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What is the minimum panel firmware required on the Interlogix Simon XT to work with 3G or 4G modules?

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The Interlogix Simon XT panel requires specific firmware versions in order to communicate with 3G or 4G modules. 

  • A 3G (HSPA/CDMA) module requires panel firmware version 1.2+. 
  • A 4G (LTE) module requires panel firmware version 1.3+. 

To find the firmware version of an Interlogix Simon XT panel: