User Guide

GM500-U1G_A

Hardware Development Guide

About This Document

A. Application Range

This document is the Product Technical Specification for the GM500-U1G_AGSM/WCDMA/LTE-FDD module. It defines the high

level product features and illustrates the interface for these features. This document is intended to cover the hardware aspects of

the product, including electrical and mechanical.

B. Reading Note

The symbols below are the reading notes you should pay attention on:

: WARNING or ATTENTION : NOTE or REMARK

C. Purpose

This document provides the hardware solutions and development fundamentals for a product with the module. By reading this

document, the user can have an overall knowledge of the module and a clear understanding of the technical parameters. With this

document, the user can successfully fulfill the application and development of wireless Internet product or equipment.

Besides the product features and technical parameters, this document also provides the product reliability tests and related

testing standards, RF performance indexes and a guide on the design of user circuits, to provide the user with a complete design

reference.

NOTE:

To ensure the module manufacturing and welding quality, do as the chapter 7 of Manufacturing Guide in

this document. The force on the squeegee should be adjusted so as to produce a clean stencil surface on a

single pass and ensure the module soldering quality.

D. Abbreviations

Table below is a list of abbreviations involved in this document, as well as the English full names.

Abbreviations Full Name

3GPP Third Generation Partnership Project

AP Another name of DTE

CHAP Challenge Handshake Authentication Protocol

CE European Conformity

CMOS Complementary Metal Oxide Semiconductor

DCE Data Communication Equipment

DL Downlink

DTE Data Terminal Equipment

EIA Electronic Industries Association

EMC Electromagnetic Compatibility

ESD Electro-Static discharge

ESR Equivalent Series Resistance

FDD Frequency Division Duplex

GPIO General-purpose I/O

LCC Leadless Chip Carrier