Heyuan Smart Wireless LoRaWAN Modules, Model IOT-L2S-A1&A2, 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. The RF chip SX1278 from Semtech is used as RF part to realize long-range transmission. It supports LoRaWAN Class C protocol. 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..

 

Application System

Functions

 · 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, supporting LoRaWAN Class C protocol 
· Wireless ultra-long transmission range with up to 15km 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 Baud Rates	1200-115200bps
Installation	Din rail mounted installation

 

RF Parameter
Working Frequency Range	410MHz-525MHz
ISM Band	470MHz
Antenna Impedance	50Ω
Output Power	18dBm100mA
Sensitivity	-139dbm
Sending Packet Length	255bytes
Receiving Packet Length	255bytes
Communication Range	8-15km

 

Model Selection
Model	RS485	Power Supply Voltage	Wireless Parameters
			Working Frequency	Networking Modes
IoT-L2S-A1	2	AC85-265V	470MHz	LoRaWAN
IoT-L2S-A2	2	DC8-36V	470MHz	LoRaWAN