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SIM908 Module is a high-performance quad-band GSM / GPRS / GPS module of industrial grade, which can be controlled via AT command set.

SIM908 GSM/GPRS/GPS Module

Model: IM140402002
SIM908 Module is a high-performance quad-band GSM / GPRS / GPS module of industrial grade, which can be controlled via AT command set. It can be used to make or receive calls, to send and to receive SMS messages. Moreover, it can be used to send and to receive data after connected to the network. Besides, it can realize global positioning by locating its geographical position with GPS.
 

Product Description

Details

Overview

This module is discontinued, Please click here to get the new version. 

SIM908 Module is a high-performance quad-band GSM / GPRS / GPS module of industrial grade, which can be controlled via AT command set. It can be used to make or receive calls, to send and to receive SMS messages. Moreover, it can be used to send and to receive data after connected to the network. Besides, it can realize global positioning by locating its geographical position with GPS.

Features

  • Quad-band 850/900/1800/1900MHz
  • GPRS multi-slot class 10 standard
  • GPRS mobile station class B standard
  • Meet the GSM phase 2/2 Standard
    • Class 4 (2W@850/900 MHz)
    • Class 1 (1W@1800/1900MHz)
  • Control via commands (GSM 07.07, 07.05 and SIMCom enhanced AT command set)
  • SIM Application Toolkit
  • 3.5 inch standard sonic sockets for MIC and phone
  • Operation temperature: -40℃ ~ +80℃

Specifications

PCB size 80mm X 70mm X 1.6mm
Operating level 5V/3.3v (optional)
Indicator  PWR, Status, NET
Interface 3.5 inch MIC and earphone interface
Communication protocol UART
Antenna type active

Electrical characteristics

Specification Min  Type Max Unit
Power Voltage(Vsupply)  4.5 5.5  VDC
Current Consumption(pulse) 1800 2000  mA
Current Consumption(Continues)      500  mA
Baud rate   9600   bps

Hardware

pinMap

Interface Pin Description
+ 1 5V
2 GND
DR 3 Debug UART data input
DT  4 Debug UART data output
Rx 5 UART data in
Tx 6 UART data output
P 7 Power switch pin of GSM module
NC 8 NC PIN

Installation

Boot

The GSM module can be boot up by keeping pressing the POWER button or pulling up P pin level for at least 1s.

Indicator

1. PWR
Power indicator of GSM module: when there is normal power supply, PWR keeps ON.
2. Status
Power status indicator of GSM module: it keeps ON after the module boots up.
3. NET
Network indicator of GSM module:

Status Description
Off The module is not running
64ms On/800ms Off  The module does not find the network
64ms On/3000ms Off  The module find the network
64ms On/300ms Off GPRS communication

Button

1. PERKEY
Boot key: it can be boot up by keeping pressing the key for at least 1s, and it can be turned off by keeping pressing the key for at least 600ms.

GPS Power

1. GPS_VIN
GPS power input pin. If it is an active antenna, the jumper needs to be connected to 5V or 2.8V according to configuration requirements of the antenna.

 Packing List

SIM908 GSM/GPRS/GPS Module x1

IPX-SMA coaxial cable -5cm x2

GSM/GPS combination antenna x1

Additional Information

Additional Information

Discontinued Yes
Link Wiki No
EWeLink Support N/A
Module Type No
Weight 55 g
Model IM140402002
Board Size 80mm X 70mm X 1.6mm
Version V1.0
Operation Level
  • Digital 3.3V
  • Digital 5V

Reviews

Customer Reviews

Great Module!! Review by ECOFOR
This module was great for our projects, easy to use and very powerful!! (Posted on 12/3/2014)

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