I-Trac GTLT2 User Manual - 7.Troubleshooting
GTLT2 USER MANUAL,
www.i-trac.cn
Page 20 of 21
Set APN
Format 1:#803#****#APN##
Format 2:#803#****#APN# APN user
name#APN password ##
#803#0000#CMNET##
#803#0000# APN# APN user name#APN password ##
Remarks:
1.If no APN username and password are required, just input APN only.
2. Use format 2 if your APN requires APN user name and APN password.
3. APN defaulted as ‘CMNET’; APN is gateway to connect internet, Each country is different, please contact your SIM card provider for APN name.
Set IP and Port
#804#****#IP # port ##
#804#0000#119.146.223.203#8886##
Remarks: IP is your server’s IP and Port.
Upload in preset interval when car
moving
#805#****#T # N ##
#805#0000#60#1##
1.
T=GPRS Upload Interval, from 5 to 65535 in the unit of second.
2.
N= GPRS Upload Time from 1-50.
In this example: GTLT2 will send location every 60 seconds, 1 location reports every time.
Upload in preset interval when car stops
#809#****#T # N ##
#809#0000#60#1##
3.
T=GPRS Upload Interval, from 5 to 65535 in the unit of second.
4.
N= GPRS Upload Time from 1-50.
In this example: GTLT2 will send location every 60 seconds, 1 location reports every time.
Read All Parameters
*RCONF# *RCONF#
Remarks: This is the command to read all the present parameters including sms/gprs mode,interval,ip,port.etc.
7.Troubleshooting
Problem: Unit will not turn on
Possible Cause:
Resolution:
Wiring was not connected properly
Check and make sure wiring connection is in order.
Battery needs charging
Recharge battery
Problem: Unit will not respond to SMS
Possible Cause:
Resolution:
GSM antenna was not installed properly
Make GTLT2 connected to GSM network.
GSM Network is slow
Some GSM networks slow down during peak time or when they have equipment problems.
Unit is sleeping
Cancel sleeping mode
Wrong password in your SMS or wrong SMS format
Write correct password or SMS format
The SIM in GTLT2 has run out of credit
Replace or top up the SIM card
No SIM card
Insert a working SIM card. Check in phone that the SIM can send SMS message.