SLM3XX

Wireless Communication Module

The SLM3XX is a wireless communication module from MeiG Smart Technology. View the full SLM3XX datasheet below including key specifications.

Manufacturer

MeiG Smart Technology

Key Specifications

Parameter	Value
MQTT Topic Max Length	256 bytes
Communication Interface	AT Command Interface
MQTT Keepalive Interval	30 to 1800 seconds
MQTT Message Max Length	2048 bytes
MQTT QoS Levels Supported	0, 1, 2

Overview

Part: SLM3XX Series — MeiG Smart Technology Co., Ltd

Type: AT Commands Manual for Cellular Modules

Description: A comprehensive manual detailing common AT commands for the MeiG Smart Technology SLM3XX series cellular modules, covering general module control, SIM card management, network configuration, and data transfer functionalities.

Features:

General AT commands for module configuration and status reporting
SIM card management commands, including hot-plug and switching functions
Network-related commands for band setting, cell locking, and signal quality
Data transfer commands for PDP context definition and control surface data
Audio control commands (e.g., UE volume, DTMF tone, MIC gain)
Power management commands (e.g., battery charging, low clock mode)
Trace control and extended error reporting
USB remote wakeup functionality

Features

Configure and query EDRX parameters.

Command Type	Command	Possible Response
Test Command	AT+CFGEDRX=?	+CFGEDRX: enable=[0-1], edrxPtw=[0-15], edrxValue=[0-15] OK
Read Command	AT+CFGEDRX?	+CFGEDRX: [,[,<edrx_val>]] OK
Write Command	AT+CFGEDRX=[[,[ ,<edrx_val>]]]	OK

integer, Value range [0-1], configured to support EDRX functionality.
0 eDRX is not supported, and and <edrx_val> are invalid when the value is taken;
1 Support eDRX;

////The following examples show the typical application for this command. AT+CFGEDRX=? +CFGEDRX: enable=[0-1], edrxPtw=[0-15],edrxValue=[0-15] OK AT+CFGEDRX? +CFGEDRX: 0, ptw=0, edrxVal=0 OK AT+CFGEDRX=0,1,1 OK

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
SLM320	MeiG Smart Technology	—
SLM336U	MeiG Smart Technology	LGA 126pin

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

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