Compact 4G LTE eSIM eUICC Gateway with Ethernet and Serial Connectivity
The Robustel R1511e is a compact industrial IoT router designed for 4G LTE Cat 4 applications where both Ethernet and serial equipment need secure, reliable connectivity. The router features an embedded eSIM eUICC with no physical SIM slot, allowing remote provisioning, operator switching and tariff updates over the air. This makes the R1511e a strong choice for large IoT deployments that need scalable management without site visits to replace SIM cards.
Two Fast Ethernet ports can be configured as LAN/WAN or dual LAN, giving flexibility in edge network design. A hardware selectable RS232 or RS485 interface allows direct integration with PLCs, meters, industrial controllers and legacy devices. With support for Modbus RTU to TCP gateway functions and transparent TCP/UDP data forwarding, the R1511e simplifies serial to IP conversion for M2M applications without modifying upstream systems.
Optional Wi-Fi (AP or Client mode) and automatic failover between 4G, Ethernet and Wi-Fi maximise uptime in remote or critical installations. RCMS enables full fleet management including device monitoring, configuration and firmware updates, while RobustVPN creates a fixed IP environment across any eSIM profile for secure remote access.
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