XT-511-US-AT AT&T LTE and IP Communicator for Interlogix Simon Panels


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The XT-511-US-AT provides dual-path connectivity for an Interlogix Simon Series Alarm Panel. With this communicator, a compatible Interlogix System will communicate across the AT&T LTE network and a local IP network. A Z-Wave Plus controller is built-in. Buy the XT-511-US-AT here.
  • Z-Wave
  • Z-Wave Plus
  • Home Assistant
  • Google Home
  • Amazon Alexa
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If you need a reliable dual-path communicator for an Interlogix Simon System, then you can get great results with the XT-511-US-AT. This communicator connects across the AT&T LTE Network and a local IP network to access the Servers. This is needed for monitoring service.

Without an active communication path, your Interlogix Alarm Panel will have no way of sending out signals during alarm events. This makes adding a fast and trustworthy communicator one of the most important upgrades you can make for a Simon System. This particular communicator works across both the AT&T LTE Network and a local IP network. Whenever a security system event occurs, the panel will transmit signals across both paths. The signal received first by is processed and forwarded to the monitoring station, if enabled. The signal received last is discarded. In this way, ensures that the fastest signal path is used for each signal sent.

Having a good backup communication path is crucial for anyone who relies on IP alarm monitoring. That is exactly what you get with the AT&T LTE Network. The ability to communicate across a cellular network is extremely important during internet outages and power outages. AT&T has vowed that they will support their LTE network well into the very distant future. With this communicator, you are "future-proofing" your system and providing a long-term solution for monitoring.

End users will also appreciate the integrated Z-Wave Plus controller that comes built-in with the XT-511-US-AT. By activating this communicator, you can start building a complete Z-Wave Network for use with the platform. This means adding a variety of Z-Wave smart home devices, including smart lights, locks and thermostats. Although you can certainly use classic Z-Wave devices with this hub, you should strongly consider adding Z-Wave Plus devices if possible. Z-Wave Plus devices will provide superior range and battery life when compared with their classic Z-Wave counterparts. Another benefit is that you can use the platform to create Z-Wave smart scenes for automatic device operation based on a schedule or with predetermined system events.

The use of this alarm monitoring communicator requires a Gold Level Plan or higher from Alarm Grid. If you choose a plan that offers central station service, then will automatically route any alarm signals to a central station when an alarm occurs. This is necessary for automatic emergency dispatch. Having access to will also provide you with the ability to use the website or mobile app. The service is excellent for arming and disarming, checking current system status, controlling Z-Wave smart home devices, viewing the live feed for Security Cameras, and more. Access to this platform will be included with your monitoring plan.

This communicator works with any Interlogix Simon XT (Version 1.3 or higher), Simon XTi, Simon XTi-5, or the new Simon XTi-5i Panel. If you find that Verizon service works better in your area, you can purchase the Verizon LTE Dual-Path Communicator here.

Brand: Interlogix XT-511-US-AT Compatible Products

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