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Features:
The SIEMENS MC52I Module is AT Command - controlled gsm gprs modem, via Serial Port (RS232/TTL communication).
To Send/Read Text/PDU Message, Dial/Answer Phone Call .
Frequency bands: Dual Band EGSM 900 and GSM 1800 (GSM Phase 2+)
Power supply: DC 12V1A (Can also be wide voltage input 7-25V!)
Support GPRS, with TCP IP and computer data transmission via TCP or UDP

Support Arduino!

Download list:
Schematic of main board Protel Schematic_MC52I.pdf
Schematic of Voice/Audio adapter Protel Schematic_AUDIO.pdf
SIEMENS MC52I of hardware mc52i_hd.rar
AT Command Reference Manual mc52i_at.rar

Package list:
GSM GPRS URAT/232 Development Board x1
SIEMENS MC52I module x1
GSM Special Antenna x1
Voice/Audio adapter x1

Power adapter DC 12V1A x1

Serial line x1

E-mail sent 500M data x1

with Highest Protection!
1) High Quality Antistatic Bag
2) Thick Bubble Bags
3) Waterproof Address Label (Print Version) to avoid mistakes made by handwriting. (More accurate delivery)
4) All products are well packed after We are completely tested.

Special Offer!

Click me to see the detail of Version3.

Our board can also be loaded into the metal box[need add $5], more beautiful and practical,

following Pictures