Required equipment:
...
Connect the Cabinet Tray to a power source via Main Input Fuse
...
.
The 
should be connected to the red part and the 
should be connected to the black part. If the connection is made the other way around, it will cause a short in the circuit and can be very dangerous.
...
2. Open the Elara cover and make sure the SD Card and the SIM card are properly inserted. Close the Elara cover at the end of the process.
How to insert SD card? https://galooli.atlassian.net/l/cp/T1fCA5EQ
...
Status 1 LED is blinking Green color, one short blink every ~1 second - OK 👍🏻
If the Status 1 LED isn’t blinking at all, it means the Elara isn’t getting power - please make sure the green connectors are correctly connected.
Status 2 LED is blinking Green color, short blinks - OK 👍🏻
If the Status 2 LED blinks fast red color, it means the SD card isn’t inserted - Please see how to solve it here - How to insert SD card?
If the Status 2 LED blinks slow red color, it means the configuration files on the SD card are missing/corrupted - Please see how to solve it here - How to import Elara files to the SD card?
COM (Modem) LED is blinking fast, short blinks - OK 👍🏻
If COM LED is blinking red color, it means there is no connection to the cloud server, please see how to solve it here - link
...