SIM900A GSM Modem Breakout TTL Board

BANGALORE, India - April 17, 2013 - PRLog -- SIM900A TTL Modem is built with Dual Band GSM/GPRS based SIM900A modem from SIMCOM. It works on frequencies  900/ 1800 MHz. SIM900A can search these two bands automatically. The frequency bands can also be set by AT Commands. The baud rate is configurable from 1200-115200 through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS.

SIM900A is an ultra compact and reliable wireless module. This is a complete GSM/GPRS module in a SMT type and designed with a very powerful single-chip processor integrating AMR926EJ-S core, allowing you to benefit from small dimensions and cost-effective solutions.

For for information on this product kindly visit www.coineltech.com

SIM900A features

GPRS multi-slot class 10/8
GPRS mobile station class B
Compliant to GSM phase 2/2+

 Class 4 (2 W @850/ 900 MHz)
 Class 1 (1 W @ 1800/1900MHz)

Dimensions: 24 x 24 x 3mm (Modem Only)
Control via AT commands (GSM 07.07 ,07.05 and  
SIMCOM enhanced AT Commands)
Low power consumption: 1.5mA(sleep mode)
Operation temperature: -40°C to +80 °C

Specifications for Data

GPRS class 10:    

max. 85.6 kbps (downlink)
max 42.8 kbps (uplink)

PBCCH (Support packet Switched Broadcast Control Channel) support
Coding schemes CS 1, 2, 3, 4

Specifications for SMS via GSM/GPRS

Point to point MO and MT
SMS cell broadcast
Text and PDU mode

Software features

0710 MUX protocol
embedded TCP/UDP protocol
FTP/HTTP( available at late July ,2010)
FOTA ( available at July ,2010)
MMS (available at July ,2010)
Embedded AT (available at Q3,2010)

Compatibility

AT cellular command interface

SIM900A TTL BOARD Features

INPUT VOLTAGE: 5V
Current: 1.5amps min
On Board Power LED
On Board Network LED
PINOUT for TTL Serial Control (TX and RX)
PINOUT for DTR pin for wakeup from sleep.
Modem Reset PIN OUT
Default Baud Rate: 9600. Databits: 8, Parity: None, Stop Bit- 1
Board Specifications

   Board Dimensions: 45 x 35 mm
   Meterial: FR4
   Board Thickness: 1.6mm
   Finish: ENIG

TTL PINOUT Details

The image below provides details of PINOUT available for the Breakout Board.

Note: The PINOUTS are TTL compatible.