Robustel R2110e
eSIM Router

Industrial Dual-SIM 4G/LTE Router with 1x eSIM/eUICC, 1x 2FF SIM 4 x Gigabit LAN Ports

The Robustel R2110e is an LTE Cat-4 industrial router built for deployments where managing SIM logistics across geographies, carriers, or long device lifecycles creates operational friction. It shares the same proven hardware platform as the R2110, with one deliberate change: the second physical SIM slot is replaced by an embedded MFF2 eSIM compliant with GSMA SGP.22, producing a hybrid 1ร—Mini SIM (2FF) + 1ร—eSIM architecture that supports remote profile download, activation, switching, and removal โ€” without physical access to the device.

The practical implication is a different operational model. Where the R2110 suits stable deployments with locally-sourced SIM requirements, the R2110e is the right choice when connectivity management needs to live in software: because devices are geographically dispersed across carrier boundaries, because the device lifecycle will outlast the current carrier agreement, or because deployment scale makes per-device SIM handling impractical.

All core R2110 capabilities are carried over: WWAN/WAN/WLAN link redundancy with ICMP detection, cold and warm backup with load balancing, IPsec/OpenVPN/GRE/WireGuard VPN, four gigabit Ethernet ports (configurable as 1ร—WAN + 3ร—LAN), RS-232/RS-485 serial, isolated DI/DO, dual-band 802.11ac Wi-Fi, optional GNSS, and the full RobustOS platform with C/C++ SDK and App Centre.

eSIM/eUICC Support

Remotely provision and deploy up to 6 eSIM/eUICC Profiles

Wi-Fi

Dual-band 802.11ac Wi-Fi 5 on 2.4GHz and 5GHz ISM Bands

INTERFACES

1x WAN, 3x LAN or 4x LAN,
1x RS-232, 1x RS-485, 1x DI/DO

OPERATING SYSTEM

RobustOS – Lightweight Linux kernel with full SDK

RCMS ON-BOARD

RCMS Cloud device management enabled

R2110 Product Video

Example R2110 Use Cases

In-Vehicle Connectivity Hub

Provides secure LTE backhaul and onboard Wi-Fi for fleet operations. The hybrid SIM + eSIM architecture means carrier profiles can be switched remotely as vehicles cross regional boundaries or when contract terms change โ€” without retrieving the device or touching the SIM tray. Optional GNSS supports location reporting; RCMS centralises firmware updates, configuration, and eSIM profile management across the entire fleet from a single platform.

Intelligent Traffic Systems

Backhauls controller and signage data to your platform via encrypted tunnels; dual-link failover across WWAN and WAN maintains reachability. For multi-authority or cross-border deployments where infrastructure is managed under different carrier agreements, eSIM profile switching allows connectivity to be reassigned remotely as operational boundaries or contracts change โ€” without dispatching technicians to roadside cabinets.

Digital Signage & Screens

Delivers reliable LTE backhaul from media players to your CMS, keeping content updates and monitoring data flowing. For large screen networks spanning multiple cities or regions, the R2110e’s remote eSIM provisioning removes the need to pre-configure SIMs per location or send field teams to swap carriers when a site moves to a different network contract. Centralised management via RCMS covers configuration, firmware, and connectivity from a single console.

Looking for more use cases?


With millions of Robustel devices deployed across more than 100 countries, itโ€™s impossible to capture every use case above. Explore the links below to discover some of the exciting and innovative ways our technology is making an impact worldwide.

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.

Product Mounting Options

Desktop Mount

DIN Rail Mount

Wall Mount

System Architecture

Operating System

RobustOS

CPU

Dual-core MIPS, 880 MHz

RAM

512MB

Flash

32MB

Cellular

Supported Technologies

4G/LTE, 3G, 2G

Antennas

2 (MAIN + DIV)

Connector

SMA-K

SIM

1x eSIM/eUICC (MFF2) and 1 x Mini SIM (2FF)
SGP.22 eSIM, profile download and removal operations
Typically supports up to 8 eSIM profiles

Ethernet

Ethernet Ports

4 x 10/100/1000 Mbps, 4 x LAN by default, can be configured as 1 x WAN + 3 x LAN

Magnet Isolation Protection

1 KV

PoE In (Optional)

PoE Ports

WAN1

PoE Standards

802.3at PD

Serial Port

Serial Ports

1 x RS-232 + 1 x RS-485

Connector

2 x 3-pin on 2 x 5-pin 3.5 mm female socket

Baud Rate

300 bps – 115200 bps

Signal Definition

RS-232: TXD, RXD, GND
RS-485: A, B

Digital Input/Output

DI/DO Ports

1 x DI + 1 x DO (wet contact)

Connector

2 x 2-pin on 2 x 5-pin 3.5 mm female socket

Isolation

3.75 K VDC

Absolute Maximum VDC

+30 VDC (DI), +30 VDC (DO)

Absolute Maximum ADC

100 mA (DO)

Signal Definition

DI+, DI-, DO+, DO-

Wi-Fi

Wi-Fi Antennas

2 (Wi-Fi 1 + Wi-Fi 2)

Connector

RP-SMA-K

Standards

802.11 a/b/g/n/ac, 2 x 2 MIMO, supporting AP and Client modes

Frequency Bands

2.412 โ€“ 2.472 GHz (2.4 GHz ISM band)
5.18 โ€“ 5.825 GHz (5 GHz ISM band)

Security

WEP, WPA, WPA2, WPA3

Encryption

AES, TKIP, WEP64

GNSS/GPS (Optional)

GNSS Antennas

1

Connector

SMA-K with 50 ohms impedance

GNSS Technology

GPS/QZSS/GLONASS/Galileo/BeiDou

Tracking sensitivity

GNSS: greater than -148 dBm

Horizontal position accuracy

GNSS: 2.5 m

Other Interfaces

Reset Button

1 x RST

LED Indicators

1 x RUN, 1 x MODEM, 1 x NET, 1 x USR, 1 x RSSI, 1 x Wi-Fi

Watchdog

Built-in

SD Card

1 x Micro SD

USB

1 x USB 2.0 (host), 5 V, 500 mA

Power Supply & Consumption

PSU Connector

3-pin 3.5 mm female socket with lock

Input Voltage

12/24 V DC, 9 ~ 36 V DC
42.5 ~ 57.0 V (PoE-PD)
Reverse polarity protection, surge protection

Power Consumption

Idle: 6 W@12 V
Max: 16 W@12 V

Recommended Power Supply

12 V DC/1.5 A power adapter

Physical Characteristics

Ingress Protection

IP30

Housing & Weight

Metal, 500g

Dimensions

48 x 100 x 125 mm

Installation Options

Desktop, Wall Mount and 35mm DIN Rail

Operating Temperature

-20 – +55 ยฐC (normal operation)
-25 – +70 ยฐC (extended operation)

Storage Temperature

-40 – +85 ยฐC

Relative Humidity

5 – 95% RH (non-condensing)

Software Features

Network Protocols

PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, HTTPs, DNS, NTP, SMTP, Telnet, ARP, VLAN, SSH2, DDNS, etc.

VPN Tunnels

IPsec, OpenVPN, GRE, WireGuard

Firewalls

DMZ, anti-DDoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control

Remote Management

RCMS, Web, CLI, SMS

Serial Port Protocols

Transparent, TCP Client/Server, UDP, Modbus RTU to TCP

SIM Management

Smart Roaming V3

Optional Apps

L2TP, PPTP, DMVPN, VRRP, QoS, SNMP, Language, RCMS, Dynamic Route, Captive Portal, Modbus Master, TR069, Edge2Cloud, etc.

Software Development Kit (SDK)

Supported Programming Languages

C, C++

Flash available for SDK

5 MB

RAM available for SDK

256 MB

Regulatory and Type Approvals

Environmental

RoHS 2.0

EMI

EN 55032 Conducted Emission Class B
EN 55032 Radiated Emission Class B

EMS

EN 61000-4-2 (ESD) Contact Level 2, Air Level 3

EN 61000-4-3 (RS) Level 2

EN 61000-4-4 (EFT) Level 2

EN 61000-4-5 (Surge) Level 3

EN 61000-4-6 (CS) Level 2

EN 61000-4-8 (PFM) Level 2

EN 61000-4-11 (Dips) Class 2

Available Models

Model

Supported Frequency Bands

Certifications

Order Code

Package Contents

R2110e-4L
Global

4G/LTE FDD: B1/2/3/4/5/7/8/12/

13/18/19/20/25/26/28

4G/LTE TDD: B38/39/40/41

3G: B1/2/4/5/6/8/19
2G: B2/3/5/8

CE, UKCA

A004400714

1 x R2110e Router

(B Code: B004400757)
1 x DIN Rail Mounting Kit

R2110e-4L
Global

4G/LTE FDD: B1/2/3/4/5/7/8/12/

13/18/19/20/25/26/28

4G/LTE TDD: B38/39/40/41

3G: B1/2/4/5/6/8/19
2G: B2/3/5/8

CE, UKCA

A004400715

1 x R2110e Router

(B Code: B004400757)

1 x DIN Rail Mounting Kit

2 x Cellular Antenna

2 x Wi-Fi Antenna
1 x Power Adapter

NOTE:
1. For more information about regional & carrier specific variants please contact us

R2110e Downloads

Please note that all product downloads are now located on the Robustel Knowledge Base (https://support.robustel.com) the buttons below will take you to the relevant sections for each product.

Product Documentation


Firmware, Software & Applications

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