Installation

Mounting the module

CMi4130 is mounted in an Itron CF 51/55/ECHO II.

  1. Grab the device by the outer edges.

  2. Gently press it into position in the module slot.

Connection of the antenna

CMi4130 is available in two different versions, with internal antenna (CMi4130Int) and with external antenna (CMi4130Ext). The internal antenna is already connected in the CMi4130Ext.

External antenna
  1. Connect the antenna using the SMA connector.

  2. Route the antenna cable.

Caution

If using an external antenna, make sure to mount it at least 0.5 meters away from the meter in order not to cause interference.

Activating the module

Upon delivery, CMi4130 is set to passive mode, which means no messages will be transmitted from the module. The module can be activated in one of the following ways:

Via the module push button
Via Elvaco OTC app

Tip

The NFC field is easiest accessible if placing your phone at the lower left on the front side of the meter.

Joining the LoRaWAN network

When activated, the product will attempt to join the LoRaWAN network by the following sequence:

  1. Red LED – One flash

  2. Green and Red LED – Lights simultaneously up for 1 second

  3. Green LED – Several flashes while trying to connect to the LoRaWAN network

  4. Green LED – Lights up for 8 seconds when module succeeds in joining the LoRaWAN network

The network join sequence is illustrated in the figure below:

LED_indications_network_join_LoRaWAN_.png

Network join LED indication

If the module fails to join the LoRaWAN network, it will perform retries until it succeeds. The time between each attempt will increase for every attempt until it is performed once every day. A new join attempt cycle can be manually started anytime by using the push button to reboot the module or by deactivating and activating the module using the Elvaco OTC App.

When the module has joined the LoRaWAN network, it will perform three quick transmissions (regardless of transmit interval settings) before starting to use its configured transmit interval settings. By using the Elvaco OTC App, you can easily verify that the module is successfully communicating with the meter (“Meter communication”) and is connected to the LoRaWAN network (“Network joined”).

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