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《Quectel EC200x系列AT命令手册》是为使用移远通信(EC200x)系列LTE标准模块的开发者和工程师提供的一份详细技术文档。该手册旨在帮助用户理解和掌握如何通过AT命令来控制和配置EC200x系列模块。以下是手册中的主要知识点:
1. **AT命令介绍**:AT命令是一种基于文本的通信协议,用于与调制解调器或其他串行设备进行交互。在EC200x系列模块中,这些命令用于设置网络连接、数据传输、短信服务、GPS定位等功能。
2. **模块功能**:EC200x系列模块支持LTE Cat 4,能够提供最高150Mbps的下载速度和50Mbps的上传速度。它们还兼容多种网络制式,包括GSM/GPRS/EDGE、UMTS/HSPA+,并且具有多频段支持,确保全球范围内的网络连接。
3. **网络连接管理**:手册涵盖了建立和断开GPRS/EDGE、UMTS和LTE网络连接的AT命令,如`AT+CGATT`用于连接或断开GPRS服务,`AT+CFUN`用于设置模块的功能状态,以及`AT+CGDCONT`用于设置PDP上下文,这是数据连接的基础。
4. **数据传输**:包括TCP/IP和UDP/IP协议的建立、管理和关闭,如`AT+CIPSTART`启动TCP或UDP连接,`AT+CIPSEND`发送数据,`AT+CIPSTATUS`查询连接状态,以及`AT+CIPCLOSE`关闭连接。
5. **SMS服务**:提供通过AT命令发送和接收短信的服务,如`AT+CMGF`设置短信模式(文本或PDU),`AT+CMGS`发送短信,`AT+CMGR`读取短信,和`AT+CMGD`删除短信。
6. **位置信息获取**:`AT+CGPS`和`AT+CGNSINF`命令用于开启和获取GPS定位信息,帮助设备获取经纬度、高度、速度等位置数据。
7. **电源管理**:`AT+CFUN`命令可用于设置模块的工作模式,包括省电模式和完全运行模式。
8. **错误处理与诊断**:手册包含了各种错误代码和返回值的解释,帮助用户诊断和解决问题。
9. **版本更新与维护**:手册提醒用户,Quectel可能会不时发布新的修订版以改进信息或修复错误,用户应定期检查更新。
10. **技术支持与联系**:Quectel提供了多种方式获取技术支持,包括电话、电子邮件和在线平台,以确保客户能及时得到所需帮助。
《Quectel EC200x系列AT命令手册》是开发和调试EC200x系列模块不可或缺的参考资料,它详细阐述了如何利用AT命令进行模块配置和通信操作,是工程师进行产品开发、测试和维护的重要工具。

LTE Standard Module Series
EC200x Series AT Commands Manual
EC200x Series_AT_Commands_Manual 1 / 167
Our aim is to provide customers with timely and comprehensive service. For any
assistance, please contact our company headquarters:
Quectel Wireless Solutions Co., Ltd.
Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District,
Shanghai 200233, China
Tel: +86 21 5108 6236
Email: info@quectel.com
Or our local office. For more information, please visit:
http://www.quectel.com/support/sales.htm
For technical support, or to report documentation errors, please visit:
http://www.quectel.com/support/technical.htm
Or email to: support@quectel.com
GENERAL NOTES
QUECTEL OFFERS THE INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION
PROVIDED IS BASED UPON CUSTOMERS’ REQUIREMENTS. QUECTEL MAKES EVERY EFFORT
TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT
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THE INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF
QUECTEL WIRELESS SOLUTIONS CO., LTD. TRANSMITTING, REPRODUCTION, DISSEMINATION
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REGISTRATION OF A UTILITY MODEL OR DESIGN.
Copyright © Quectel Wireless Solutions Co., Ltd. 2020. All rights reserved.

LTE Standard Module Series
EC200x Series AT Commands Manual
EC200x Series_AT_Commands_Manual 2 / 167
About the Document
Revision History
Version
Date
Author
Description
1.0
2020-04-24
Jensen FANG/
Adolph WANG
Initial

LTE Standard Module Series
EC200x Series AT Commands Manual
EC200x Series_AT_Commands_Manual 3 / 167
Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 7
1 Introduction .......................................................................................................................................... 8
1.1. Scope of the Document ............................................................................................................. 8
1.2. AT Command Syntax ................................................................................................................ 8
1.3. Supported Character Sets ......................................................................................................... 9
1.4. AT Command Interface ............................................................................................................. 9
1.5. Unsolicited Result Code ............................................................................................................ 9
1.6. Turn off Procedure ................................................................................................................... 10
2 General Commands ........................................................................................................................... 11
2.1. ATI Display Product Identification Information...................................................................... 11
2.2. AT+GMI Request Manufacturer Identification ...................................................................... 12
2.3. AT+GMM Request TA Model Identification .......................................................................... 12
2.4. AT+GMR Request TA Revision Identification of Software Release ..................................... 13
2.5. AT+CGMI Request Manufacturer Identification .................................................................... 13
2.6. AT+CGMM Request Model Identification ............................................................................. 14
2.7. AT+CGMR Request TA Revision Identification of Software Release .................................. 14
2.8. AT+GSN Request International Mobile Equipment Identity (IMEI) ...................................... 15
2.9. AT+CGSN Request Product Serial Number Identification ................................................... 16
2.10. AT&F Set all Current Parameters to Manufacturer Defaults ................................................ 16
2.11. AT&V Display Current Configuration .................................................................................... 17
2.12. AT&W Store Current Parameters to User Defined Profile ................................................... 18
2.13. ATZ Set all Current Parameters to User Defined Profile ...................................................... 18
2.14. ATQ Set Result Code Presentation Mode ............................................................................ 19
2.15. ATV TA Response Format .................................................................................................... 19
2.16. ATE Set Command Echo Mode ............................................................................................ 21
2.17. A/ Repeat Previous Command Line ..................................................................................... 21
2.18. ATS3 Set Command Line Termination Character ................................................................ 22
2.19. ATS4 Set Response Formatting Character .......................................................................... 23
2.20. ATS5 Set Command Line Editing Character ........................................................................ 23
2.21. ATX Set CONNECT Result Code Format and Monitor Call Progress ................................. 24
2.22. AT+CFUN Set Phone Functionality ...................................................................................... 25
2.23. AT+CMEE Error Message Format ........................................................................................ 26
2.24. AT+CSCS Select TE Character Set ..................................................................................... 27
2.25. AT+QURCCFG Configure URC Indication Option ............................................................... 28
3 Serial Interface Control Commands ................................................................................................ 30
3.1. AT&C Set DCD Function Mode ............................................................................................ 30
3.2. AT&D Set DTR Function Mode ............................................................................................. 30
3.3. AT+IFC Set TE-TA Local Data Flow Control ........................................................................ 31

LTE Standard Module Series
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3.4. AT+IPR Set TE-TA Fixed Local Rate ................................................................................... 32
4 Status Control Commands ............................................................................................................... 34
4.1. AT+CPAS Query Mobile Activity Status ............................................................................... 34
4.2. AT+CEER Report Extended Error ........................................................................................ 35
4.3. AT+QCFG Configure Extended Settings .............................................................................. 36
4.3.1. AT+QCFG="gprsattach" Configure GPRS Attach Mode ............................................ 37
4.3.2. AT+QCFG="nwscanmode" Configure Network Search Mode ................................... 37
4.3.3. AT+QCFG="nwscanseq" Configure Network Searching Sequence .......................... 38
4.3.4. AT+QCFG="roamservice" Configure Roam Service .................................................. 39
4.3.5. AT+QCFG="servicedomain" Configure Service Domain ........................................... 40
4.3.6. AT+QCFG="band" Configure Band ............................................................................ 41
4.3.7. AT+QCFG="urc/ri/other" Specify RI Behavior When Other URCs are Presented ..... 42
4.3.8. AT+QCFG="urcdelay" Set Delay Time Of URC Indication ........................................ 43
4.3.9. AT+QCFG="urc/cache" Enable/Disable URC Cache Function .................................. 44
4.4. AT+QINDCFG Control URC Indication ................................................................................. 45
5 (U)SIM Related Commands ............................................................................................................... 48
5.1. AT+CIMI Request International Mobile Subscriber Identity (IMSI) ...................................... 48
5.2. AT+CLCK Facility Lock ......................................................................................................... 49
5.3. AT+CPIN Enter PIN .............................................................................................................. 51
5.4. AT+CPWD Change Password .............................................................................................. 53
5.5. AT+CSIM Generic (U)SIM Access ....................................................................................... 54
5.6. AT+CRSM Restricted (U)SIM Access .................................................................................. 55
5.7. AT+QCCID Show ICCID ....................................................................................................... 56
5.8. AT+QPINC Display PIN Remainder Counter ....................................................................... 57
5.9. AT+QINISTAT Query Initialization Status of (U)SIM Card ................................................... 58
5.10. AT+QSIMDET (U)SIM Card Detection ................................................................................. 58
5.11. AT+QSIMSTAT (U)SIM Card Insertion Status Report ......................................................... 59
6 Network Service Commands ............................................................................................................ 62
6.1. AT+COPS Operator Selection .............................................................................................. 62
6.2. AT+CREG Network Registration Status ............................................................................... 64
6.3. AT+CSQ Signal Quality Report ............................................................................................ 66
6.4. AT+CPOL Preferred Operator List ....................................................................................... 67
6.5. AT+COPN Read Operator Names ....................................................................................... 69
6.6. AT+CTZU Automatic Time Zone Update.............................................................................. 69
6.7. AT+CTZR Time Zone Reporting ........................................................................................... 70
6.8. AT+QLTS Obtain the Latest Time Synchronized Through Network .................................... 72
6.9. AT+QNWINFO Query Network Information ......................................................................... 73
7 Phonebook Commands ..................................................................................................................... 75
7.1. AT+CNUM Subscriber Number ............................................................................................ 75
7.2. AT+CPBF Find Phonebook Entries ...................................................................................... 76
7.3. AT+CPBR Read Phonebook Entries .................................................................................... 77
7.4. AT+CPBS Select Phonebook Memory Storage ................................................................... 78
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