Note: Product discontinued by manufacturer, page for reference only.

SIM300 Module Features: 

• Designed for global market, sim 300 is a tri-band gsm / gprs engine works on frequencies egsm 900.
• Works on frequencies egsm 900 mhz, dcs 1800 mhz and pcs 1900 mhz.
• SIM300 features gprs multi-slot class 10 / class 8 (optional) and supports the gprs coding schemes.
• cs-1, cs-2, cs-3 and cs-4 with a tiny configuration of 40 mm x 33 mm x 2. 85 mm
• SIM300 can fit almost all the space requirements in your applications, such as smart phone, pda phone and other mobile devices.

GSM Modem Features :

• This GSM modem is a highly flexible plug and play modem based on tri-band SIM300 GSM module.
• Industrial quality PCB with adequate grounding for better performance and noise immunity.
• RS232 Interface with Hardware Flow Control Support.(5 wire Serial interface with TX, RX, RTS, CTS & GND signals).
• Power ON/OFF control pin for auto-reset by Micro-controller. It will be useful for Auto-Reset functionality in Self Monitoring Applications running 24x7x365.
• Antenna connector has separate ground plane for additional safety. It will isolate modem circuit ground plan in case antenna connector is exposed to inappropriate voltages. Modem Circuit ground plan and antenna ground plan can be connected simply by solder jumper, if required.
• Supports features like voice, data / fax, SMS, GPRS and integrated TCP / IP stack.
• Control via AT commands (GSM 07.07, 07.05 and enhanced AT commands).
• AC/DC 9-12 V /1.5 A Power Input.
• 4 Pin 0.1" connector for Speaker & Mic connectivity.
• RTC Battery holder(Optional).
• Average Current consumption in normal operation 250 mA, can rise up to 500-700 mA during Voice and GPRS connections. Current pulse can be high as 1.5-2 A.

Interfaces :

• RS-232 Interface with Hardware Flow Control support.(5 signals - TX, RX, RTS, CTS & GND through D-type 9 connector).
• Serial port baud rate adjustable 1200 to115200 BPS.
• 4 pin 0.1" connector for Speaker & Mic connection. 
• 8-pin flip type reliable SIM card holder.
• DC socket for Power Adapter.
• Rubber Duck GSM antenna or Magnetic Mount Antenna with approx. 3 mtr. cable.
• LED status for Power, Signal and Incoming Call.