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Spectrum SM5100B four band GSM/GPRS DTU Modem Module

Linksprite(Wuhan)Electronic Technology Co.,Ltd.
Linksprite(Wuhan)Electronic Technology Co.,Ltd.
Country/Region: China

Spectrum SM5100B four band GSM/GPRS DTU Modem Module

Brand Name : linksprite
Model Number : LS-GPRS-DTU_E20
Place of Origin : china
MOQ : 1 piece
Price : USD+49.00+piece
Payment Terms : L/C, T/T
Supply Ability : 1000+piece+3 day
Delivery Time : 7-14 work day
Packaging Details : 7.0/5.0/2.0 cm
type : Cellular Modem
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DTU is much powerful than AT mode version, and can be downgraded to AT mode version. here is a step-by-step guide:
SM5100B shield tutorial:

This documents show it's so easy to use this GPRS DTU.

What's the difference between a DTU modem and the regular SM5100B module?

DTU modem is a super set of regular SM5100B module. DTU can allow transparent communication while regular SM5100B module uses AT commands.

USA providers are all on 850/1900Mhz and pratically all the rest of the world uses 900/1800Mhz.

LinkSprite SM5100B GPRS-DTU supports both original SM5100B's AT command and DTU mode.

In DTU mode, it has the following feature:

1. Integrated TCP/IP Stack

LinkSprite GPRS-DTU has integrated TCP/IP Stack. Users can treat the LinkSprite GPRS-DTU as a transparent serial port without the knowledge of TCP/IP stack.

2. Bi-directional Serial port to TCP/IP transparent data communication

LinkSprite GPRS-DTU can do transparent bi-directional serial port data to TCP/IP packet bridging. In another words, LinkSprite GPRS-DTU will pack the raw data from serial port to TCP/IP packets without the need to change the original data, and the receiving host side software can restore the TCP/IP packets to the raw serial port data. So LinkSprite GPRS-DTU can be used with the devices that using serial port with any modification to the devices.

3. Support heart beat to keep always online

The mobile network will disconnect GPRS-DTU from the host when there extended time of quiet. Heart beat mode is to keep GPRS-DTU always connected to host by periodically sending small packets.

4. Support configurations of parameters and saved to flash

LinkSprite provides a GUI utility to configure the parameters such as IP, port of host, baud rate of serial port, etc. User can also opt to use the configuration protocol to send commands to GPRS-DTU to configure the GPRS-DTU. Once configured, the parameters are saved to flash, and no need for further configuration when power cycled.


LinkSprite GPRS DTU Configuration Protocol

Spectrum SM5100B GSM/GPRS module: a miniature, single-side board, quad-band GSM 850/EGSM 900/DCS 1800/PCS 1900 module, ready for integration in various kinds of Fix wireless phones and other wireless devices.

Temperature range

Normal range: -10°C to +55°C (full compliant)

Storage: -40°C to +85°C

Weight< 9g
Physical dimensions35.0X39.0X2.9 mm (typical)
Connection60 pins
Power supplyVBAT: 3.3V to 4.2V range, 3.6V typical.
Power consumption

Off mode: <100uA

Sleep mode: <2.0mA

Idle mode: <7.0mA (average)

Communication mode: 350 mA (average,GSM)

Communication mode: 2000mA (Typical peak during TX slot,GSM)

Li-ion Battery charging management and interface (OPTION)Li-ion Battery charging management is included. The charger interface is provided on 60-pin connector. (only for 3.7V Li-ion Battery)
Frequency bandsEGSM900 +GSM850+ DCS1800+PCS1900
Transmit power

Class 4 (2W) for EGSM900/GSM850

Class 1 (1W) for DCS1800/PCS1900

Supported SIM card3V/1.8V SIM card. (auto recognise)
Keyboard interface4x6 keyboard interface is provided
UART0 interface with flow control

Up to 460 kbps

Full hardware flow control signals (+3.0V) are provided on 60 pins.

UART1 interface without flow control

2-Wire UART interface

Up to 460 kbps

LCD interfaceSupport standard SPI interface


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Spectrum SM5100B four band GSM/GPRS DTU Modem Module Images

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