User Guide | COMFORT SERENITY MQTT | NB-IoT / LTE-Cat-M1
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During the network attachment process, the green and red LEDs will alternately blink
for 50 ms every second.
If the network attachment fails, the red LED will stay on for 5 seconds. By default,
the product will attempt 2 network attachments every 12 hours. This mechanism
helps to preserve the product's battery life in case of a poor network connection.
These 2 parameters (number of network attachment attempts and waiting time
between two network attachment attempts) can be configured via the NFC IoT
Configurator app.
As long as the product has not been attached to the network at least once, for each
failed attachment attempt, the red LED will stay on for 5 seconds.
4.6.1.2 Manual Network Attachment
Once the network attachment is successful, the user can choose to manually attach
to a specific operator via the NFC IoT Configurator app.
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Go to the "CONFIGURATION" menu of the sensor => Select the
"NETWORK" section => Configure the "Network Selection" parameter to
manual mode => Specify the MCC-MNC code corresponding to the
network to which the product should connect in manual mode using the
"Network to Use in Manual Mode" parameter => Apply the new
configuration to the product via NFC.
It is also possible to select the technology used by the product to connect
to the network (NB-IoT or LTE-Cat-M1) using the "Connection Preference"
parameter.
Once the operator is selected, the product will automatically restart and operate on
that operator, even after subsequent power cycles.
