Does the Honeywell LTE-XA or LTE-XV Work On a Honeywell VISTA-21iP?

Yes, the Honeywell LTE-XA or LTE-XV will work on a Honeywell VISTA-21iP. But you must first disable the panel's internal IP communicator before the external device will work. The LTE-XA or LTE-XV must then be activated for monitoring service with a monitoring plan that includes cellular service.

The Honeywell LTE-XA and LTE-XV are AlarmNet Cellular Communicators for Honeywell VISTA Security Systems. By installing and activating one of these communicators, your VISTA System can communicate with the AlarmNet360 servers across a cellular connection. This will allow your system to receive reliable and continuous alarm monitoring service. It will also allow you to control your system remotely using the Total Connect 2.0 platform, provided that the service is included in your monitoring plan. Total Connect 2.0 can be accessed using a smartphone or web browser. Remember that the VISTA-21iP must be running Firmware Version 3.13 or higher to support TC2. This is determined by the small back PROM Chip on the main board. You can buy a VISTA-21iP PROM Chip upgrade here.

Both the Honeywell LTE-XA and the Honeywell LTE-XV are LTE cellular communicators. This means that they communicate across LTE cellular networks. This is important, because LTE networks offer extremely fast and reliable speeds. Another benefit is that LTE networks are expected to be kept in service well into the very distant future, even as 5G cellular networks eventually become the gold standard. This can be seen in the name LTE, which stands for Long Term Evolution. The Honeywell LTE-XA connects with the AT&T LTE Network, while the Honeywell LTE-XV connects with the Verizon LTE Network. Both cellular communicators will essentially do the same thing, so just go with whichever network works best in your area.

In order to use any external communicator with a Honeywell VISTA-21iP Security System, you must disable the panel's internal IP communicator. This is unique to the VISTA-21iP, as the other panels in the Honeywell VISTA lineup do not have built-in communicators. The only exception is the Honeywell VISTA-21iPLTE, which is basically a newer version of the VISTA-21iP that can support a plug-in LTE communicator called the Honeywell LTE-21V. If you need help disabling the internal IP communicator for a VISTA-21iP System, please refer to this FAQ.