Robustel R1520-4L (S) Dual-SIM Cellular Router - Introduction
The Robustel industrial dual SIM cellular VPN router (R1520) is a rugged cellular router can support 2G, 3G, and 4G LTE Cat 4 networks. It provides high speed wireless network bandwidth for devices through wireless connections to ensure stable wireless network connections. R1520 is a powerful router developed from RobustOS, a Robustel self developed and Linux based operating system which is designed to be used in Robustel devices. The RobustOS includes basic networking features and protocols providing customer s with a very good customized user experience, which is more diverse, convenient, and practical.

Meanwhile, Robustel offers a Software Development Kit (SDK) for partners and customers to allow additional customization by using C. It also provides rich Apps to meet fragmented IoT market demands.

Hardware features include optically isolated digital inputs and outputs as well as a 10-bit analogue input capable of interfacing directly with sensors in the range of 0 to 24Vdc or 0 to 20mA.
R1520 also has a 2-wire RS485 interface for connection to legacy instruments with full support for Modbus. The RS232 port features RTS/CTS lines so the product can accommodate applications that require hardware handshaking.
KEY FEATURES
- Cost-effective & high performance 3G/4G router
- Rugged design with 9 to 36Vdc power
- Optically isolated digital IO
- 10-bit Analogue interface for direct sensor connections
- Supports Dual SIMs & Wi-Fi/Ethernet as WAN
- Cellular keep-alive and fast failover
- IPsec/OpenVPN/GRE/L2TP/PPTP/DMVPN supported
The R1520 router from Robustel is a versatile 4G router with 5 x Ethernet ports. It is ideal for Smart Cities, and Retail applications.
RCMS is Robustel’s free router monitoring service that is fully compatible with the R1520. It allows customers to see a location overview of their routers quickly and simply on a map.Features such as data usage, signal strength, current network and much more can then be viewed on a per router. Over-the-air updates are supported for Firmware, router configuration and Apps serving as essential ‘insurance’ if anything was not quite right during deployment.
For a free trial of RCMS, visit: https://rcms-cloud.robustel.net

Note: Datasheet can be downloaded from the attachments section.
Three Ireland Approved Firmware Version: 5.1.0 (6edc0bae)
Three Ireland Approved Hardware Version: 1.2