Mainlink Maestro M52 User manual

Maestro
Long-range Wireless Transmission System
M52 User's Manual V1.1 2020.07
Introduction / Installation Guide / Instruction

Version：V1.0（2020.02）
Copyright © 2020 Mainlink All Rights Reserved
2
Disclaimer
Please read the user's manual carefully before use. Be sure to pay attention to the
warnings and understand all points completely.
Please strictly abide by the local radio frequency management regulations.
Please follow the installation steps in the manual to use this product. Our company
and agent will not take legal responsibility for the damage of equipment or personnel
caused by the installation and modification of users.
This copyright of this manual belongs to Shenzhen MainlinkAero Communication
Technology Co., LTD. No one may make copies without written consent.
Caution
Attention to installation
1. Before power on, make sure the antenna connection is reliably . Otherwise, it will cause
damage to the device.
2. Make sure that the voltage is within the range of use.
3. Please pay attention to the EMC of all the electronic equipments on your drone.
4. It is recommended that the antenna should be installed downward and keep the antenna
away from the metal on the drone.
5. Make sure to use the matching antenna.
Before use
1. Make sure that all cables are connected correctly and firmly.
2. No foreign objects (e.g. liquids, sand, etc.) can be entered inside the device.

Version：V1.0（2020.02）
Copyright © 2020 Mainlink All Rights Reserved
3
3. It takes 15 seconds for the device to start. Video and data cannot be transferred until the
device has finished booting.
4. Please ensure that the environment in which the equipment is used is free of other
electromagnetic interference.
5. When the signal weakens, you can improve the effect by changing the heading direction
of the antenna.
Get instructional video
In order to use the system correctly, you can get the instructional
Video at the following address:
https://mainlinkaero.com/cn/video/video-main.html
Download Maestro Assistant
Download the software at the following address：
https://mainlinkaero.com/cn/download/download-main.html

Version：V1.0（2020.02）
Copyright © 2020 Mainlink All Rights Reserved
4
CONTENTS
Disclaimer...............................................................................................................................2
Caution ...................................................................................................................................2
Attention to installation ............................................................................................2
Before use.....................................................................................................................2
Get instructional video ..............................................................................................3
Download Maestro Assistant...................................................................................3
Packing list.............................................................................................................................6
Overview ................................................................................................................................7
Features ..................................................................................................................................8
M52 Interface Description .................................................................................................9
Installation ...........................................................................................................................12
Air..................................................................................................................................12
Ground.........................................................................................................................12
Quick start ..................................................................................................................14
M52 CODEC module MF05 ....................................................................................15
M52 with Mission Planner ......................................................................................16
Improve RC controller distance through SBUS .................................................20
Maestro Assistant...............................................................................................................22
Interface of Maestro Assistant...............................................................................22
How to use Maestro Assistant...............................................................................24
1. Connect M52 with Maestro Assistant。.....................................................24
2. Read current parameter。...........................................................................24
3. Configurations .............................................................................................25
M52 Web UI Configuration Description ......................................................................27
Login ............................................................................................................................28
Settings........................................................................................................................28
Wireless Parameter setting.....................................................................................30
System Update ..........................................................................................................31

Version：V1.0（2020.02）
Copyright © 2020 Mainlink All Rights Reserved
5
System Operation .....................................................................................................32
Specification........................................................................................................................33
FAQ ........................................................................................................................................35

Version：V1.0（2020.02）
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Packing list
Device X 2
Accessories
2Pin XT30 cable
X 2
3Pin cable
X 6
For Power
For UART and SBUS
4Pin cable
X 2
7Pin cable
X 2
For Ethernet
For Ethernet and Power_Out
Antenna
X 2
Fiber-glass antenna
X 2
For air unit
For ground unit

Version：V1.0（2020.02）
Copyright © 2020 Mainlink All Rights Reserved
7
Overview
Industry drone market is developing very fast in recent years. The fight time and
distance of drones are getting longer and longer. M52, a long-range wireless transmission
system, is designed for VTOL fixed wing and other long-range drones. The system can
transmit video, fight control data, gimbal control data, and RC data simultaneously. With the
advantage of high level intergration and powerful function, M52 is a typical good product to
meet long-range transmission requirements.
There are three ethernet ports in M52. Users can connect it to ethernet gimbal and
other payload simultaneously. If you want to connect HDMI/SDI/AV port payload, we have
MF05、MF08 to meet your needs. You only need one single switching cable to connect M52
and MF05.And the switching cable is in the accessory box. For more information, please
refer to the relevant section below. There are two UART port——UART1 and UART2. Two
protocols, Mavlink and Transparent, are supported. Users can make changes easily through
MaestroAssitant or Webpage. There are two SBUS——SBUS_IN and SBUS_OUT for RC
data transmission,
There are two frequency bands——800MHz and 1.4GHz. Users can choose
according to their needs. Please choose the suitable frequency band according to local
regulations.
The weight of M52 is 143g, making it very suitable for long-range drones. With
advanced radio frequency and encryption technology, M52 can achieve long distance
secure transmission. The maxium transmission distance of M52 can reach 34km*1.
We are going to open up the SDK in M52 platform. Users can easily complete
secondary development. For more information of SDK, please look up on our official
website. The software SDK and examples will be continuously updated.
*1Test under LOS and no interference conditions。

Version：V1.0（2020.02）
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Features
Long distance Modulation
-Up to 34km @ LOS - OFDM
Video interface Data interface
- Ethernet *3 - UART（TTL/RS232）/SBUS，
Hopping/Fixed Frequency Frequency Band
-Fixed: user defined - 800MHz/1.4GHz
-Hopping: automatic Working mode
BW - Air unit can be ：Point to point mode
-3/5/10/20 MHz Repeater mode
Work temperature Power range
- 40℃～+70℃- DC 9~28V Battery 3S~6S

Version：V1.0（2020.02）
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9
M52 Interface Description
side view
1. Power indicator
This indicator is solid green when air unit is booting.
2. Link indicator
LED Pattern Description
solid green Wireless link is established
light off Wireless link is lost
3. Status Indicator
LED Pattern（Blink only in booting）Description
Blink 2 times Initialization OK, Frequency is 1.4G
Blink 1 time Initialization OK, Frequency is 800M
Blink 3 times Switch mode (Swith from air to ground, vice verse)
Blink slow all the time Enter configuration mode
Blink fast all the time Device abnormal
4. RSSI Indicator
LED Pattern Description
3 solid green Wireless signal is strong
2 solid green Wireless signal is medium

Version：V1.0（2020.02）
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1 solid green Wireless signal is weak
all LED turn off No wireless signal
5. Ethernet and DC out.
Number
Character
Description
Input/Out
put
1
T+
TX+
O
2
T-
TX-
O
3
R+
RX+
I
4
R-
RX-
I
5
G
GND
I/O
6
G
GND
I/O
7
V
+12V DC output（Maximum current 1A）
O
6. Ethernet
Number
Character
Description
Input/Output
1
T+
TX+
O
2
T-
TX-
O
3
R+
RX+
I
4
R-
RX-
I
7. Two SMA antenna interface
8. Power interface
Number
Character
Description
Input/Output
1
G
GND
I
2
V
+Vcc Input (DC 9~28V)
I
9. RJ45 Ethernet
10. SBUS OUT
Number
Character
Description
Input/Output
1
G
GND
I/O
2
V
+5V Output（Maximum current 1A）
O