SIM900A GSM Module (Free 4 Jumper Wires)

Specification

• Standard AT commands
• Input Voltage: 5V to 12V DC
• SIM Card Holder
• Single supply voltage: 3.4V – 4.5V
• Power saving mode: Typical power consumption in SLEEP mode is 1.5mA
• Frequency bands: SIM900A Dual-band: EGSM900, DCS1800. The SIM900A can search the two frequency bands automatically. The frequency bands also can be set by AT command.
• GSM class: Small MS
• GPRS connectivity: GPRS multi-slot class 10 (default) , GPRS multi-slot class 8 (option)
• Transmitting power: Class 4 (2W) at EGSM 900, Class 1 (1W) at DCS 1800
• Operating Temperature:- 30ºC to +80ºC
• Storage Temperature:- 5ºC to +90ºC

Description

The SIM900 is a GSM/GPRS module that provides wireless communication capabilities. It supports the GSM/GPRS 850/900/1800/1900 MHz frequency bands, making it suitable for use in various regions worldwide. Here are the specifications of the SIM900 GSM/GPRS Module:

1. GSM/GPRS Support:
– Quad-Band GSM: It supports four frequency bands – GSM 850 MHz, EGSM 900 MHz, DCS 1800 MHz, and PCS 1900 MHz.
– GPRS Class 10: It supports GPRS (General Packet Radio Service) with a maximum data rate of 85.6 kbps for download and 42.8 kbps for upload.

2. Interface:
– Serial Interface: The module uses a serial interface (UART) for communication with external devices such as microcontrollers or computers. It supports baud rates up to 115,200 bps.

3. SIM Card Interface:
– The module has a built-in SIM card holder for inserting a standard-sized SIM card.

4. Antenna Connector:
– SMA Antenna Connector: The module uses an SMA (SubMiniature version A) connector for connecting an external antenna. This allows for improved signal reception and transmission.

5. Power Supply:
– Voltage Range: The module operates within a voltage range of 3.4V to 4.5V.
– Power Consumption: The average power consumption during idle mode is approximately 10mA.

6. Control:
– AT Commands: The module is controlled using AT commands sent via the serial interface. These commands allow you to perform various operations such as making calls, sending/receiving SMS messages, establishing GPRS connections, and more.

7. Additional Features:
– TCP/IP Stack: The module has a built-in TCP/IP stack, enabling Internet connectivity and the ability to send/receive data over GPRS.
– Built-in SIM Application Toolkit (SAT): The module supports the SIM Application Toolkit, allowing you to execute predefined commands stored on the SIM card.

Please note that these specifications are general and may vary depending on the specific version or variant of the SIM900 module. It’s always recommended to refer to the manufacturer’s datasheet or documentation for detailed and up-to-date information.