Is there anything I should do before starting up my CSMP Device?

Is there anything I should do before starting up my CSMP Device?

It’s best to turn on the device when it is in the range of supported cellular LTE-M (a.k.a. Cat-M1) networks. During the initialization, the device will attempt to connect to the LTE-M network and will start reading the probe/sensor and sending their values to the cloud servers. If there is no network in range (indicated by Status red LED flashes at the end of the join procedure), the device will not be able to join and will retry on the next scheduled update period. After a few hours of retries with no success in joining the network, the device will switch to less frequent retries to conserve the battery.

When the device is first powered up in a new cellular service area, it may take a long time to search all cellular bands and carriers to successfully join the network. The join procedure may time out (indicated by Status red LED flashes) and slow down the join procedure re-tries. To ensure cellular network connectivity in the installation area and to speed up the network join, repeatedly press the User Button after red LED flashes to manually force the rejoin procedure. 


When the join procedure completes without any red LED flashes (and only with long green LED flashes), or as indicated on the Status tab of the ZenConfig smartphone app, the device is fully operational and connected to the cellular network. 


However, if after the repeated User Button presses over 10-15 min period, the red LED still flashes, there might not be a supported cellular network coverage at this location. Relocate the device to a different area and try again.


Note that the device’s cellular modem can have very long response times (up to 5 minutes) where there is no LED activity. Do not turn off the power to the device at those times, since this may corrupt the internal state of the modem.


Once the first network join is successfully completed, the subsequent power ups should take a short time.


To learn more about your CSMP device, see the CSMP Device User Guide.

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