M20 Hardware Design
DATA mode, GPRS ( 2 Rx, 3 Tx ) CLASS 12
GSM850 @power level #5 <600mA,Typical 560mA
@power level #12,Typical 240mA
@power level #19,Typical 150mA
EGSM 900 @power level #5 <600mA,Typical 530mA
@power level #12,Typical 235mA
@power level #19,Typical 150mA
DCS 1800 @power level #0 <490mA,Typical 350mA
@power level #7,Typical 180mA
@power level #15,Typical 150mA
PCS 1900 @power level #0 <480mA,Typical 400mA
@power level #7,Typical 200mA
@power level #15,Typical 150mA
DATA mode, GPRS ( 4 Rx,1 Tx ) CLASS 12
GSM850 @power level #5 <350mA,Typical 270mA
@power level #12, Typical 150mA
@power level #19,Typical 115mA
EGSM 900 @power level #5 <350mA,Typical 255mA
@power level #12, Typical 145mA
@power level #19,Typical 110mA
DCS 1800 @power level #0 <300mA,Typical 200mA
@power level #7,Typical 130mA
@power level #15,Typical 105mA
PCS 1900 @power level #0 <300mA,Typical 215mA
@power level #7,Typical 135mA
@power level #15,Typical 110mA
DATA mode, GPRS ( 1 Rx, 4 Tx ) CLASS 12
GSM850 @power level #5 <660mA,Typical 510mA
@power level #12,Typical 300mA
@power level #19,Typical 180mA
EGSM 900 @power level #5 <660mA,Typical 530mA
@power level #12,Typical 300mA
@power level #19,Typical 180mA
DCS 1800 @power level #0 <530mA,Typical 360mA
@power level #7,Typical 260mA
@power level #15,Typical 160mA
PCS 1900 @power level #0 <530mA,Typical 405mA
@power level #7,Typical 260mA
@power level #15,Typical 160mA
Class 12 is the default setting. Customer can set it to GPRS Class 10 or Class 8 through AT
command. Setting to lower GPRS class would make it easier to design the power supply for the
module.
M20_HD_V1.01 - 69 -
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