Robustel R1500 Industrial Cellular IoT Gateway


The R1500 industrial cellular IoT gateway provides high speed wireless network bandwidth for device by wireless connection and with dual-SIM backup to ensure the stable connection of your wireless network.

Providing high-speed 4G/LTE cellular connectivity for remote industrial devices. The R1500 houses a powerful LTE Cat-4 module inside a compact, rugged, flame retardant casing with 2x RS232 Serial Ports and Dual SIM Card slots for redundancy.

Key Features

  • RobustOS + SDK + App
  • IPsec/OpenVPN/GRE/L2TP/PPTP/DMVPN and various VPNs

  • Supporting double cards link backup and ICMP detection

  • Robust industrial design (9 to 36V DC, -40 to +75 °C extended operating temperature, desktop or wall mounting or DIN rail mounting)

  • Supporting SMS, Email, SNMP Trap and RobustLink
  • Event alarms
  • Supporting Modbus RTU to TCP、Modbus Master
  • Supporting TCP client/server, UDP and virtual serial ports
  • Supporting IP Pass-through
  • DHCP server
  • Supporting RobustVPN cloud platform, providing easy and safe remote access for PLC and other industrial devices
  • Supporting RobustLink M2M centralised management platform, real time monitoring device network status and counting device flow
  • Supporting Web, CLI, USB, SMS and RobustLink to upgrade firmware
  • Powerful industrial design (9~36V DC input voltage, supporting desktop placement, wall mount or rail mount)


Additional information



Data Sheet

Download Data Sheet


Cellular Interface
Number of antennas 2 (MAIN + AUX)
Connector SMA-K
SIM 2 (3 V & 1.8 V)
Ethernet Interface
Number of ports 1 x 10/100 Mbps


Serial Interface
Number of ports 2 x RS-232
Connector DB9
Signal TxD, RxD, GND, CTS, RTS, DSR, DTR
Baud rate 300bps to 115200bps
LED indicators 1 x RUN,1 x MDM,1 x USR,3 x RSSI

Network indicator (link + rate)

Built-in RTC, Watchdog, Timer
App Center (Available Apps for RobustOS)
Apps* Language, RobustLink
*Request on demand. For more Apps please visit
Software (Basic features of RobustOS)
Network protocols PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, HTTPs, DNS, ARP, NTP, SMTP, Telnet, SSH2, DDNS, etc.
VPN tunnel IPsec, OpenVPN, GRE
Management Web, CLI, SMS
Serial port Transparent, TCP Client/Server, UDP,

Modbus RTU Gateway

Power Supply and Consumption
Connector 2-pin 3.5 mm
Input voltage 9 to 36V DC
Power consumption Idle: 80 mA@12 V

Data link: 450 mA (peak) @12 V


Physical Characteristics
Ingress protection IP30
Housing & Wight Plastic, 300 g
Dimensions 118 x 97.5 x 28.5 mm
Installations Desktop, wall mounting and DIN rail mounting
Regulatory CE, Telec, RCM
Environmental RoHS 2.0, WEEE


Model R1500-4L
Type LTE Gateway
Frequency Bands EMEA: B1/B3/B5/B7/B8/B20/B28A; B38/B40/B41

AU: B1/B2/B3/B4/B5/B7/B8/B28; B40

3G EMEA: B1/B5/B8

AU: B1/B2/B5/B8

2G EMEA: B3/B8

AU: B2/B3/B5/B8

Operating Temperature -40 to +75 °C
Storage Temperature -40 to +85 °C
Relative Humidity 5 to 95% RH

*For more information about 4G frequency bands in different countries, please contact your Robustel sales representative.

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