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USB or RS232 GSM/GPRS modem

Product description:
General features
Industrial design
Aluminum casing
Wireless access to internet
Based on Simcom module SIM900
850/900/1800/1900MHZ
TCP/IP stack
3V SIM card slot
Standard USB interface
Jack for voice
LED for power and GSM signal
SIM Application Toolkit
Send and receive data, SMS
Support AT command to make remote control (GSM07.07 and 07.05)
GPRS Class 10
Antenna with high sensitivity
Always on-line
Conform with ETSI GSM Phase2+ standard
Output Power
Class 4(2W @850/ 900MHz)
Class 1(1W @ 1800/1900MHz)
Input voltage 5V DC
Input current 1A-2A
Working temperature  -20 to +60 degrees
Storage temperature:-25 to +70 degrees
Size 85*54*25mm
Weight 110g
Accessories: USB cable, antenna, earphone, 2 mounting plates, CD
White box: 20x16x3.5cm
Master carton: 42x22x51cm/30 pcs/13kg

Specification for data
GPRS Class 10 max.85.6kbps(downlink
PBCCH support
Coding schemes CS 1,2,3,4
CSD up to 14.4kbps
USSD
PPP stack
Non-transparent mode
Transparent mode

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

Specifications for voice
Tricode: HR/FR/EFR
Hands-free operation
Echo suppression
AMR: HR/FR

Specifications for fax
Group 3, class 1