V-Sun V521 User manual

V521 Personal GPS Tracker Instruction Manual V3.0
1/14
V521 Personal GPS Tracker
Manual V3.0

V521 Personal GPS Tracker Instruction Manual V3.0
2/14
Content
Content............................................................................................................................................................................
2
Chapter One Preface...................................................................................................................................................2
I. Overview.............................................................................................................................................................2
II. Notice.................................................................................................................................................................
3
Chapter Two Device Description................................................................................................................................
3 I. Brief
Introduction................................................................................................................................................3 II.
Product characteristics.......................................................................................................................................4
III. Usage................................................................................................................................................................4
Chapter Three Initial Use and Model Description......................................................................................................6 I.
Working mode of device.....................................................................................................................................7
II. Switchover between the two modes..................................................................................................................7
Chapter Four Application and Operation in SMS Mode............................................................................................ 8
1. Instruction to request single positioning............................................................................................................8
3. Instruction to return Google map screenshot link for single positioning..........................................................8
4. Instruction to return map link for single positioning.........................................................................................8
5. Instruction to report on time everyday...............................................................................................................9
6 .GPS special power saving mode........................................................................................................................9
7. Instruction for calling switch............................................................................................................................10
10. Monitoring function (mute switch of earphone)............................................................................................10
11. Instruction for incoming call restriction switch............................................................................................. 11
12. Phone positioning function.............................................................................................................................11
13 Emergency alarm (SOS)..................................................................................................................................11
14. Geo-fence function.........................................................................................................................................11
15. Low battery alarm.......................................................................................................................................... 14
16. Instruction to set GPS status.......................................................................................................................... 14
17. Instruction to change time zone setting..........................................................................................................14
Chapter Five Application and Operation in GPRS Mode.........................................................................................15
1. Set GPRS access point (Access Point Name)..................................................................................................15
2. Set IP address and port.....................................................................................................................................15
3 Set timing data upload.......................................................................................................................................15
4 Phone upload.....................................................................................................................................................15
5. Emergency upload............................................................................................................................................15
6. Low voltage upload..........................................................................................................................................16
7. Instruction to change time zone setting in GPRS mode.................................................................................. 16
Chapter One Preface
I. Overview
V521 is a perfect combination of GSM and GPS technologies. The advanced technologies of the product in
GSM and GPS fields are verified by its accurate dimension and simple appearance. It represents a typical design
integrating the communication product and GPS positioning.

V521 Personal GPS Tracker Instruction Manual V3.0
3/14
We provide professional safety-guarding and car-positioning products and solutions.
Before you use the product, please take some time and go through this instruction manual to understand
operational details and receive better services.
II. Notice
1. Please read the instruction manual carefully and operate the product properly to avoid any
trouble.
2. It is recommended to install the product in a professional automobile workshop to ensure
operating safety and concealment of installation.
3. The instruction manual is only for your reference. In case of any difference between the
manual and the actual product, the latter shall prevail.
4. Product parameters and functions are subject to upgrade without notice. In case of any
question, please contact us or your distributor.

V521 Personal GPS Tracker Instruction Manual V3.0
4/14
Chapter Two Device Description
I. Brief Introduction
V521 Portable GPS tracker is a mini remote positioning tracking device based on GPS technology and
GSM/GPRS technology. It receives the latitude and longitude of the user’s location through cell phone messages and
then locates the tracker on Google Map or other digital map software; or positioning data is uploaded by the tracker
to the specified server through GPRS, and the user maysearch the real-time position and historical track ofthe tracker
on the internet.
This product is widely used in the aged and the children care, property safeguard, animal tracking, etc.
II. Product characteristics
1. Built-in high-performance GPS chipset enables the product to provide accurate positioning in the
event of weak signal and to work normally in urban area, valleys or other sight-limited districts.
2. Built-in GSM/GPRS model supports GSM805/900/1800/1900MHz, thus it can work throughout the
world.
3. It supports SMS communications or GPRS TCP connection, and receives position information
through cell phone message or used to look into movement track on internet.
4. It provides SOS function.
5. It is equipped with highly reliable electric circuit design and complies with GSM cell phone
international standards.
6. It is portable, mignon and low power consumption.
III. Usage
1. Specifications
Hardware
Parameter
GSM module
GSM 850/900/1800/1900 Quad band
Supports TCP protocol
GPS chip
U-blox-7
GPS sensitivity
-160dBm
GPS frequency
L1,1575.42MHz
Code
C/A Code
Channel
210-channel, omnibearing tracking
Position accuracy
10 meters, 2D RMS
Speed accuracy
0.1m/s
Time accuracy
1us and synchronous with GPS time
Coordinates
WGS-84

V521 Personal GPS Tracker Instruction Manual V3.0
5/14
Reacquisition
0.1s on average
Hot start
1s on average
Warm start
38s on average
Cold start
42s on average
Altitude Limit
Maximum 18,000 meter (60,000 feet)
Velocity limit
Maximum 515m/s (1000 knot)
Acceleration Speed
limit
Less than 4g
Working temperature
-25℃to 70℃
Humidity
5%~95% non-concretion
Dimension
50mm*50mm*20mm
Voltage
1200mAh, rechargeable battery(3.7V)
Charger
DC 5V
2. Product appearance
3. LED status description
3.1 Green LED ---- GPS status indicator

V521 Personal GPS Tracker Instruction Manual V3.0
6/14
Status
Description
ON
GPS unavailable
Quick flash(1s/time)
GPS available
3.2 Blue LED ---- GSM status indicator
Status
Description
ON
GSM unavailable
Slow flash (6s/time)
GSM works normally
4. Description for button’s function
Button
Description
Power switch
Insert the sim card it will power on automatically, press the
sim card eject to power off.
SOS key
Short press the key to accept calling-in
Long press3 seconds, V521 will vibrate and send the position
information to the prestored 3 user phone numbers (or upload it to
the server via the internet), meanwhile, dial the first user phone
number, if failure
5. SIM card installation
a. Select SIM card
●You can use SIM card provided by local mobile operators.
●It supports SMS/GPRS function and has enough balance.
6. Switch on/off
Insert the sim card to power on , press the sim card then eject to power off.
A hint: how to obtain better GPS signal:
1. Outdoors or open area.
2. Place V521 face up.
7. Product accessories
1. V521 personal tracker
2. One USB charging line
3. One car charger or mobile charger
4. Instruction manual (CD)
Chapter Three Initial Use and Model Description
After reading the brief introduction to the product, you must know how to install the product. Then it comes to
product’s use after SIM card is installed.
Firstly, as the user of such product, you need to pre-store telephone number before performing instruction
operation on the device. Telephone number is pre-stored as follows:
Instruction format: sos+number(1,2,3)+phone number

V521 Personal GPS Tracker Instruction Manual V3.0
7/14
For example: sos113900000000
Description: If V521 receives the instruction and returns confirmation message “SET USER NUMBER (1-3)
OK”, then pre-stored number will be set successfully.
Clear instruction format: sos+number(1,2,3),
For example: sos1
If V521 receives the instruction it will remove the pre-store number, then reply the message “CLEAR USER
NUMBER (1-3) OK”,
Note: 1. Initial password for the device is 0000.
2. The device can pre-store 3 telephone numbers at most.
3. The instruction also applies to new number which covers existing number. For example, A is the
first pre-stored number. If B also sends instruction to set the first pre-stored number, number of B will substitute
number of A and become the first pre-stored number.
I. Working mode of device
The product has the following two working modes: SMS mode (message point to point) and GPRS online mode.
1. If the user only wants to inquire for vehicle position (longitude and latitude) with cell phone, corresponding
address on Google map, please select SMS mode.
2. If the user wants to monitor vehicle real-time status and inquire for its historical track, please select GPRS
real-time online mode.
II. Switchover between the two modes
The following instruction may be used to switch over between the two modes.
Message (SMS) point-to-point mode:
Instruction format: 700 (4 digits)
For example: 7000000
Description: When V521 receives the instruction, it will automatically switch to SMS mode. After success, it
will return confirmation message “SET MODE OK, CURRENT MODE: SMS P2P”.
GPRS online working mode:
Instruction format: 710 (4 digits)
For example: 7100000
Description: When V521 receives the instruction, it will automatically switch to GPRS mode. After success, it
will return confirmation message “SET MODE OK, CURRENT MODE: GPRS”.
Chapter Four Application and Operation in SMS Mode
Most instructions are operable under both SMS mode and GPRS mode unless otherwise specified.
1. Instruction to request single positioning
Instruction format: 666
Description: When V521 receives the instruction, it will return current Google link.
Note: 1. In case of cold start andGPS is not positioned, invalid message will be returned: GPSUNAVAILABLE,
PLEASE TRYAGAIN LATER.
2. Instruction to return Chinese address for single positioning
Instruction format 1: 667
For example: 667

V521 Personal GPS Tracker Instruction Manual V3.0
8/14
Instruction format 2: 667+MAP
For example: 667MAP
Description:
1. When the device receives instruction 1, it willimmediatelyread GPS information and return Chinese
address information to the sending number.
For example: Within 31 meters southwest of juhao east gate on Jing East Road in Shenzhen
2. Send instruction 2 and a website will be returned. Open it to view current position and screenshot:
For example: http://www.gps068.com/cngps/mapaddr.asp?lng=114.09998&lat=22.55709&z=15&w=240&h=320 3
The instruction is only valid in China mainland.
3. Instruction to return Google map screenshot link for single positioning
Instruction format 1: 668
For example: 668
Description: 1.After the device receives instruction, it will read GPS information immediatelyand return Google
map screenshot address of local position. Open the website to view position information.
Example of screenshot website is as follows:
http://maps.google.com/maps/api/staticmap?center=22.557118,114.100010&zoom=15&size=240x320&mark
ers=22.557118,114.100010&sensor=true
4. Instruction to return map link for single positioning
Instruction format: 669
For example: 669
Description: When the device receives the instruction, it will read GPS information immediately and return
Google map link of local position to the number. User can use PDA or smart phone to view local position on Google
map. Website example:
http://maps.google.com/maps?f=q&hl=en&q=22.554765,114.104716&ie=UTF8&z=16&iwloc=addr&om=1
Note: If the server cannot be connected after the above stated 3 instructions (667/668/669) are sent or due to
other cause, the following messages will be returned.
1) If the server cannot be connected, it will return: SERVER BUSY, PLEASE TRYAGAIN LATER.
2) If GPS is not available, it will return GPS UNAVAILABLE, PLEASE TRYAGAIN LATER.
3) When you use Google map in China mainland, there may be deviation between the positioned position and
the actual position in special cases.
5. Instruction to report on time everyday
Instruction format: 665+HHMM
For example: 6651022
Close timing report: 665+OFF
For example: 665OFF
Description: After receiving the instruction, the device will immediately return confirmation information: SET
DAILY REPORT OK.
Note: 1. Using this instruction, the user may receive a piece of positioning information at a stated time, with its
format as shown in “Single positioning request”.
2. HH stands for hour with defined range of [00, 23]. MM stands for minute with defined range of [00, 59].

V521 Personal GPS Tracker Instruction Manual V3.0
9/14
6. Instruction for calling switch
1>Instruction format of calling off: 150
For example: 1500000
2>Instruction format of calling on: 150
For example: 1510000
Description: 1. After receiving instruction of calling off, V521 will turn off calling function (including SOS,
power failure warning calling, fence warning calling, overspeed warning) and return confirmation message “SET
VOICE CALL: OFF”.
2. After receiving instruction of calling on, V521 will turn on calling function (including SOS, power failure
warning calling, fence warning calling, Overspeed warning) and return confirmation message “SET VOICE CALL:
ON”.
Note: 1. In case of calling off, when SOS, power failure warning, fence warning or overspeed warning occurs,
message will be returned instead of call.
2. Default setting is calling function on.
7 Monitoring function (mute switch of earphone)
Instruction format: 00X
For example: 001 or 000
Description: When receiving the instruction, the device will set status of earphone switch in accordance with X
value.
X=1, earphone is switched off and the device is in monitoring mode. After setup is successful, the device will
send confirmation information to the sender: SET PROFILE OK, CURRENT PROFILE: SILENT. After earphone is
turned off, if prestored phone calls in, the terminal will not give prompt sound. About 10 seconds later, the phone
will be answered automatically. The user can hear sound from the device side but the device side cannot hear the
user.
When X=0, the earphone is turned on. After setup is successful, the device will send confirmation information
to the sender: SET PROFILE OK, CURRENT PROFILE: NORMAL. After earphone is turned on, if prestored phone
calls in, there will be prompt sound. About 10 seconds later, the phone will be answered automatically. Both parties
can converse with each other. After conversation the device will return position information with the same format as
"request for single positioning”. Information status is STATUS: ANSWER. If non-prestored phone number calls in,
it will be hung up without other response.
Note: Default setting is earphone on (non-monitoring status).
8. Instruction for incoming call restriction switch
Instruction for incoming call restriction on: 170
For example: 170
Instruction for incoming call restriction off: 171
For example: 171
Description: After success to receive the instruction for incoming call restriction on (170), V521 will return
confirmation message: SET UNLIMITED MODE OFF OK. At this time, the device can only receive incoming call
from 3 prestored numbers. Incoming call from non-prestored number will be hung up without other response.
After success to receive the instruction for incoming call restriction off (171), V521 will return confirmation
message: SET UNLIMITED MODE ON OK. The device can answer incoming call from any cell phone.
Note: Default setting is incoming call restriction on.

V521 Personal GPS Tracker Instruction Manual V3.0
10/14
9. Phone positioning function
Description: If incoming call is from one of the three prestored phone numbers and it is hung up after ringing
for 2-5 times, the device will send position information with the same format as “request for single positioning” to
the incoming call number. The information status is STATE: CALL. If non-prestored phone number calls in, it will
be hung up without other response.
10 Emergency alarm (SOS)
Description:Press SOS key for over 3 seconds to send positioning information with information format returned
from “request for single positioning” to the three prestored phone numbers. Information status is STATE: SOS. At
the same time, the first prestored phone number will be called. If it fails (the phone is turned off or cannot be
connected), the second and the third phone number will be called in sequence.
Note: If calling status is off, message will be sent to prestored user instead of calling him.
11. Geo-fence function
Geo-fence of the device has the following two modes: round geo-fence and square geo-fence.
Round geo-fence takes the set coordinates as center of circle and uses the set semi-diameter to determine fence
scope. Square geo-fence uses 4 known latitude and longitude points to determine a square fence.
When the function is activated, once V521 steps beyond fence scope, it will send positioning information with
the information format returned by above stated “request for single positioning” to the three prestored numbers.
Information status is STATE: OS. At the same time, the first prestored phone number will be called. If it fails (the
phone is turned off or cannot be connected), the second and the third phone number will be called in sequence.
When V521 enters fence scope again, it will send positioning information with information formatreturned from
“request for single positioning” to the three prestored number immediately. Information status is STATE: RS. At the
same time, the first prestored phone number will be called. If it fails (the phone is turned off or cannot be connected),
the second and the third phone number will be called in sequence.
11.1 Setting of round geo-fence scope
The user may at his discretion select the following formats to operate according to the input different formats of
coordinates.
Instruction format 1: 005Rzzz.z
For example: 005R0.1
Description: After success to receive the instruction, V521willextract current longitude and latitude information
as fence coordinate from the latest GPS data and takes R value as radius. It also turns on geo-fence and send
confirmation message to the sender: GE0-FENCE ON.
Note: zzz.z is radius with definition domain of [0.1, 999.9].
1>Instruction to turn on round geo-fence
1. Turn on geo-fence: 211
After receiving the instruction, V521 will return confirmation message: GEO-FENCE ON.
2>Turn off round geo-fence instruction: 210
After receiving the instruction, V521 will return confirmation message: GEO-FENCE OFF.
Note: 1. Fence radius shall not exceed its defined domain. When decimal digit is 0, please add 0. For example,
when R is 1, please enter 1.0.
2. If calling status is off, message will be sent to prestored user instead of calling him.
3. Degree and minutes is of sexagesimal system, i.e., 1d=60m.