Huawei EM820W manual Circuit Block Diagram, Sms

Models: EM820W

1 49
Download 49 pages 23.34 Kb
Page 10
Image 10

HUAWEI EM820W HSPA+ PC Embedded Module

Hardware Guide

 

Overall Description

 

 

 

 

 

 

 

Feature

 

Description

 

 

 

 

 

 

 

 

 

W_Disable#: for turning on/off the RF signal.

 

 

 

 

 

 

 

 

 

LED_WWAN#: Active-low LED signal indicating the state of the

 

 

 

 

card

 

 

 

 

 

 

 

 

 

Power Interface

 

 

 

 

 

 

 

 

 

New message alert, receiving and sending text messages

 

 

 

 

 

 

 

SMS

 

Management of text messages: read messages, delete

 

 

 

messages, storage status, and message list

 

 

 

 

 

 

 

 

 

 

 

 

 

Support for the protocol data unit (PDU) mode

 

 

 

 

 

 

 

 

 

GSM CS: 9.6/14.4 kbps

 

 

 

 

 

 

 

 

 

GPRS/EDGE: Multi-slot Class 12, Class B

 

 

 

 

 

 

 

Data services

 

WCDMA CS: UL 64kbps/DL 64kbps

 

 

 

 

 

 

 

 

WCDMA/HSDPA PS: UL384kbps/DL3.6Mbps, HSDPA Category

 

 

 

6, 8, 9, 10, 12, 14

 

 

 

 

 

 

 

 

 

HSPA+ Rel7

 

 

 

 

 

 

 

Physical

 

Dimensions (L × W × H): 50.95 mm × 30 mm × 4.5 mm

 

 

features

 

Weight: < 15 g

 

 

 

 

 

 

 

Certification

 

Restriction of the use of certain Hazardous Substances (RoHS),

 

 

 

European Conformity (CE), Federal Communications

 

 

information

 

 

 

 

Commission (FCC)

 

 

 

 

 

 

 

 

 

2.3 Circuit Block Diagram

Figure 2-1 shows the circuit block diagram of the EM820W module. The application block diagram and major functional units of the EM820W module contain the following parts:

zMobile data modem

zPower management

zMulti-chip package (MCP) memory

zRadio frequency (RF) transceiver

zRF front-end modules

zReceive filter

Issue 01 (2010-12-31)

Huawei Proprietary and Confidential

3

Copyright © Huawei Technologies Co., Ltd.

 

 

Page 10
Image 10
Huawei EM820W manual Circuit Block Diagram, Sms

EM820W specifications

The Huawei EM820W is a cutting-edge mobile broadband device that exemplifies Huawei's commitment to innovation and excellence in the telecommunications sector. Designed for seamless connectivity, the EM820W caters primarily to users who demand high-speed data access while on the move.

One of the standout features of the Huawei EM820W is its support for high-speed 4G LTE connectivity. With download speeds that can reach up to 150 Mbps and upload speeds of up to 50 Mbps, users can enjoy smooth streaming, rapid downloads, and responsive online gaming experiences. This capability makes the device an ideal choice for both individual users and business professionals who rely on robust internet access.

The EM820W is equipped with a compact and lightweight design, making it highly portable. This device can be easily carried in a pocket or bag, allowing users to stay connected wherever they go. Its plug-and-play feature simplifies the setup process, ensuring that even those who are not tech-savvy can easily get online.

Another notable aspect of the Huawei EM820W is its compatibility with a wide range of operating systems, including Windows, macOS, and various distributions of Linux. This versatility means that users can connect the device to their preferred platforms without facing compatibility issues, enhancing the overall user experience.

The device also incorporates advanced security features to safeguard user data, including built-in encryption protocols. This is particularly important for business users who require secure connections for sensitive transactions and communications.

In addition to its connectivity capabilities, the EM820W showcases energy-efficient technologies that optimize battery performance. The device is designed to consume minimal power, allowing users to prolong usage times without frequently recharging.

The Huawei EM820W comes with a user-friendly interface, enabling users to easily manage their connections and monitor data usage. This feature is valuable for those who need to track their internet consumption to avoid exceeding data limits imposed by service providers.

With its blend of speed, portability, and user-oriented features, the Huawei EM820W stands out as a reliable solution for those seeking robust mobile broadband capabilities. Whether for personal use or professional needs, this device ensures that users remain connected in an increasingly digital world.