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Multi working mode 8km communication distance data transmission terminal LoRa DTU

Overview
Quick Details
Chipset:
SX1278
Model Number:
MDL311
Application:
Industry data transmission
Brand Name:
MIND
Place of Origin:
Sichuan, China
Product name:
data transmission terminal RS232 RS485 serial port LoRa DTU
Type:
Industry LoRa DTU
Serial data interface:
RS232/RS485
Communication Mode:
433MHz LoRa spread spectrum
Frequency Band:
400MHz to 520MHz Configurable
Working Temperature:
-25℃ ~ +70℃
Weight:
212g
Size:
90.5mm*62.5mm*23.5mm
Interface type:
Terminals
Antenna connector:
50ΩSMA female
Supply Ability
Supply Ability:
10000 Set/Sets per Month
Packaging & Delivery
Packaging Details
Multi working mode 8km communication distance data transmission terminal LoRa DTU1 set/bag (with customized parts)
Port
Chengdu/shanghai/shenzhen
 
Lead Time :
Quantity(Sets) 1 - 100 >100
Est. Time(days) 7 To be negotiated
  • Transparent transmission of serial data
  • 50uA low power consumption
  • 3-8km communication distance
  • Multiple network communication modes
In the above three working modes, MDL311 can send and receive data, and the parameters mentioned above are measured data. LoRa technology has high recei sensitivity (RSSI) and signal-to-noise ratio (SNR), coupled with our proprietary modulation and demodulation technology, LoRa wireless product has strong anti-interference ability and stable and reliable product performance. Wiring port MDL311 provides two kinds of power interface, two kinds of power interface can only choose one to use, cannot be connected at the same time. Vin+ GND: The power supply voltage range of this interface is DC 5 ~ 30V; BAT+ BAT-: The power supply voltage range of this interface is 3.4~4.2V. Serial Port RS232 (RXD, TXD, GND) and 485 interface are marked on the panel, and only one of them can be choose; If it is used at the same time, it is necessary to ensure that two serial ports of DTU are staggered in the time of recei serial port data, otherwise there will be conflicts. MDL series product adopts 32-bit ARM low-power CPU, and the unique RF communication technology of Mind technology, which makes the product standby current less than 50uA. At 50uA power consumption, MDL device is still in the working state and can receive and send data at any time, which is not the power consumption under sleeping. *The above all data is measured in "power priority mode". Flexible and powerful AD-hoc network Broadcast communication In the same network, each device communicates with each other. Point-point communication In the same network, point- point communication between any two devices can be realized. Multicast communication In the same network, single or multiple devices can be set as a group to realize communication between groups *The above three networking methods can be combined in the same network. *MDL311 coordination 4G DTU can easily set up LoRa gateway and realize remote data transmission. In addition to using local serial port line to configure parameters directly, Mind LoRa equipment also supports wireless configuration of remote device parameters. As shown in the figure above: Device A is connected to the computer through serial port cable. Using the graphical configuration software provided by our company, the parameters of local device a can be configured conveniently and quickly, and the parameters of remote device B can also be configured by the wireless network. *To configure parameters in wireless mode, it is necessary to ensure that the local device and the remote device are in the same network.
Character Description
Power Supply Vin Port: DC 5V~30V
(Only one interface can be selected) Bat Port: 3.5V~5V
Frequency 433MHz is default 400MHz~520MHz configurable
RF transmitting power Default: 20dBm / 100mW
Power Consumption T(power priority mode) @12V DC RF Power: 20dBm
Peak current of data transmission ≈60mA
Data recei peak current ≈20mA
Average Idle working current ≈15uA
  @3.7V BAT RF Power: 20dBm
Peak current of data transmission ≈140mA
Data recei peak current ≈15mA
Average Idle working current ≈50uA
Wireless transmission distance Power priority mode      3Km
Balanced working mode   6Km
Distance priority mode    8Km
*The distances were measured in open and visible conditions.
Transmission rate 0.018~37.5Kbps
Recei sensitivity -139dBm Max
Antenna Connector 50Ω SMA female
Serial port parameter RS232/RS485 level, Baudrate:1200~38400bps, Data bits: 7/8,
Parity: N/E/O, Stop bits: 1/2bits
Temperature and humidity range Working temperature: -25℃~+70℃
Storage temperature: -40℃~+85℃
Relative humidity: <95%, no condensation
Physical characteristics Length: 90.5mm, width:62.5mm High: 23.5mm

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