R5020 LITE – Compact 5G Router

This is the new, lower cost, compact 5G router from Robustel offering high speed 5G connectivity in a more compact housing with just 2 x Ethernet Ports and WiFi.  For applications that do not need a larger number of built-in Ethernet Ports the new compact R5020 LITE 5G router from Robustel provides an economical solution for users that need a reliable, secure, high speed

Robustel R5020 Lite 5G Industrial Cellular Router

The Robustel R5020 Lite is a 5G capable router supporting global 5G, 4G and 3G bands. The R5020 Lite leverages Robustel’s tried and tested high performance CPU platform, along with RobustOS 5 – an Operating System developed in-house by Robustel that has passed extensive 3rd party penetration testing.

Robustel R5020 Key Features:

  • Low cost industrial 5G Router
  • Global 5G/4G/3G cellular connections
  • Cutting-edge 5G 3GPP Release 16 cellular interface
  • Supports Ethernet, Wi-Fi and 5G/4G internet with auto-failover
  • 1 x RS232/RS485 (software configurable) ports for connection to industrial/legacy devices
  • Fully programmable Operating System with well documented SDK
  • Multiple VPN options are available, including DMVPN, IPsec, L2TP + more…
  • Free cloud management platform – RCMS
  • Robust metal enclosure with small footprint – DIN-rail + wall mount options

Broadband Failover – The R5020 Lite can be configured to use Ethernet or Wi-Fi as primary internet and failover to 5G/4G in the event of an outage. This can help provide resilience to shops and small offices at a reasonable cost and provide sufficient bandwidth for many users. IPsec, DMVPN, GRE+ many more protocols can be used for connections into core networks.

Primary Broadband – Cellular network operators can now provide unlimited 5G tariffs at very reasonable prices. For many, a chance to cut the cables and use a wireless internet connection can be technically or commercially favourable.

SD-WAN – whilst many appliances have cellular options built-in, the R5020 Lite can offer a very low-cost way to add a 5G backup route & by virtue of being able to located externally to the appliance, is more likely to get a good 5G signal!

RCMS is Robustel’s free router monitoring service that is fully compatible with the R5020 Lite. It is an extremely polished piece of software hosted on MS Azure & available as a privately hosted instance.

Robustel R5020 Lite – Technical Specifications

Cellular Interface

  • Number of antennas 4 (ANT0 + ANT1 + ANT2 + ANT3)
  • Connector SMA-KSIM 2 x Mini
  • SIM (2FF)

Ethernet Interface

  • Number of ports 2 x 10/100/1000 Mbps,
    2 LAN by default, can be configured as
    1 WAN + 1 LAN
  • Isolation protection 1 KV

WiFi Interface

  • Number of antennas 2 (WiFi1 + WiFi2)
  • Connector RP-SMA-K
  • Standards 802.11b/g/n/ac 2*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
  • Data speed 5G: Up to 867Mbps2.4G: Up to 300Mbps

Serial Interface

  • Number of ports 1 x RS232 or 1 x RS485 (Software configurable)
  • Connector 1 x 3-pin 3.5 mm female socket
  • ESD protection ±8 KV air discharge, ±6 KV contact discharge
  • Baud rate 300 bps ~ 115200 bps
  • Signal definition RS232: TXD, RXD, GND
    RS485: Data+ (A), Data- (B), Ground (GND)


  • Reset button 1 x RST
  • LED indicators 1 x RUN, 1 x Modem, 1 x USR, 1 x RSSI, 1 x Wi-Fi 2.4G,1 x Wi-Fi 5G
  • Built-in Watchdog

Software (Basic features of RobustOS)

  • Network protocols PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, HTTPs, DNS, ARP, NTP, SMTP, Telnet, VLAN,SSH2, DDNS, etc.
  • VPN tunnel IPsec, OpenVPN, GRE
  • Firewall DMZ, anti-DoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control
  • Management Web, CLI, SMS
  • Serial port Transparent, TCP Client/Server, UDP, Modbus RTU to TCP
  • Others Data Guard, etc.


  • Supported programming languages C, C++
  • Flash available for SDK 5MB
  • RAM available for SDK 128MB

App Center (Available Apps for RobustOS)

  • Apps* L2TP, PPTP, DMVPN, VRRP, QoS, SNMP, Language, RCMS, Dynamic Route,Data Guard, Captive Portal, WLAN Multi AP

*Request on demand.

Power Supply and Consumption

  • Connector 2-pin 3.5 mm female socket with lock
  • Input voltage 12 ~ 36 VDC
  • Power consumption Idle: 370 mA@12 VData link: 1.7 A (peak) @12 V

Physical Characteristics

  • Ingress protection IP30
  • Housing & Weight Aluminum, 475 g
  • Dimension 136 x 115 x 32 mm
  • Installations DIN rail mounting, desktop or wall mounting
  • Operating Temperature -20 ~ +55°C (Normal temperature)
    -25 ~ +70°C (Extended temperature)
  • Storage Temperature -40 to +85 °C
  • Relative Humidity 5 to 95% RH


  • Environmental RoHS2.0
  • *in progress


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