Required equipment:
Computer
RS485 To USB Converter & two 0.5mm thick communication cables. The length of the cables is determined by the distance between the RS485 to the USB converter and the computer
Screwdriver (Slotted & Phillips)
SIM Card
SD Card
Elara Gateway
Elara Metal Box/Tray
Power cables for the Elara gateway - two cables with a thickness of 0.5mm. The length of the cables is determined by the distance between the power supply and the Elara gateway.
Power source for the Elara gateway - 12-60v
Instructions
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 circuit and can be very dangerous.
2. Open the Elara cover and make sure the SD Card is properly inserted.
Each unit should be fitted with an SD Card, on which all the configuration files of the Elara and the connected devices & sensor, will be on.
Place the SD card inside its designated slot, as shown in the pictures:
3. Make sure the SIM card s properly inserted.
Each unit should be fitted with a Nano SIM card (12.3mm x 8.8mm) which will enable cellular data communication between the Elara and Galooli cloud servers.
Insert the SIM into the device until you hear a click
4. Connect the backup battery (if it is not coming from the factory connected). Close the Elara cover at the end of the process.
5. Connect the green connectors to the Elara, this will supply power, and grounding, and extend its inputs to the gray terminal.
Elara supports the "Daisy Chain" connection - instead of running two separate wires from each meter, you can connect a variety of accessories together.
6. Connect the GSM antenna to its dedicated socket.
7. Make sure the Status LEDs are blinking as follows:
Status 1 LED is blinking Green color, one short blink every ~1 second
Status 2 LED is blinking Green color, short blinks
COM (Modem) LED is blinking fast, short blinks
8. If all three conditions are met proceed to the next configuration step - How to configure APN & Cloud Server.