Industrial
Electronic Devices
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User Manual
J1939 / MQTT - Converter
Document code: MN674-A044_ENG Revision 1.000 Page 9 of 34
LEDS:
The device has got four LEDs that are used to give information of the functioning status.
The various meanings of the LEDs are described in the table below.
LED
Normal Mode
Boot Mode
1: Device state (green)
Blinks slowly (~1Hz)
Blinks quickly:
Boot state
Blinks very slowly (~0.5Hz):
update in progress
2: MQTT communication
(green)
ON:
MQTT not connected
OFF:
MQTT connected
Blinking:
MQTT communication
Blinks quickly:
Boot state
Blinks very slowly (~0.5Hz):
update in progress
3: USB link (yellow)
OFF
ON
4: J1939 communication
(green)
Blinks when J1939 frames are received
Blinks quickly:
Boot state
Blinks very slowly (~0.5Hz):
update in progress
