The device will bring 4G LTE-M connectivity to all VE.Direct-enabled devices within the first five years without having to pay any monthly rental fees or subscription fees. Global connectivity of 4G LTE-M LTE-M is an abbreviation of LTE Cat-M1 or Long Term Evolution (4G) category M1. This cellular technology is designed to connect IoT devices to existing 4G towers while using low energy consumption. LTE-M does support handover and roaming, so this device can be used in mobile vehicles like campers. Check the list in our GlobalLink 520 manual to see if LTE-M has been officially confirmed to be available in your area. As local providers roll out support, coverage is increasing every week. System monitoring and control GlobalLink 520 has two communication ports, which can connect up to two VE.D (such as BMV battery monitor and/or MPPT solar controller) directly to VRM. With two digital inputs, they can also be used as pulse counters and a remote control relay. They are an ideal solution for monitoring and controlling your installation. Built-in antenna GlobalLink 520 has a built-in antenna, which is designed to work on a global scale. However, if you need better reception or want to install the module in a multi-purpose truck, you can also install an external antenna. Victron Remote Management The online Victron Remote Management (VRM) portal allows you to access the installation anytime, anywhere.