Sun-Tech ST3940 User manual

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ST3940 User Manual
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Personal / Asset Tracker
ST3940
User Manual

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ST3940 User Manual
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Table of Contents
Revision History .................................................................................................................................................4
1. Introduction.....................................................................................................................................................4
2. Key Features...................................................................................................................................................5
2-1. GSM/GPRS Specifications ..................................................................................................................6
2-2. GPS Specifications ..............................................................................................................................8
2-3. Operational Features ...........................................................................................................................9
3. Accessories...................................................................................................................................................10
4. How to insert SIM card by step ...................................................................................................................10
5. Charging battery...........................................................................................................................................11
6. Appearance ...................................................................................................................................................12
7. How to operate..............................................................................................................................................13
8. Contacts

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Disclaimer
We, at Suntech, announce that this document and all other related products (i.e. device, firmware, and software)
have been developed by the company, Suntech International Ltd., which is hereinafter referred to as “Suntech”.
The information in this manual is believed to be accurate and reliable at the time of releasing. We, at Suntech,
also assume no responsibility for any damage or loss resulting from the use of this manual, and expressly
disclaim any liability or damages for loss of data, loss of use, and property damage of any kind, direct, incidental
or consequential, in regard to or arising out of the performance or form of the materials presented herein or in
any software program(s) that may accompany this document. When this document is released, it is most
compatible with a specified firmware version. Now that the functionalities of the devices are being developed
and improved continuously from time to time by Suntech, any alteration on the protocol, the firmware functions,
the hardware specifications of the product is subject to change without prior notice.
Copyright
We, at Suntech, notify that Suntech holds all parts of intellectual rights applicable in the copyright laws in all
the countries. The information contained in this document cannot be reproduced in any form without prior
written consent made by Suntech. Any software programs that might accompany this document can be used
only in accordance with any license agreement(s) between the purchaser and Suntech.
Document Amendments
When it comes to the firmware version column with specific firmware number, any amendment(s) on the
comments column should be made on this relevant firmware version (and the versions thereafter). Before
applying any changes made in this protocol, you are required to make sure that you have upgraded the firmware
suitable for the specified version.

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Revision History
Rev. No.
Date
Contents of Revision
FirmwareNumber
reflecting the
latest revision
Author
1.00
02 July.
2018
Initial writing
303
Wilson
1. Introduction
ST690: Personal / Asset Tracking Device
The ST690 with its holderis a waterproof (IP66compliant) hard-cased ultra-mini tracking device to be used for
various purposes like an asset tracker or a personal tracker.
Without any efforts for connecting wires, the ST3940 (hereinafter referred to as ‘device’) works autonomously
with its built-in battery. If users want to track an object with the ST3940, all they have to do is just simply put it
into the box or the carry bag where the object is contained. And then, users can track the locations of such an
object and receive an alert if the object enters or leaves a pre-defined zone.
This non-wiring device is so small that it can be hidden after being placed. So, the waterproof ST3940 is
suitable for covert tracking even in rainy weather conditions. The ST3940 is ideal for tracking various objects
such as vehicles (especially small vehicles or motorcycles), boats and valuable fixed/moving assets like

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expensive merchandises, computers, electronic products, machinery and so on.
In addition to 3-axis acceleration sensor, the ST690 has various functionalities such as ultralow-power
consumption algorithms and motion checking.
*In case the ST690 is placed inside a metal container, it may not work.
2. Key Features
New technology and the latest GPS Chipset
UMTS/HSDPA 800/850/900/1900/2100 MHz 3GPP Release 8
GSM 850/1900MHz and 900/1800 MHz
SMS/GPRS communications
Report when the battery is in a low status
Periodic reporting in real time
Built-in motion detector for alarming
ST3940 with its CradleWaterproof in compliance with IP66
ST3940 without its Cradle Waterproof in compliance with IP65
Baby’s palm-sized versatile mini tracker
Fixed asset tracking in real time with Standby Current less than 8uA.

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2-1. GSM/GPRS Specifications
Item
Description
Battery
Rechargeable 3.7V, Li-ion Battery- 1500mAh
Motion Detection
Built-in 3-axis Acceleration sensor
Standby time
Standby Time with GSM “On/Off”
Standby Time with GSM “On”
*with 1,500mA/h Li-ion battery
less than 8uA
Report once a day: 400days
3 minute reporting: 114 hours
5 minute reporting: 162 hours
10 minute reporting: 235 hours
30 minute reporting: 335 hours
*The measurements were made only under good GPS and GPRS
signals.
Frequency/ Sensitivity
GSM 850 / EGSM 900MHz -104dBm
DCS1800 / PCS1900MHz -102dBm
Temperature Range
-20°C ~ +60°C
*Caution !
Please pay a careful attention that the vehicle shall NOT be left
under direct sunlight for long time in hot weather. There is a risk
of battery explosion at hot temperature.
User Interface
Power Button, SOS Button,
Charger Adaptor, Charger & Setting Cable
LED Indicator
GPRS, GPS, Charging status
GPRS
Multi-slot Class 12
Support all 4 coding schemes
(CS-1, CS-2, CS-3 and CS-4)
‘SyncTrak’ for PC
Mini USB cable
Dimensions
50.5(W) x 75(L) x 22.5(T) mm
55.9(W) x88.3(L) x 35.6(T) mm (with cradle)
Weight
88g,
200g (with cradle)

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Approval
CE, FCC

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2-2. GPS Specifications
Item
Description
Receiver Type
56-channel U-blox7 engine
GPS & QZSS L1 C/A, GLONASS L1OF,
Galileo* E1B/L1, Compass* ready
SBAS: WAAS, EGNOS, MSAS
Update Rate
10Hz
Accuracy1)
Position 2.5m CEP
SBAS 2.0m CEP
Acquisition2)
TCXO
Cold starts 26s
1s ( Assist Now Autonomous)
Aided start<1s
Hot start<1s
Sensitivity3)
Tracking -162dBm
Reacquisition -160dBm
Cold start -148dBm
Back-up Supply
Voltage range : 2.5V to 3.6V
Antenna type
Patch Antenna
Operating Temperature
-20 ~+80℃
*1) All SV @ –130 dBm
*2) It depends on aiding data connection speed and latency
*3) The 3 figures were measured with a good active antenna.

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2-3. Operational Features
Item
Description
Configuration
either by SMS or PC
Parameter Change
either by SMS or GPRS
Command /Control
either by SMS or GPRS
Reporting
either by GPRS or SMS (as a back-up)
GPRS Communication
TCP/UDP,SMS
GPRS Connection
either always connected or upon needed
Basic Data reported
NMEA location, Speed, Course, GPS signal status Message No.,
Accumulated moving (travelling) distance
Data Storage
up to 2,000 locations in case of transmission failure or cost issue
Reporting
Possible to make a cyclic location report at an adjustable intervalonly
when command comes
Back-up Reporting
possible (Dual IP reporting or Backup SMS reporting)
Power down
Sleep on network(less than 26mA)
Deep sleep on no network (less than 8uA):
How to upgrade
Firmware
by OTA (Over-The-Air ) or PC tool.

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3. Accessories
The ST690 has two accessories:
Wall Charger
USB Cable (for charging and setting)
4. How to insert SIM card by step
There are 5 steps in inserting a SIM card into the ST690 as shown below in the pictures.
Step 1.:Please, unscrew SIM cover. Step2.:Please, insert SIM #1.
Step 3: Please, insert SIM #2. Step 4.: Please, insert SIM #3
Step 5.:Please,make an assembly with the SIM cover.

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5. CHARGING BATTERY
It is highly recommended that the rechargeable battery should be charged completely before using the device.
Connect the ST690 to its charger cable supplied by Suntech and charge it for 7 hours.
< Charging Status indicated on the battery LED >
Red blinking twice: under 10% of the full capacity
Red blinking: under 30% of the full capacity
Orange blinking:30% to80%
Green blinking: Almost charged
Green lighting: Completely charged
<Status of Charging Mode indicated on the battery LED>
As soon as the charger is connected with the device which has been turned off, the GPS LED will be turned on
and continue
<Charging Error>
When an error occurs while the battery is being charged the red LED and the green LED blink by turns.
In this case, please disconnect the charger cable and try to do charging again by reconnecting the cable.
If this error occurs continuously, please replace the battery or contact Suntech.
<Caution!!>
The ST3940 (device) should be charged by using the USB cable that Suntech provides the user with. In such
a case, however, Suntech does not guarantee that charging the device can be done completely. It is
highly recommended that the users, in charging the device, should use the battery charger provided by
Suntech.

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6. Appearance

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7. How to operate
The ST3940,a multifunctional battery-powered mini GPS tracker, is ideal for tracking personnel, valuable
assets like merchandises that are delivered by putting it onto an object.
While tracking, it reports location information about the object at a predefined interval and alerts if it detects
motion of the object. Because it is powered by battery, its user should charge the battery fully prior to using and
should turn it off when tracking is finished.
Users are required to set the reporting timing of the device at an interval with more than 10 minutes in order to
save the endurance time of the battery.
Power
Turn On
If you press POWER button for more than 3 seconds, the device will be turned on.
When the power is on, LEDs blink as below.
Turn Off
If you press the POWER button till all of the LEDs are turned on, the device goes to
shutdown. After the power is turned off, no LED blinks or lightens.
*
If you use an ST3940 device model which is powered by the External
Battery, this function does NOT work.

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Charging
Mode
Turn On
As soon as a device in a status of power off is connected with a charger, only charging
the device starts being processed. But, GSM session does not work. GPS LED is on.
The battery indicator continuously blinks.
If you press ‘power button ’of the device for more than 2 seconds in a mode of charging,
the device will turn to be in a mode of normal operation.
Device might be in an operational mode using its built-in battery. While this device is
being charged and if you press the ‘power button’of this device for more than 2 seconds,
the mode of the device will change to a charging a mode.
Red LED
GPS status indicator
Right after the device is turned on, the red LED starts to blink as below. Five (5) minutes
after the red LED starts to blink, it is turned off automatically to save battery. If you press
the power button again, the red LED will be on just for short time, for some seconds, to
show you the current status of the GPS connectivity.
Fixed : 1 time
No fixed: 2 times.
GPS error: 4 times.
Exclusive Mode of Battery Charging
The red LED continues to be in the status of ‘On’while the device is being connected to
the battery charger.

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Blue& Red
LEDs
(2 colors)
GSM network & Operating Status indicator
Right after the device is turned on, the blue LED starts to blink as below. Five (5) minutes
after the blue LED starts to blink, it is turned off automatically to save battery. If you press
the power button again, the blue LED will be on just for short time, for some seconds, to
show you the current status of the GSM network connectivity.
Network OK: 1 time
Server communication Error : 2 times
GPRS Communication Error : 3 times
No GSM (= not connected with the GSM network): 4 times.
SIM PIN Locked : 5 times
Impossible to connect with the GSM network : 6 times
No SIM Error (= an error when SIM is not available) : 7 times
In addition to the status described above, the blue LED continues to blink either if the
device has an error of SIM Locking or if it does not have a SIM. .
If you press ‘power button’of device shortly, the Red LED indicates the operation status
of the device by showing number of blinking as below.
1 time of blinking means status of Power Off
2 times of blinking mean status of hibernation
3 times of blinking meanstatus of Power Off and battery discharged. It
means that it is time to charge the battery

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Battery
LEDs
(3 colors)
Battery indicator
Normally, it blinks shortly to indicate the battery level for user as described below.
Red LED blinks twice shortly. under 10% of the full capacity
Red LED blinks. under30% of the full capacity.
Orange LED blinks. 30% to80%
Green LED blinks. Almost charged
Green LED is on. Charging has been completed.
During the charging time, the battery LED blinks continuously. But, the battery LED is
turned on when charging the battery is completed.
Protocol
Watchdo
g
If the PDP or GPRS connection keeps going invalid status for a while about 40 minutes
up to 1 hour, then the device will be reboot and recover the data communication in case
that the problem was not caused by the network side.
8. Contacts
Manufacture: Suntech International Ltd.
Manufacturer Address: (Gasan-dong, Greatvally), B-1506, 32, Digital-ro9-gil, Geumchon-
gu, Seoul, Korea
- The End of the document -

FCC RF Exposure Information
It is designed and manufactured not to exceed the exposure limits for radiofrequency (RF)
energy set by the Federal Communications Commission (FCC) of the U.S. Government.
The FCC requires wireless devices to comply with a safety limit of 1.6 watts per kilogram
(1.6 W/kg).
For typical operations, this device has been tested and meets FCC RF exposure guidelines.
Use of other accessories may not ensure compliance with FCC RF exposure guidelines.
The maximum Body-worn SAR value for this device as reported to the FCC is 1.456 W/Kg
and this device has been tested to a separation distance of 0.5 cm.
For more information about RF exposure, please visit the FCC website at www.fcc.gov
FCC Information to User
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver
is con-nected.
• Consult the dealer or an experienced radio/TV technician for help.
Caution
Modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
FCC Compliance Information : This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.