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GM250 Dual-band GSM Module

<>Dual-band EGSM900/GSM1800
Output power:
EGSM900: Class 4 (2W)
GSM1800: Class 1 (1W)
Power consumption (average):
Stand-by: 150uA
Idle: 3.2mA
In call (EGSM900, PCL5): 300mA

◆GM250 Reference Manual
◆GM250_DataSheet

◆ Product Features _ Dual-band EGSM900/GSM1800 _ Output power: EGSM900: Class 4 (2W) GSM1800: Class 1 (1W) _ Power consumption (average): Stand-by: 150uA Idle: 3.2mA In call (EGSM900, PCL5): 300mA _ Supply voltage: 3.6V nominal, 3.3V minimum _ Dimensions: 58.3 x 32.2 x 5.6mm nominal (double-sided) _ Weight: 16g _ Ambient operating temperature range: -20oC to +55oC at 93% humidity _ Customisable MMI for Handset Applications including support for Chinese and European languages _ Control by AT commands for PDA/	◆Interfaces _ 60-pin connector: Power supply connection Support for plug-in SIM card (3V or 3V/5V) Full 9-wire RS232 serial link supporting remote control by AT commands; baud rate from 300 to 115,200 bps Analog audio Dual Audio interface for internal microphone/speaker and headset Sounder output for handset ringtones Analog to digital converter Keyboard interface (5x5 matrix) 50. antenna output Battery charging for handset applications SPI interface for Handset LCD GPIO interfaces
◆ Customisable MMI Features _ SIM Toolkit _ Phonebook _ Call Records _ Settings _ Clock _ Security _ Net Services _ Data / Fax / IrDA _ Tools _ SMS (Text and PDU / Point-to-point (MT/MO) / Cell broadcast) _ Ringtone Composer	◆ GSM Supplementary Services _ Call forwarding _ Call barring _ Multiparty _ Call waiting and call hold _ Advice of Charge (AOC) _ Calling line identity _ Closed user group _ USSD _ Explicit call transfer _ Subsidy protection: Network personalisation to GSM 02.22 standard
◆ GSM Data/Fax _ CSD up to 14,400 bps asynchronous, transparent and non-transparent _ V.110 _ Fax Group 3, Class 2.0	◆ Audio _ Telephony _ Emergency calls _ Full Rate, Enhanced Full Rate & Half Rate (FR/EFR/HR) _ Echo cancellation _ Noise reduction _ DTMF