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GL502MG User Manual
EGPRS/LTE Cat-M1/LTE Cat-NB2/GNSS Tracker
QSZTRACGL502MGUM0100
Version: 1.00
GL502MG User Manual
Document Title
Version
Date
Status
Document Control ID
GL502MG User Manual
1.00
2020-11-25
Released
QSZTRACGL502MGUM0100
General Notes
Queclink offers this information as a service to its customers, to support application and engineering efforts that use the products designed by Queclink. The information provided is based upon requirements specifically provided to Queclink by the customers. Queclink has not undertaken any independent search for additional relevant information, including any information that may be in the customer’s possession. Furthermore, system validation of this product designed by Queclink within a larger electronic system remains the responsibility of the customer or the customer’s system integrator. All specifications supplied herein are subject to change.
Copyright
This document contains proprietary technical information which is the property of Queclink.
Copying of this document, distribution to others or using or communication of the contents thereof is forbidden without express authority. Offenders are liable to the payment of damages. Queclink
Confidential
QSZTRACGL502MGUM0100
GL502MG User Manual
Contents
Queclink
Confidential
QSZTRACGL502MGUM0100
GL502MG User Manual
0.
Revision History
Revision
1.00
Date
2020-11-25
Author
Heymi Lin Initial
Description of Change
Queclink
Confidential
QSZTRACGL502MGUM0100 1
GL502MG User Manual
1.
Introduction
GL502MG is an IP68 waterproof GNSS tracker that features up to 3 years standby time powered by internal batteries and supports Wi-Fi. The device is ideal for lot management and other tracking applications that require real-time monitoring. GL502MG supports LTE Cat M1/NB2 network on multiple bands for operation in America, Europe, and Oceania with a fallback to
GPRS.
1.1.
GL502MG Product
Table 1.
GL502MG Product
Model No.
GL502MG
Region
Worldwide
Technology eMTC/NB-IoT
Operating Band (MHz)
GSM:GSM850/GSM900/
DCS1800/PCS1900
LTE-TDD: B39 (for Cat.M1 only)
LTE-FDD:
B1/B2/B3/B4/B5/B8/B12/B13/B
18/B19/B20/B25/B28
1.2.
Reference
SN
[1]
Document Name
Table 2.
GL502MG Protocol Reference
GL502MG @Track Air
Interface Protocol
Remark
The air interface protocol between GL502MG and backend server
1.3.
Terms and Abbreviations
Table 3.
GL502MG Terms and Abbreviations
Abbreviation Description
RXD
TXD
GND
Receive Data
Transmit Data
Ground
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GL502MG User Manual
2.
Product Overview
2.1.
Product Appearance
Magnetic Reed Switch
Figure 1.
GL502MG Product View
2.2.
Magnetic Reed Switch Description
Table 4.
Magnetic Reed Switch Description
Magnetic Reed
Note:
To power on the device: Use a magnet (1.2 mT minimum) to approach magnetic reed switch. Then the switch will be triggered and the device will
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QSZTRACGL502MGUM0100 3
GL502MG User Manual
2.3.
LED Description
LEDs
(Blue)
Queclink
Figure 2.
GL502MG LEDs
There are two LEDs on GL502MG. They can work separately and in combination to indicate the status of the device. For the details when they work separately, please see the table below:
LED
CELL LED
(Green)
Confidential
SIM is locked by PIN
Modem off
Solid on
Solid off
GPS LED GPS is in the process of fixing Fast flash
GPS is on and GPS gets fix
GPS off
Slow flash
Solid off
Fast flash: 100ms on/200ms off
Slow flash: 200ms on/1000ms off
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GL502MG User Manual
Note:
1, The LEDs will be on about 5 minutes after power on. After that, they will always be off.
2, The LEDs will not be visible because the PCB is inside opaque plastic housing.
2.4.
Parts List
Table 6.
GL502MG Parts List
Name Picture Description
GL502MG Locater
EGPRS/LTE Cat-M1/LTE
Cat-NB2/GNSS Tracker
Magnetic Buckle Kit
(Optional)
Used to install
GL502MG
Used to provide extra
Steel Cable & Steel protection from falling
Plates
(Optional)
GL502MG Data
Cable
(Optional) in case the magnetic buckle loosens
Queclink
USB data cable which can be used for firmware upgrade and configuration
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GL502MG User Manual
3.
Interface Definition
GL502MG has a 12-pin (two sides) Type-C interface. The sequence and definition of the 24-pin connector are shown in the following figure:
Figure 3.
12-pin (two sides) Type-C Interface of GL502MG
Table 7.
Description of 24-pin Connections
5
6
7
8
9
3
4
1
2
10
11
12
Pin No. Pin Name
GND
GND
VBUS
VBUS
USB DP
USB DM
N/A
UART_RXD
UART_TXD
Function Description
GND
GND
USB PWR
USB PWR
USB DP
USB DM
N/A
Debug Receive Data
Debug Transmit Data
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GL502MG User Manual
4.
Getting Started
4.1.
Opening and Closing the Case
Figure 4.
GL502MG Screw Position
To open/close the case: Unfasten or tighten the 4 screws at side.
4.2.
Turning on/off the Device
Queclink
Battery Switch Confidential
Figure 5.
GL502MG Battery Switch and Magnetic Reed Switch
QSZTRACGL502MGUM0100 7
GL502MG User Manual
To turn on: Set the battery switch on the PCB to ON position first. And use a magnet to approach magnetic reed switch. Then the switch will be triggered and the device will be powered on.
To turn off: Set the battery switch on the PCB to OFF position.
Note: When leaving factory, the internal battery switch is at “ON” position by default if SIM card is pre-inserted so the user only needs to use a magnet to make the device working and at “OFF” position if th e SIM card will be installed by the users themselves.
4.3.
Installing a SIM Card
SIM Card Holder
Queclink
Power off the device first and then install the SIM card.
QSZTRACGL502MGUM0100 8
GL502MG User Manual
5.
Installation Precautions
◆ Firmly install the device to a reliable surface to prevent falling off.
◆ Make the side with antenna face sky to have better signal reception.
◆ Do not install the device under metal surface or in enclosed environments having difficulty in getting GPS and network signal.
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GL502MG User Manual
6.
Troubleshooting and Safety Info
6.1.
Troubleshooting
Table 8.
GL502MG Troubleshooting List
Trouble
After the device is turned on, the Status LED always flashes quickly.
Messages can’t be reported to the backend server by network.
Possible Reason
The signal is too weak. The device isn’t registered to the network.
APN is not right.
The IP address or port of the backend server is wrong.
Solution
Please move the device to a place with good network coverage.
Ask the network operator for the right APN.
Make sure the IP address for the backend server is an identified address in the internet.
There is no response from
Type-C when the device is configured by using
Type-C.
The port is not ready or the device is not powered on.
Please check the port and the device to ensure they are working properly.
The device can’t get GPS fix.
6.2.
Safety Info
The GPS signal is weak.
⚫ Do not disassemble the device by yourself.
Move the device to a place under open sky.
It is better to make the side
Queclink
⚫ Do not put the device in the overheated or too humid place, and avoid exposure to direct sunlight. Too high temperature will damage the device or even cause battery explosion.
⚫ Do not use the device on the airplane or near medical equipment. Confidential
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GL502MG User Manual
7.
Appendix: Supported Accessories
⚫ Magnetic Buckle Kit (Optional)
⚫ Steel Cable & Steel Plates (Optional)
⚫ GL502MG Data Cable (optional)
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GL502MG User Manual
8.
FCC Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
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.
NOTE: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the u ser’s authority to operate the equipment.
NOTE: 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 or
Queclink connected.
-Consult the dealer or an experienced radio/TV technician for help
- This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. Confidential
QSZTRACGL502MGUM0100 12
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