433MHz Lora Module 

The Heyuan LoRa Data Transmission Modules, Model IOT-L2S-B1&B2, are universal communication interactive equipment designed and manufactured based on LoRa RF chip. The module integrates two interfaces of industrial standard RS485 and supports a variety of protocols to realize the data transmission between wired and wireless devices. They are widely applied in fields of IoT, wireless meter reading, smart home, smart city, fire safety, industrial manufacturing, agriculture and forestry monitoring, building energy saving etc..

 

· 2 standard interfaces of RS485, supporting a variety of protocols and communicating with various automatic devices with RS485 interfaces
· Equipped LoRa chips from Semtech for RF part
· Transparent transmission mode
· Wireless ultra-long transmission distance with up to 8km barrier free
· Small size, easy to install
· Working temperature range: -20℃~70℃, suitable in all kinds of harsh environment
· Wide operating voltage range with optional multi specification models

 

 

Parameter
Power Supply	AC85-265V,50/60Hz or DC8-36V
Power Consumption	<1W
Protocols Supported by RS485	Modbus RTU, DL/T 645
RS485 Communication Mode	Transparent Communication
RS485 Communication Baud Rates	1200-115200bps,8N1, 8E1, 8O1
Installation	Din-rail mounted installation

 

RF Parameter
Working Frequency Range	410M-525MHz
ISM Band	433MHz
Antenna Impedance	50Ω
Output Power	18dBm100mA
Sensitivity	-139dBm(SF12, broadband125KHz)
Sending Packet Length	255bytes
Receiving Packet Length	255bytes
Communication Range	6-8km

 

 

Model Selection
Model	RS485	Power Supply Voltage	Wireless Parameters
			Working Frequency	Networking Modes
IOT-L2S-B1	2	AC85-265V	433MHz/470MHz	Transparent Transmission
IOT-L2S-B2	2	DC8-36V	433MHz/470MHz	Transparent Transmission