Fibocom FB520 Hardware Guide

Introduction to the FB520 Module

The Fibocom FB520 is a highly integrated IoT wireless communication module featuring an M.2 form factor interface. It supports multiple modes, including LTE (LTE FDD Cat.M1), GSM (GSM, GPRS, EGPRS), and GNSS (GPS, GLONASS, Galileo, BEIDOU). This guide provides comprehensive details on its hardware specifications, application interfaces, radio frequency characteristics, and structural dimensions.

Key Features and Specifications

• Interface: M.2 Key-B
• Supported Networks: LTE Cat.M1, GSM, GPRS, EGPRS, GNSS
• Operating Bands: Extensive support for various GSM and FDD-LTE bands.
• Power Supply: DC 3.135V~3.63V, Typical 3.3V
• Operating Temperature: -30°C to +75°C (Normal), -40°C to +85°C (Extended)
• Dimensions: 22.0 mm × 42.0 mm × 2.3 mm

Application Interfaces

The FB520 module utilizes standard interfaces for seamless integration:

• M.2 Interface: A 75-pin interface for connectivity.
• USB Interface: Supports USB 2.0 for factory testing, R&D debug, and diagnostics.
• I2C Interface: Enables communication with the host's embedded controller for management and control.
• Control Signals: Includes signals for module start-up and reboot.
• Status Indicators: LED1# for system status and WOWWAN# for waking the host.

Radio Frequency and Antenna Design

The module supports dual antennas for Main and GNSS signals. Detailed specifications for operating bands, output power, and antenna design requirements are provided, ensuring optimal RF performance.

Regulatory Compliance

The document includes FCC and ISED Conformance information, outlining compliance statements, radiation exposure limits, and important notices for OEM integrators regarding installation and end-product labeling.