present Blue LED (near power receptacle) on  
No AC power Blue LED off
  • Double-check that power adapter is plugged in to both the BZ Gateway and wall receptacle

 

 

BZ Gateway Application Events
Event LED Pattern Notes
Powered-on (by pushing button or plugging-in) White LED on for 5 seconds  
Button depressed White LED on immediately  
Button released after less than 2 seconds Status Report:
  1. Both white and red LEDs off for 0.5 second
  2. White LED on for 1 second
  3. Red LED on for 1 second
  4. Both white and red LEDs off for 0.5 second
  5. White and red LEDs flash status code as described above
  
Button held for more than 2 seconds White LED flashes rapidly
  • Release button to start Signal Finder mode
Button released after more than 2 seconds and less than 5 seconds Signal Finder mode, signal strength:
  • 0/10 - red LED blinks every 200ms
  • 1/10 - red LED blinks every 300ms
  • 2/10 - red LED blinks every 400ms
  • 3/10 - red LED blinks every 800ms
  • 4/10 - white LED blinks every 800ms
  • 5/10 - white LED blinks every 700ms
  • 6/10 - white LED blinks every 600ms
  • 7/10 - white LED blinks every 500ms
  • 8/10 - white LED blinks every 500ms
  • 9/10 - white LED blinks every 300ms
  • 10/10 - white LED blinks every 200ms
  • Momentary button press will exit Signal Finder mode
  • Signal Finder mode will time-out after 3 minutes
  • Signal strength 4 and higher (white LEDs) is generally acceptable and will prevent weak signal strength status warning
Button held for more than 5 seconds Initialize power-down:
  • Red LED continuously fades from 100% to 0% brightness and then repeats
  • Release button to confirm power-down
  • Continue holding button more than ~10 seconds, i.e. through device reset, to avoid powering-down
Button released after more than 5 seconds and less than ~10 seconds Finalize power-down:
  • Red LED continues continuous fading until power-down is complete
  • Fading stops, and both LEDs off when power-down is complete
  
Button held for greater than ~10 seconds Device reset:
  • Hardware undergoes hard reset
  • White LED on for 5 seconds (same as power-on, above)
  • Duration that button must be held to trigger a reset varies with temperature. It may be as short as 8 seconds and as long as 20 seconds.
Button released after more than ~10 seconds  
  • Neither continuing to hold the button or releasing the button after a device reset has any effect

 

 

BZ Gateway Firmware Update
Event / Status LED Pattern Notes
Verifying installed firmware White LED on
  • The BZ Gateway validates its firmware every time it (re)boots
  • Firmware validation requires less than 0.5 second
  • White LED will not be visibly turned off between end of validation and beginning of application launch (after which white LED will remain on for 5 seconds)
Connecting to firmware server 1 white LED flash every 1 second
  • If firmware server is reachable, a connection should be established in less than 60 seconds
  • If the firmware server is unreachable, the device will continue to automatically retry. No user intervention is necessary
Downloading and installing new firmware 2 white LED flashes every 1 second
  • Firmware download should complete in 10 minutes or less
Battery too discharged to download new firmware 1 white LED flash and 1 red LED flash every 1 second for 5 seconds of every minute, i.e.
  • White LED on for 100ms
  • Both LEDs on for 400ms
  • Red LED on for 100ms
  • Both LEDs on for 400ms
  • Repeat the above a total of 5 times
  • Both LEDs off for 55 seconds
  • Repeat all of the above indefinitely
  • Plug-in device to initialize battery charging
  • If device is already plugged-in, allow batteries up to 30 minutes to charge.
Hardware failure 1 red LED flash every 2 seconds
  • Contact SmartSense by Digi

 

Note: Firmware updates happen infrequently and one should not expect to observe these LED patterns with any regularity.

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