GLOBALSAT TR-203A - Manual (Page 33)

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4 GSM & GPRS
4.1 GSM & GPRS Setting
In order to activate the communication between server and device, the GPRS parameter
is necessary to set at the beginning. The GPRS parameters are included as the table
below. Please contact with your telecom operator for the APN, user name, and password.
Please contact your ISP provider for DNS1 and DNS2.
You could also set the tracker to use specific GSM frequency band by the parameter E9.
If you set E9 to be 0, tracker will search the frequency itself.
Codeword Parameters Value Description
D1 APN char(32)
D2 User Name char(32)
D3 Password char(32)
D4 DNS 1 char(32)
D5 DNS 2 char(32)
D8
GPRS mode for L4
command
Server
type
02=TCP
04=UDP
E0
Host IP 1 or domain
name
char(32)
E1 Host Port number 1 u16
E9 GSM frequency band u8
0=auto, 1=900/1800,
2=850/1900, 3=1800,
4=1900
The setup format of GPRS setting is “GS S ,IMEI,T,S,D1=y1,D2=y2,D3=y3,D4=y4, D5=y5,
D8=y6,E0=y7,E1=y8,*Checksum!”
Note:
1. If user name and password are not necessary for your telecom operator,
please keep D2 and D3 blank.
2. If the value of E0 is IP, you do not have to set D4 and D5. Please skip the
fields.