The Resideo LTEM-PIV is a Verizon LTE Cat-M1 cellular and ethernet dual-path communicator. Dual-path communication is always recommended in order to receive the fastest and most consistent alarm communication. As a UL-985 Listed device, the LTEM-PIV is suitable for use in residential systems that contain fire sensing devices.
Resideo recently introduced the LTEM-PA and LTEM-PV communicators. These are also dual-path communicators that use LTE Cat-M1 cellular, and support an ethernet connection, but these devices have not been certified for UL-985 Household Fire installations. This is due in part to their modular design and ability to use the PROWIFI, or PROWIFIZW and PRODCM Dialer Capture Module.
The Verizon LTE Cat-M1 network is the segment of the LTE network that was created for IoT (Internet of Things) use. It has a lower bandwidth capability, with slower upload speeds in particular. But the data packets sent and received by alarm systems are so small compared to the data requirements for most smartphone or tablet use, that the difference in speed is virtually undetectable when used for these communicators.
When it comes to AlarmNet communicators that support a dual-path connection, the internet option is always used first. This is considered the primary path, as internet signals will nearly always arrive before cellular signals if both are sent at the same time. If an internet connection is not available, then the signal is automatically sent via the cellular, or secondary path. The dual-path communicator reaches out to the AlarmNet server every few seconds. Each time, the AlarmNet server responds. If the communicator reaches out, but receives no response, it knows the primary path is compromised in some way, and automatically switches to the cellular path. It can also use the cellular path to notify the monitoring station that the primary path has been compromised.
Being listed for UL-985 Household Fire doesn't mean that the LTEM-PIV doesn't support Total Connect 2.0. Even though it can't support the WIFI modules or the Dialer Capture Module, it can still be used to access AlarmNet's Remote Interactive Services, AKA Total Connect 2.0. With Total Connect 2.0, a user can check their system status, arm or disarm the system, and manually control automation devices, or create automation scenes for those devices. All from either an app or a website from any location where they have an internet connection available.