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Telit Modules with Super SIM

Super SIM does not support NB-IoT.

Initialization

Only configure the modem’s Radio Access Technology (RAT) preference for Cat-M1. To do so, issue AT#WS46=0.

A parameter of 2 instead of 0 indicates both Cat-M1 and NB-IoT. Do not select 1 (NB-IoT only). The default is 0.

Bring up a data connection

  1. Set the APN: AT+CGDCONT=1,"IP","super".
  2. Activate a PDP context: AT#SGACT=1,1.
    • This will yield the IP address.

Perform a ping

To perform a ping to a remote host after bringing up a connection as described above, issue AT#PING="8.8.8.8". This will yield:

#PING: 01,"8.8.8.8",2,109
#PING: 02,"8.8.8.8",1,109
#PING: 03,"8.8.8.8",1,109
#PING: 04,"8.8.8.8",1,109
OK

Perform an HTTP GET

  1. Set the target server: AT#HTTPCFG=0,"jsonplaceholder.typicode.com".
    • 0 is the HTTP “profile ID”.
  2. GET a resource: AT#HTTPQRY=0,0,"/todos/1".
    • The first parameter is the profile ID.
    • The second 0 is the command: 0 = GET.
    • The string is the path to the required resource.
  3. The modem will issue an outcome URC: #HTTPRING: 0,200,"application/json",83.
    • The first parameter is the profile ID.
      • The second parameter is the HTTP status code.
    • The final parameter is the number of received bytes.
  4. Read the data: AT#HTTPRCV=0,0.
    • The first parameter is the profile ID.
    • The second parameter is the number of bytes to read: 0 = all.
  5. The modem will return the data:
    <<<{ 
       "userId": 1,
       "id": 1,
       "title": "delectus aut autem",
       "completed": false
    }

Data-centric attach mode

To set the ME910C1 to force data-centric attachment, issue AT+CEMODE=2.

The parameter’s value is as follows:

  • 0 = PS mode 2: EPS only, data centric
  • 1 = CS/PS mode 1: voice centric
  • 2 = CS/PS mode 2: data centric
  • 3 = PS mode 1: EPS only, voice centric

This setting is non-volatile.

Low-power modes

The ME910C1 supports the eDRX and PSM low-power modes. The commands to enable each of these are:

  • eDRX: AT+CEDRXS (see also AT#CEDRXS for “extended eDRX settings”).
  • PSM: AT+CPSMS

Using these features, but especially PSM, can make the modem inaccessible to the terminal during its sleep time. It’s best to experiment with these features with the modem local. To disable all power saving, send:

AT+CEDRXS=0
AT+CPSMS=0

You can learn more about implementing these modes in our low-power usage documentation.

Known issues

None at this time.

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