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HUAWEI MC509 CDMA LGA Module
AT Command Interface Specification
Overall Description
Issue 01 (2011-08-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
17
1 Overall Description
This chapter briefly describes the contents and organization of this document and
focuses on the basic knowledge of AT command interfaces.
1.1 Content Description
This document describes the AT command interface specification that is supported by
Huawei terminal product MC509 module. This document describes certain AT
commands (implemented by terminal devices) of international standards such as
TIA/EIA/IS-707-A.3,GSM 07.07, GSM 07.05, and International Telecommunication
Union-Telecommunication Standardization Sector (ITU-T) V.250 [14] according to the
requirements of terminal devices. In addition, this document describes the proprietary
AT command interfaces that are implemented by terminal devices.
This document does not describe the interfaces that have been defined by standards
or implemented by the mobile terminal (MT) but are not required by the MC509. The
description of AT command interfaces covers only the data packets of interfaces and
the methods and processes for the terminal equipment (TE) and the MT to use
interfaces, excluding the contents that are not directly related to interfaces. In
addition, this document describes only the AT command interfaces falling within the
range of Rm interfaces between the TE and MT, excluding the AT command
interfaces falling within the range of Um interfaces between the MT and interworking
function (IWF).
1.2 Product Description
HUAWEI MC509 (the MC509) is a CDMA LGA module product, supporting two
CDMA frequency bands, that is, CDMA800 and CDMA1900.
The MC509 provides one external UART interface and supports functions such as
short message service (SMS), phone book, data service, and embedded TCP/UDP.