Robustel R1511p

Embedded Industrial 4G/LTE Router with 2 x LAN Ports +
Serial RS232 or RS485

The R1511P is an embedded variant of Robustel’s R1511 industrial router, built for OEMs and machine builders who need reliable cellular connectivity inside their own equipment — without the cost, size, or cabling overhead of a boxed router.

Compact and board-mounted, it delivers dual Fast Ethernet ports (configurable as LAN/WAN) plus a selectable RS-232 or RS-485 interface for direct connection to PLCs, controllers, and legacy serial devices. A built-in Modbus RTU to Modbus TCP gateway and transparent TCP/UDP serial tunneling make it easy to expose field data upstream without rewriting your application stack.

For backhaul, the R1511P supports 4G/LTE (with 3G/2G fallback), Ethernet, and optional Wi-Fi in AP or client mode, with automatic failover to keep services online. At scale, devices can be monitored, configured, and updated remotely through Robustel Cloud Manager Service (RCMS). For secure remote access, RobustVPN can assign a stable “fixed IP style” connection on any SIM, so engineers can reach equipment in the field without sending a technician.

The router runs RobustOS, giving you Web UI, CLI, and SMS management options, plus access to optional applications and SDK extensions for project-specific behavior.