SIMCom presents an ultra compact and reliable wireless module. The SIM900 Quad-band GSM/GPRS module is part of SIMCom’s new Surface Mount Technology (SMT) series, allowing you to benefit from small dimensions and cost-effective solutions.

Featuring an industry-standard interface, the SIM900 delivers GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With a tiny configuration of 24mm x 24mm x 3 mm, SIM900 can fit almost all the space requirements in your M2M application, especially for slim and compact demand
of design.


General features
Quad-Band 850/ 900/ 1800/ 1900 MHz
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* 24 * 3 mm
Weight: 7g
Control via AT commands (GSM 07.07 ,07.05 and
SIMCOM enhanced AT Commands)
SIM application toolkit
Supply voltage range 3.4 ... 4.5 V
Low power consumption
Normal Operation temperature: -30 °C to +80 °C

Specifications for Fax
Group 3, class 1

Specifications for Data
GPRS class 10: max. 85.6 kbps (downlink)
PBCCH support
Coding schemes CS 1, 2, 3, 4
CSD up to 14.4 kbps
USSD
Non transparent mode
PPP-stack

Specifications for SMS via GSM/GPRS
Point to point MO and MT
SMS cell broadcast
Text and PDU mode

Drivers
MUX Driver

Specifications for Voice
Tricodec
– Half rate (HR)
– Full rate (FR)
– Enhanced Full rate (EFR)
Hands-free operation
(Echo suppression)

Interface
Interface to external SIM 3V/ 1.8V
analog audio interface
RTC backup
SPI interface
Two Serial interfaces
Antenna pad
I2C
GPIO
PWM
ADC

Compatibility
AT cellular command interface

Approvals(planning)
CE
FCC
ROHS
PTCRB
GCF
AT&T
ICASA

We are a highly experienced telecommunications network support provider, specialising in the supply and ongoing support of legacy equipment with warehouses located in the China,HongKong and UK stocking over 100,000 items.

Our management team have over 20 years combined experience within the carrier telecoms industry that has helped to develop and refine each of our core services: spare part supply, repair and refurbishment, asset management and network support.

By partnering with carriers and end-users to acquire, redeploy, resell and recycle their telecommunication assets, we offer services that not only extend the life of existing telecommunication networks, but generate maximum revenue, reduce expenses and help organisations meet their environmental goals.

Our clients range from large-scale multinational organisations and fixed and mobile operators, to leading equipment manufacturers and various other channel partners that are located all around the world.