Robustel B015000002 4G Router, 5x Ethernet with 4x PoE, 1x RS485, 2x DI, 2x DO, WiFi (R2120)

The R2120 is an industrial cellular PoE router that is equipped with five Gigabit Ethernet ports, including four PoE ports, along with two digital inputs, two digital outputs, and an RS-485 serial port.

Enhanced PoE-PSE Functionality: The R2120 features four PoE-PSE ports compliant with the 802.3af and 802.3at standards, enabling seamless power and data transmission through a single Ethernet cable, which simplifies field installation.

Remote PoE Device Management: In addition to standard PoE-PSE functions, the R2120 supports advanced remote management capabilities. Users can conveniently schedule restarts or power cycles for PoE devices as needed, enhancing operational control and efficiency.

• Highly stable 4G/3G/2G cellular connectivity
• Product Mounting Options - Desktop Mount, DIN Rail Mount, Wall Mount
• Dual SIM card slots for redundant communications
• Supports Ethernet, Wi-Fi, and Cellular internet with auto-failover
• 5 x 1000 Mbps Ethernet ports, including 4 PoE-PSE ports compliant with the 802.3af and 802.3at standards
• 2 x Digital Inputs (DI) and 2 x Digital Outputs (DO) for simple monitoring and control
• 1 x RS-485 port for connection to industrial/legacy devices
• Fully programmable operating system with well-documented Software Development Kit (SDK)
• Multiple VPN options available, including DMVPN and IPSec
• Free cloud management platform – RCMS with remote PoE device management support

4G: LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28
LTE TDD: B40
3G: WCDMA: B1/B2/B4/B5/B8
2G: GSM/EDGE:B2/B3/B5/B8

Industrial Dual-SIM Cellular PoE-PSE Router with RS-485

The Robustel R2120 is a compact, ruggedized cellular router with integrated Power over Ethernet (PoE), built to simplify deployment and power management in distributed IoT environments.

Designed for industrial use cases, the R2120 combines 4G LTE connectivity with advanced networking features, offering a seamless edge-to-cloud bridge for critical applications.

With five Ethernet ports, four of which support PoE (PSE)—plus RS-485 serial, digital I/O, and dual SIM support, the R2120 enables rapid deployment of remote IP devices such as cameras, sensors, and access controls, all powered and connected through a single device.

DUAL-SIM CELLULAR
4G/LTE, 3G & 2G with Dual-SIM Card support for failover

PoE-PSE
4× IEEE 802.3af/at PoE-PSE Ethernet ports 

INTERFACES
1x WAN, 4x LAN, 1x RS-485,
2x DI/DO

OPERATING SYSTEM
RobustOS – Lightweight Linux kernel with full SDK

RCMS ON-BOARD
RCMS Cloud device management enabled

Example R2120 Use Cases

• IP Camera Uptime - Power and manage remote CCTV or NVRs at construction sites or factories—reboot PoE devices via RCMS and maintain always-on connectivity with dual-SIM LTE.
• Street Light Connectivity - Delivers reliable, encrypted connectivity between street-light controllers and management software, so you can schedule dimming, track performance, and act on alerts faster.
• Smart Parking Enablement - Provides secure 4G/LTE backhaul for ANPR cameras and gate controllers. Enabling real-time plate data to your parking platform with central monitoring and diagnostics.

This Device is RCMS Ready

RCMS is a cloud-based IoT device management platform that gives you real-time visibility across your entire Robustel fleet. So you can troubleshoot, update, and optimize performance from anywhere at anytime, without sending engineers to site.

Package contents:

1 x R2120 Router (B Code: B015000002)
1 x DIN Rail Mounting Kit
2 x Cellular Antenna
2 x Wi-Fi Antenna
1 x Power Adapter