3. O erating Instructions.
SMS rotocol of 900E, the default assword of 900E is 000000
SMS Instruction Format Remark
1 Request one position A******,000 000: command code
******: password, default 000000
2 Modify user password A******,001,###### 001: command code
******: old password , default 000000
######: new password
3 Set a preset p one number for SOS
button or monitoring number
A******,002,1, Tel Number
A******,002,2, Tel
Set SOS number
Set monitoring number
4 Set t e time interval of
position refres to SOS number
A******,003,XXX XXX =000,stop
XXX = 001 – 999 time internal (unit: min)
5 Set low power alarm W en t e 900E
voltage is lower t an t e preset
value, 900E will send
one lower power alarm SMS to t e
control number. Ot erwise,t ere is
not t is function in ve icle tracker.
A******,004,X X : voltage preset value
X=0, close (default )
X =1, <3.5V send SMS alarm
X =2, <3.6V send SMS alarm
X =3, <3.7V send SMS alarm
X =4, <3.8V send SMS alarm
X =5, <3.9V send SMS alarm
6 Set over speed alarm W en t e
900E speed ig er t an t e preset
value, 900E will send one over
speed alarm SMS to t e control
A******,005,XX XX : t e speed preset value
XX = 00 , close
01 =
XX =
99 (unit: XX Km/ )
7 GPRS Status, To
c eck GPRS Status
A******,502 502: command code
8 Get IMEI A******,505
9 Set GPRS internal of position refres A******,506,00030 00030: Suc as 30 seconds interval is
00030
10 C eck GPRS internal of position
refres
A******,507
11 Inquire GPRS parameter Retrue
Including IP, Port, APN
A******,006
12 Control t e output A******,007,P,F P: the position of the
output
P =1 output 1 P =2 output 2
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