Sun-Tech ST3940 User manual

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ST3940 User Manual
Concerning:
Rev.
Date (dd-mm-yy)
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Features and how to configure ST3940
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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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ST3940 User Manual
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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.

Doc. Title
ST3940 User Manual
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Date (dd-mm-yy)
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Features and how to configure ST3940
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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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ST3940 User Manual
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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.