Plug-n-Play LTE Cat-4 IoT Smart Gateway with Embedded Processing

SGL81-W USB Plug-n-Play LTE Cat-4 IoT
ART.NR Cinterion® SGL81-W USB

LTE Cinterion® SGL81, which can be used as an IoT Gateway, combines field-proven technology with Embedded Processing for a wide range of applications that demand cost-effective LTE Cat-4 speeds.

A 20-pin GPIO connector and multiple interfacing options enable applications requiring sensor interfacing, actuator control, data processing or protocol translation at the edge.

An easy-to-use migration option for gateway applications using Cinterion® PLS62T and ELS61T, the future-proof LTE Smart Gateway features out-of-the-box global LTE Cat-4 connectivity with seamless 3G/2G fallback for a flexible, cost-effective platform to connect industrial assets using field-proven LTE technology. With Embedded Processing, business logic can be put inside the SGL81 to build a Gateway application. It can also be used as a simple modem providing a cellular connection to the Internet with the intelligence residing in the application rather than in SGL81. The smart gateway adds support for USB, embedded processing via the Cinterion SDK ThreadX and future GNSS support.

Fastest way to connect assets

The 20-pin GPIO connector (GPIOs, SPI, I2C, PWM) and higher bandwidth enables a wider range of applications including video surveillance, robotics, Industry 4.0, remote maintenance & control, smart cities, vending machines, and healthcare applications. The plug-n-play, highly efficient SGL81 offers highly efficient LTE connectivity with data speeds up to 300 kbps and is ideal for low-power applications in legacy or new equipment. Designed to operate in extended temperatures of -30°- +80°C for industrial applications, the next-generation gateway features integrated GNSS* (GPS/GLONASS/ Beidou/Galileo), a USB2.0 interface, Driver for Windows® 7/8/10 and Linux; as well as trusted identity for AWS and Azure, watchdog, power-over-USB and power-over-Ethernet, and an optional eSIM. SGL81 reduces time to market with simplified integration, manufacturing and logistics for a wide range of applications. Connection Manager Software helps ensure easy set up in the field and over-the-air firmware updates ensure longevity. SGL81 is available in three variants including USB/RS-232, RS485 and LAN options.


  • 3GPP Rel.10 Compliant Protocol Stack
    • FDD-LTE: bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 66
    • TD-LTE: bands 38, 40, 41
    • UMTS (WCDMA/FDD): bands 1, 3, 2, 4, 5, 6, 8, 19
  • Quad Band GSM: 850, 900, 1800, 1900 MHz
  • Control via standardized commands (Hayes, TS 27.007 and 27.005) and Thales AT commands
  • Embedded IPv4 and IPv6 TCP/IP stack access via AT command and transparent TCP/UDP services
  • Secure Connection with TLS/DTLS
  • Internet Services: TCP server/client, UDP client, DNS, Ping, HTTP client, SMTP, FTP client, MQTT client
  • SIM Application Toolkit with BIP
  • Cinterion® IoT SDK (ThreadX) Embedded processing option with API. Memory space available for embedded applications is 512KB for application code, 1024KB for File System and 12M for RAM.
  • Supply voltage range: 8 - 57 V
  • Dimension: 113.8 x 75.3 x 25.3 mm (excluding connectors)
  • Operating temperature: -30° - +80°C
  • Weight: 130g (aprox.)


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