Sun-Tech ST4940B User manual

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ST4940B User Manual
Concerning: Rev. Date (dd-mm-yy) Page of Pages
Features and
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ow to configure ST
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Asset Tracker
ST4940B
User Manual

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ST4940B User Manual
Concerning: Rev. Date (dd-mm-yy) Page of Pages
Features and
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B
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Table of Contents
Revision History .............................................................................................................................................................. 4
1. Introduction ................................................................................................................................................................. 5
2. Key Features ................................................................................................................................................................ 6
2-1. H/W Specifications ........................................................................................................................................... 7
2-2. GPS Specifications ........................................................................................................................................... 8
2-3. Operational Features ........................................................................................................................................ 9
3. Appearance ................................................................................................................................................................ 10
4. How to operate .......................................................................................................................................................... 11
Appearance

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ST4940B User Manual
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Features and
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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
ST4940B User Manual
Concerning: Rev. Date (dd-mm-yy) Page of Pages
Features and
h
ow to configure ST
4
940
B
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Revision History
Rev. No. Date Contents of Revision FirmwareNumber
reflecting the latest
revision
Author
1.00 30 Oct. 2018 Initial writing 302 YS Kim

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ST4940B User Manual
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1. Introduction
ST4940B: Asset Tracking Device
The ST4940B is a multi-purpose tracking device useful for varied applications such as trailer or container management,
vehicle/motorcycle tracking or any kind of valuable asset tracking.
The ST4940B supports 4G networks and has a water resistant (IP67 compliant) rugged, hard-case Fixed type.
Designed to minimize power consumption efficiently, the device incorporates a large battery suitable for longer-term
usage between charges and can also be connected directly to an external power source.
*In case the ST4940B is placed inside a metal container, it may not work.
*In case the ST4940B is placed inside a metal container, it may not work.

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ST4940B User Manual
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2. Key Features
 New technology and the latest GPS Chipset
 SMS communications
 Report when the battery is in a low status
 Periodic reporting in real time
 Built-in motion detector for alarming
 ST4940B with its CradleWaterproof in compliance with IP66
 ST4940B 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 10uA.

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ST4940B User Manual
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2-1. H/W Specifications
Item Description
Battery Rechargeable 3.7V, Li-ion Battery- 18200mAh
Motion Detection Built-in 3-axis Acceleration sensor
Item Description
Motion Detection Built-in 3-axis Acceleration sensor
Frequency B2/B4/B12/B13 @LTE M1
850/900/1800/1900MHz
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 LTE M1, GPS, Charging status
‘SyncTrak’ for PC Micro USB cable
Dimensions 156(W) x 88(L) x 56(T) mm
Weight 545g,
Approval FCC

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ST4940B User Manual
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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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ST4940B User Manual
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2-3. Operational Features
Item Description
Configuration either by SMS or PC
Parameter Change either by SMS
Command /Control either by SMS
Reporting either by SMS (as a back-up)
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 4mA)
Deep sleep on no network (less than 10uA):
How to upgrade
Firmware
by OTA (Over-The-Air ) or PC tool.

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ST4940B User Manual
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3. Appearance

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4. How to operate
The ST4940B,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 ST4940B 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. 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)
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 network connectivity.
 Network OK: 1 time
 Server communication Error : 2 times
 SIM PIN Locked : 5 times
 Impossible to connect with the 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
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.

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ST4940B User Manual
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Protocol
Watchdog
If the PDP 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.
- The End of the document -
Caution
Modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
IMPORTANT NOTE:
FCC RF Radiation Exposure Statement:
This equipment complies with FCC RF radiation exposure limits set forth
for an uncontrolled environment. This equipment should be installed and
operated with a minimum distance of 20 centimeters between the radiator
and your body. This transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
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.
*. Caution
- Don’t use USB Connect. USB Connect is only use for production.
- This product is fixed to the vehicle.
- Backup battery is used when the vehicle power is off.