Wednesday, 18 February 2009

SX-900 User Manual
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SX-900 GSM/GPRS/GPS
TRACKER MANUAL
Document Name: SX-900 GSM GPRS Manual
Updated: June 25, 2008
SX-900 User Manual
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Table of Contents
1. Hardware description
3.1 Front View ----------------------------------------------------------------------------------- 3
3.2 Rear View------------------------------------------------------------------------------------- 3
3.3 Side View ------------------------------------------------------------------------------------- 3
3.4 Bottom View----------------------------------------------------------------------------------- 3
3.5 Interior ------------------------------------------------------------------------------------------ 4
4. Specifications ------------------------------------------------------------------------------------------ 4
5 Usage
5.1 SIM card installation -------------------------------------------------------------------- 5
5.2 Battery and Charger -------------------------------------------------------------------- 5
5.3 Quick Startup ---------------------------------------------------------------------- 5
5.4 Initialization ---------------------------------------------------------------------- 5
5.5 Change the password --------------------------------------------------------------- 6
5.6 Authorization -------------------------------------------------------------------- 6
5.7 Real-time polling -------------------------------------------------------------------- 6
5.8 Auto track ------------------------------------------------------------- 7
5.9 Voice Surveillance --------------------------------------------------------------------- 7
5.10 Modes switch between “track” and “monitor” ------------------------------------ 7
5.11 Geo-fence ---------------------------------------------------------------- 7
5.12 Movement Alert --------------------------------------------------------------------- 7
5.13 Overspeed Alert ---------------------------------------------------------------------- 8
5.14 IMEI Check ---------------------------------------------------------------------- 8
5.15 SOS Button -------------------------------------------------------------------- 8
5.16 Low battery alert ----------------------------------------------------------------- 8
5.17 Hidden number tracking -------------------------------------------------------- 8
5.18 SMS center -------------------------------------------------------------------- 8
5.19 GPRS setting -------------------------------------------------------------------- 9
7. Troubleshooting --------------------------------------------------------------------- 9
SX-900 User Manual
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3 Hardware Description
3.1 Front face 3.2 Rear face
3.3 Side View
3.4 Bottom View
You can update software,
charge battery from here.
You can press the “SOS” buttons for 3s for
emergent help.
Indicator for signals.
Microphone
Turn on / off the unit here.
SX-900 User Manual
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3.5 Interior View
4. Specification
Dim. 64mm x 46mm x 17mm(1.8”*2.5”*0.65”)
Weight 50g
Network GSM/GPRS
Band 850/1800/1900Mhz or 900/1800/1900Mhz
GPS chip SIRF3 chip
GSM/GPRS
module
Siemens MC55 or Siemens MC56
GPS
sensitivity
-159dBm
GPS accuracy 5m
Time To First
Fix
Cold status 45s
Warm status 35s
Hot status 1s
Car charger
12—24V input
5V output
Wall charger
110-220V input
5V output
Battery Chargeable changeable 3.7V 800mAh Li-ion battery
Standby 48hours
Storage
Temp.
-40°C to +85°C
Operation
Temp.
-20°C to +55°C
Humidity 5%--95% non-condensing
Battery Installed
Put SIM card here.
SX-900 User Manual
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5 Usage
5.1 SIM card installation
Make sure that there is no call transfer and call display is on, and PIN code is off. The SMS
message must be in Text format as it cannot be identified in PDU format.
1 Open the rear cover and take out the battery.
2 Push the foil along and turn it left.
3 Put the SIM card into the holder, and turn the foil right and fasten it in place.
5.2 Battery and Charger
Charge the battery for 8 -12 hours prior to first use. Please use only the battery and charger
provided by the manufacturer. Full battery will support around 48 hours use. After first charge,
the battery can be charged fully in 3-5 hours.
5.3 Startup
 Put the SIM card and battery in place.
 Turn on the unit outdoors by pressing the “on/off” button until the indicator is on.
 For first use, please initialize the unit and restore it to default setting.( please refer to 5.4
for instructions.)
 In 10 to 40seconds, the unit will begin to work and acquire the GSM signal as well as the
GPS signal. The indicator will keep flashing every 4 seconds when the unit has received
the signals, otherwise it will remain on.
 When this unit receives GPS signals normally you can set the following.
5.4 Initialization
Send “begin+password” in SMS to the unit, it will reply “begin ok” and initialize all the settings.
(default password: 123456)
SX-900 User Manual
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5.5 Change the password
Send SMS password+old password+space+new password to change the password.
Remark:
5.5.1 Be sure keep the new password in mind, you have to upload the software to restore the
original setting in case of losing the new password.
5.5.2 Make sure the new password is in 6 digits, or else the tracker can not recognize the
password.
5.6 Authorization
There are only 5 numbers able to be authorized.
5.6.1 Call the tracker 10 times and it will make the cell phone number as its authorized number
automatically.
5.6.2 Send SMS admin+password+space+cell phone number to set up an authorized number.
The other authorized numbers should be set by the first authorized number. If the number is
successfully authorized, the unit will reply “admin ok!” in SMS.
5.6.3 Send SMS noadmin+password+space+authorized number to delete the authorized
number.
5.6.4 For roaming purpose, you have to add your country code ahead of the cell phone number,
for example, please send admin123456 008613322221111 to tracker to set 13322221111 as an
authorized number.
5.7 Real-time polling
5.7.1 If there is no authorized number, when any number dials up the unit, it will report a
Geo-info; If there is already an authorized number, then it will not respond when an
unauthorized number calls it up.
5.7.2 When an authorized number dials up the unit, it will hang up and report a real-time
Geo-info as below:
SX-900 User Manual
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5.8 Auto Track
Report a Geo-info at 30s intervals to the authorized numbers 5 times:
5.8.1 Set up: Send SMS t030s005n+password to the unit, it will report the Geo-info at 30s
intervals for 5 times.(s: second, m: minute, h: hour). The setting must be in 3 digits and at
maximum 255 in value.
5.8.2 Send SMS t030s***n+password to the unit, it will reply SMS many times
5.8.3 Cancel: Send notn+password to delete the “ auto track ”
Remark: the interval must not be less than 20s.
5.9 Voice Surveillance
In this mode, the user can dial up the unit to monitor the voice (please refer to 5.10 for
instruction).
5.10 Modes switch between “track” and “monitor”
5.10.1. The default mode is “track”.
5.10.2. Send SMS monitor+password to the unit, and it will reply “monitor ok!” and switch to
“monitor”mode.
5.10.3. Send SMS tracker+password to the unit, it will reply “tracker ok!” and restore to “track”
mode.
5.11 Geo-fence
Set up a geo-fence for the unit to restrict its movements within a district. The unit will send a
message to the authorized numbers when it breaches the district.
5.11.1 Set up: When the unit stays immobile in a place for 3-10 minutes, the user can Send
SMS stockade+password+space+latitude,longitude; latitude,longitude to unit to set the
restricted district. In case of breach, it will send SMS “stockade!+geo-info” to the authorized
numbers.
Remark : The first latitude&longitude is coordinate of the top left corner of the Geo-fence, while
the second latitude&longitude is the coordinate of the bottom right corner. It will alarm one time
in each setting.
5.11.2 Cancel: Send SMS nostockade+password to deactivate this function.
This function will be out of effect after the unit moves outside the district.
5.12 Movement alert
5.12.1 Set up: When the unit stays immobile in a place for 3-10 minutes, the user can send
SMS move+password to the unit, then the unit will reply “move ok!”. In case of such a
movement, it will send SMS “Move” along with a Geo-info to the authorized numbers. It will ring
the alarm one time in each setting.
5.12.2 Cancel: Send SMS nomove+password to deactivate the movement alert.
Remark: This function will be out of effect after the unit moves outside the district.
SX-900 User Manual
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5.13 Overspeed alert:
5.13.1 Set up: Send SMS speed+password+space+080 to the unit (suppose the speed is
80km/h), and it will reply “speed ok!”. When the target moves exceeding 80 km/h, the unit will
send SMS speed+080!+Geo-info to the authorized numbers. It will alarm one time in each
setting.
5.13.2 Cancel: Send SMS nospeed+password to deactivate the overspeed alert
Remark: It is recommended that the speed alarm is set at not less than 50km/h. For below that
rate, it may cause the excursion of the GPS signal influenced by clounds etc.
5.14 IMEI checking:
Send SMS imei+password to the unit to check the IMEI number.
5.15 SOS button
Press the SOS for 3 second, it will send “ help me !+ Geo-info” to all the authorized numbers
every 3 minutes. It will stop sending such a SMS when any authorized number reply SMS ”help
me!” to the tracker.
5.16 Low battery alert
It begins to alert when it is 3.7V and sends you SMS in 30m interval.
SMS format: low battery+Geo-info.
5.17 Hidden number tracking
When a hidden authorized number calls the tracker, the tracker will reply SMS with the hidden
number&Geo-info to all the authorized numbers.
5.17.1 Send SMS “hide number” to set up the hidden number.
5.17.2 Send SMS “nohide number” to delete the hidden number.
5.18 SMS center
5.18.1 Send SMS adminsms+password+space+cell phone number to set the SMS center.
If the SMS center is set up, when an authorized number sends SMS to the tracker, the tracker
will reply a SMS with Geo-info & authorized number to SMS center.
5.18.2 Send SMS noadminsms+password to cancel the SMS center.
Response SMS format: authorized number+Geo-info
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5.19 GPRS setting
In order to use the GPRS function, the user needs to set IP, Port and APN ( access point name )
by either cell phone, or our PC software.
5.19.1 Set an IP address and port:
Setup: Send SMS adminip+123456+space+IP address+space+port.
If setup successful, the tracker will reply SMS adminip ok
Cancel: Send SMS noadminip+123456
5.19.2 Set APN
We offer PC compatible software for you to set the APN. Please refer to the instruction of how
to use our PC software
As soon as the IP & Port & APN are set up, the user can make a call or send SMS to tracker.
The tracker will hand up the telephone and report the coordinates to IP address.
The message sent by tracker to IP address is as following:
Serial number + authorized number + GPRMC + command + IMEI number + CRC16
checksum.
For example, it will send GPS coordinates as below illustrated
7 Trouble Shooting
Faults Solution
Startup Fail Check the battery and see if it is fully charged or
correctly installed.
Hangup Fail In existence of an authorized number, an unauthorized
number dials up the unit. Please initialize the unit and re-set up
the authorized numbers.
Monitor Fail Check if the authorized number is setup or in the coverage
of signals.
Location report in
digits of zeros.
Don’t use it in the place beyond reach of signals. Place the
unit outdoors, especially when starting it up.

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