R5020e eSIM Router
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R5020e eSIM Router

Industrial Dual-SIM 5G Router with 1x eSIM/eUICC, 1x 2FF SIM, 4x LAN, Serial, GNSS & PoE

The Robustel R5020e is an industrial 5G router designed for high-speed cellular connectivity in distributed IoT, enterprise, and industrial networking applications where remote SIM lifecycle management is a major operational requirement.

Built on the proven R5020 platform, the R5020e combines global 5G/4G/3G cellular support with a hybrid 1 × Mini SIM + 1 × MFF2 eSIM architecture. This gives organisations a practical way to deploy cellular routers across regions, manage connectivity profiles remotely, and reduce the need for physical SIM handling during rollout, service changes, or long-term fleet maintenance.

For network integration, the R5020e provides 4 × Gigabit Ethernet ports, configurable as 4 × LAN or 1 × WAN + 3 × LAN, plus Wi-Fi 5, RS-232, RS-485, 1 × DI, 1 × DO, optional GNSS, and 802.3at PoE-PD support on ETH0. Built on RobustOS, it supports common industrial networking functions including VPN tunnels, routing, firewall features, Modbus RTU to TCP, Smart Roaming V3, and RCMS-based remote management.

The result is a high-speed industrial 5G router for organisations that need more than cellular performance alone: they need reliable connectivity, flexible carrier profile management, and a scalable way to operate routers across regions, sites, and lifecycle stages.

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Description

System Architecture

Operating System

RobustOS

CPU

Dual-core MIPS, 880 MHz

RAM

512 MB

Flash

32 MB

Cellular

Supported Technologies

5G, 4G/LTE, 3G, 2G

Antennas

4 (ANT0 + ANT1 + ANT2 + ANT3)

Connector

SMA-K

SIM

1 x Mini SIM (2FF)

eSIM

1x eSIM/eUICC (MFF2); GSMA SGP.22 compliant; supports profile download/removal and typically up to 8 eSIM profiles

Ethernet

Ethernet Ports

Number of 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

ETH0

PoE Standards

802.3at PD

Serial Port

Serial Ports

1 x RS-232 + 1 x RS-485

Connector

2 x 5-pin 3.5 mm female socket

Baud Rate

300–115200 bps

Signal Definition

RS-232: TXD, RXD, GND
RS-485: Data+ (A), Data- (B), Ground (GND)

Digital Input/Output

DI/DO Ports

1 x DI + 1 x DO, wet contact

Connector

2 x 5-pin 3.5 mm female socket

Isolation

3.75 kVDC (opto-isolator)

Absolute Maximum VDC

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

Absolute Maximum ADC

100 mA (DO)

Signal Definition

IN, OUT, IGND, OGND

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; supports AP and client modes

Frequency Bands

2.412–2.472 GHz (2.4 GHz ISM band)
5.15–5.825 GHz (5 GHz ISM band)

Security

WPA, WPA2, WEP, WPA3

Encryption

AES, TKIP, WEP64

GNSS/GPS (Optional)

GNSS Antennas

1 (ANT3, Multiplexing cellular antenna)

Connector

SMA-K

GNSS Frequency

GPS: L1, L5
QZSS: L1, L5
Galileo: E1, E5a
GLONASS: L1OF
BDS: B1

Horizontal position accuracy

< 2 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, and 1 x Wi-Fi

Watchdog

Built-in

USB

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

Power Supply & Consumption

PSU Connector

3-pin 3.5 mm female socket with lock

Input Voltage

12/24 VDC, 9–36 VDC
42.5–57.0 V (PoE-PD@ETH0)
Reverse polarity protection, surge protection

Power Consumption

Idle: 5.5 W@12 V
Max: 12.5 W@12 V

Recommended Power Supply

24 V DC/1.5 A power adapter

Physical Characteristics

Ingress Protection

IP30

Housing & Weight

Metal, 500 g

Dimensions

48 x 100 x 125 mm

Installation Options

Desktop, Wall Mount and 35mm DIN Rail

Operating Temperature

-20 to +55 °C (normal operation)
-25 to +70 °C (extended operation)

Storage Temperature

-40 to +85 °C

Relative Humidity

5–95% RH (non-condensing)

Software Features

Network Protocols

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

Optional Apps

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

Software Development Kit (SDK)

Supported Programming Languages

C, C++, Python, Java, Node.js, etc. (for users to develop own applications)

Flash available for SDK

5 MB

RAM available for SDK

256 MB

Regulatory and Type Approvals

Environmental

RoHS 2.0, WEEE

EMI

EN 55032 Conducted Emission Class A
EN 55032 Radiated Emission Class A

EMS

EN 61000-3-2 (Harmonic Current)
EN 61000-3-3 (Voltage Flicker)
EN 61000-4-2 (ESD) Contact Level 2, Air Level 3
EN 61000-4-3 (RS) Level 2
EN 61000-4-4 (EFT) Level 3
EN 61000-4-5 (Surge) Level 3 AC Mains Power Port; Level 3 Signal Ports
EN 61000-4-6 (CS) Level 3
EN 61000-4-11 (Dips) Class 2

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