CUAV LTE-LINK se User manual

LTE-LINK SE
User's Guide
v2.0.0
CUAV TECH INC.,LTD

LTE-LINK SE user's Guide
I
目录
1 Overview...................................................................................................................................... 1
1.1 Product Features................................................................................................................ 1
1.2 Main purpose and scope of application............................................................................. 2
1.3 Safety................................................................................................................................. 2
2 Technical characteristics............................................................................................................... 3
2.1 The main function..............................................................................................................3
2.2 The main parameters...................................................................................................... 3-4
3 Product appearance and interface description.............................................................................. 5
3.1 Product appearance............................................................................................................5
3.2 Product hardware and interface description...................................................................... 5
3.2.1 Hardware interface diagram................................................................................... 5
3.2.2 Hardware and interface description........................................................................ 6
3.2.3 Wiring instructions................................................................................................. 7
4 Hardware installation and debugging........................................................................................... 8
4.1 Device connection diagram............................................................................................... 8
4.2 Interface debugging........................................................................................................... 8
4.2.1 Prepare to work.......................................................................................................8
4.2.2 Data transmission interface debugging...................................................................9
4.2.3 HDMI interface debugging..............................................................................10-11
4.2.4 TF memory card interface debugging...................................................................12
4.2.5 SIM card access and network service connection debugging.............................. 13
5 Use and operation....................................................................................................................... 14
5.1 Preparation before use..................................................................................................... 14
5.2 Boot interface and system version information............................................................... 14
5.3 CUAV cloud server connection....................................................................................... 15
5.3.1 Effective SIM card insertion detection................................................................. 15
5.3.2 Register SIM card network...................................................................................15

LTE-LINK SE user's Guide
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5.3.3 Connect to the public network..............................................................................16
5.3.4 Public network connection is successful.............................................................. 16
5.3.5 Synchronize network time to device.................................................................... 16
5.3.6 Request to connect to CUAV Cloud Server..........................................................17
5.3.7 Successfully connected to the server.................................................................... 17
5.4 Device binding and unbinding.........................................................................................18
5.4.1 Device binding................................................................................................ 18-19
5.4.2 Device unbinding..................................................................................................20
5.5 Digital transmission.........................................................................................................20
5.6 Image Transmission.........................................................................................................20
5.7 Video................................................................................................................................22
5.7.1 Premise demand....................................................................................................22
5.7.2 Video mode...........................................................................................................23
5.7.3 Several restrictions on recording.......................................................................... 24
5.7.4 TF memory card overflow handling..................................................................... 25
5.8 Taking photos...................................................................................................................24
5.9 System version upgrade...................................................................................................26
5.9.1 Online upgrade..................................................................................................... 26
5.9.2 Offline upgrade.....................................................................................................27
5.10 System version configuration restore............................................................................ 28
5.11 Attention points when equipment use............................................................................28
6 Failure analysis and troubleshooting.......................................................................................... 29
6.1 Network and server connection..................................................................................29-30
6.2 Status message indication information list...................................................................... 31
6.2.1 Upgrade function message prompt list................................................................. 31
6.2.2 Device network detection message prompt list.................................................... 31
6.2.3 External device function message prompt list...................................................... 32
6.2.4 Device management control message prompt list................................................ 33
6.3 Other abnormalities......................................................................................................... 34

LTE-LINK SE user's Guide
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LTE-LINK SE user's Guide
1
1 Overview
LTE-LINK SE is a multifunctional link system suitable for open source flight control
equipment and camera video data acquisition and transmission. The system works in a 4G
network environment and is used with the CUAV cloud platform APP to realize open source
flight control equipment and camera video Unlimited distance transmission of data. The system
uses 12V ~ 55V DC power supply as power, and a wide range of working voltage is compatible
with the power supply system of most drones on the market.
In terms of system upgrade and update, the product can upgrade the system version of the
device to the latest version officially released by CUAV Cloud, allowing users to use the system
upgrade to bring more convenient and complete functions, while also being able to experience
the latest open source flight control protocol technology. In terms of product maintenance and
processing, the system provides the function of restoring the system. If the current system is
abnormal, the user can use this function to restore the system.
The system adopts OLED display, complete status information indication, simple operation,
running status stable and reliable, it is a link device that successfully solves the open source
flight control infinite distance control and the infinite distance collection and transmission of
camera video data.
1.1 Product Feature
Efficient 32-bit ARM processor
SIM card compatible with multiple operators
Unlimited distance data transmission, the data is processed by the ChaCha20-Poly1305
encryption algorithm
Support multi-platform cloud management
Provide remote online upgrade and offline upgrade of equipment

LTE-LINK SE user's Guide
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1.2 Main purpose and scope of application
Drone flight control
Automatic cruise equipment (such as automatic cruise car, automatic cruise yacht)
Unlimited distance camera monitoring equipment
1.3 Safety
The device power cord and flight control data transmission line should use the interface
line matched by the product to avoid chip damage.
When the device is working in an environment with poor heat dissipation for a long
time, do not touch the device directly with your hands. You should disconnect the
power supply and wait for the surface temperature of the device to drop before
removing it.

LTE-LINK SE user's Guide
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2 Technical characteristics
2.1 The main function
Flight control data transmission control
Real-time viewing of camera video data
Video
Taking photos
2.2 The main parameters
Form 2- 1 Overall performance parameter list
CPU
HiSilicon Hi3516DV100
Network card
ME909S(821a)
Network
frequency
band
LTE(FDD): B1、B3、B8
LTE(TDD): B38、B39、B40,B41
DC-HSPA+/HSPA+/HSPA/UMTS: B1、B9、B5、B8、B9
TD-SCDMA: B34, B39
EDGE/GPRS/GSM: 900/1800MHz
Flight control
type
CUAV series、Pixhawk series and so on.
Data protocol
MAVLink1、MAVLink2
Transmission
distance
There is no limit in theory, depending on network coverage
Video input
1080P、720P
Video
encoding
H265
Network
expansion
No support
Cloud video
No support

LTE-LINK SE user's Guide
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storage
Video
recording
Active recording, automatic recording (automatic mode needs to be specified
by the user on the client-side)
Form 2- 2 Interface parameter list
data input
UART
Video input
HDMI
Antenna
interface
MMCX
Device screen
OLED 128*64 Pixel
Client-side
FeiGong transmission: Windows 7 and above
CUAV GS：Android 7.0 and above
For other third-party client-side, the data provided by the third party shall
prevail.
Form 2- 3 Working environment and physical parameter list
Operating
Voltage
12V ~ 55V
Operating
temperature
-10℃ ~ +60℃
Size
75.3mm 39.2mm 19mm
Weight
78g

LTE-LINK SE user's Guide
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3 Product appearance and interface description
3.1 Product appearance
LTE-LINK SE product appearance shown as Figure 3-1.
Figure 3- 1 LTE-LINK SE product appearance
3.2 Product hardware and interface description
3.2.1 Hardware interface diagram
The product hardware interface is shown in Figure 3-2, Figure 3-3.
OLED display screen
SIM card slot
Power status light
System status light
NIC status light
Power connector
Data transmission
interface.
Button
Figure 3- 2

LTE-LINK SE user's Guide
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HDMI video input
Fan machine
Antenna ANT1
Antenna ANT2
TF memory card
Figure 3- 3
3.2.2 Hardware and interface description
OLED display screen：Display LTE-LINK SE system status information.
SIM card slot：Used to access the SIM card.
Power status light：Indicates the current power supply situation of the device. If the
indicator is found to be off after power-on, it indicates that the power supply of the
device is abnormal.
System status light：When system normal operation indicator and the system is in
normal operation state, the indicator flashes at a frequency of 1s.
NIC status light：Indicates the current network status of the 4G network card. When it
flashes twice continuously within 1s, it means that the current network card is not
inserted into the SIM card or the inserted SIM card cannot connect to the network
service; when it flashes once within 1s, it means the current network card has been
inserted to the SIM card which is capable of connecting to the network ; when it is
always on, it indicates that the network card has successfully dialed in and the device
can use network services through the 4G network.
Power connector：Power supply for equipment.
Button：Used for account device binding, device CID QR code display and device
system restoration.