Smart LTE Cat 4 Gateway

The next-generation LTE SGL81 IoT Gateway combines field-proven technology with Embedded Processing for a wide range of applications demanding cost-effective LTE Cat-4 speeds. A 20-pin GPIO connector and multiple interfacing options enable applications that require sensor interfacing, actuator control, data processing or protocol translation at the edge.

Telit Cinterion SGL81 IoT Gateway

Product Description

An easy-to-use migration option for gateway applications using PLS62T and ELS61T, the future-proof LTE Smart Gateway provides 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.

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

Form Factor Family

The next-generation Gateway SGL81 reduces time to market with simplified integration, manufacturing and logistics for a wide range of applications. The 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 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.
  • Local approvals and major MNO certifications
  • WEEE, EuP, RoHS and REACH compliant
  • Dimension: 113.8 x 75.3 x 25.3 mm (excluding connectors)
  • Weight: 130g (aprox.)
  • Supply voltage range: 8 – 57 V
  • Operating temperature: -30° – +75°C
  • USB, MUX driver for Microsoft® Windows 10™ and Microsoft® Windows 11™
  • RIL Driver for Android
  • Ofono for Linux
User Guides, Documentation, Application Notes and Firmware

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