• LoRa LR-201-S

LoRa To RS-232/422/485 Converter

Model : LR-201-S
 It work with Modbus or transparent protocol, not work with LoRaWAN.
 The devices to be used in a loop group for data transmission. It is like an RS-485 in semi-duplex but wireless.
 In the loop group just pick one LoRa device to work as a MASTER and the other LoRa devices are SLAVE.
 These devices have general LoRa features such as long range, low packet size and loose in data collecting.
 We recommend the packet not over 100 bytes per second and the condition could accept data lost.
 Generally it work good for environment data collection to get long trend. It’s not suitable for instant On/Off work.
 Distance of LoRa transmission is long range subject to antenna to be Line-Of-Sight from Master to Slaves.

p22-application-lora.jpg


  • It work with Modbus protocol but not work with LoRaWAN.
  • The devices to be used in a loop group for data transmission.  It is like an RS-485 in semi-duplex but wireless.  
  • In the loop group just pick one LoRa device to work as a MASTER and the other LoRa devices are SLAVE.
  • These devices have general LoRa features such as long range, low packet size and loose in data collecting.  
  • We recommend the packet not over 100 bytes per second and the condition could accept data lost.  
  • Generally it work good for environment data collection to get long trend.   It’s not suitable for instant On/Off work.
  • Distance of LoRa transmission is long range subject to antenna to be Line-Of-Sight from Master to Slaves.

l   LoRa : Semtech SX1272

  •  ISM band 862 ~ 936MHz
  • Receiver Sensitivity : -137 dBm
  • Transmit Output Power : 20 dBm
  • Sleep Current : 3uA (at power down state)
  • TX current < 140 mA@20 dbm , RX current < 10 mA
  • Security processor ( 128/192/256 bits AES )
  • Packet engine up to 256 bytes with CRC
  • Antenna : SMA Type , 2 dBi , changeable 
  • Distance : Up To 5000 Meters in free space
  • Data Rate : 0.244 ~ 18.2K bps (LoRa) / 300 K bps (FSK)
  • Application mode : Star

l   Serial Port

  • Port : RS-232/422/485 * 1 port ( auto Detect )
  • RS-232 : Rx , Tx , GND , RTS , CTS ( DB9 female )
  • RS-422 : Tx+ , Tx-, Rx+ , Rx- (Surge Protect )
  • RS-485 : Data+ , Data- (Surge Protect)
  • Built –in RS-422/RS-485 Terminal Resistor
  • Speed : 9600 bps
  • Parity : None , Odd , Even
  • Data Bit : 7, 8 / Stop Bit : 1 , 2

l   Setup Tool : Windows Utility

l   Power : DC 9 ~ 24V / 150ma @ 9V , 60ma @ 24V

l   Led Lamp : SYS (green) , Rx(red) , Tx(green)

l   Environment: Operating Temperature: -10℃〜70℃

                       Storage Temperature: -2080

l   Dimensions : 100 * 90 * 25 mm ( W * D * H )

l   Weight : 150 gm ( not include power )

 

Product Image:

click above photo to get large view.

Data Sheet:

LR-201-S_DataSheet 201901a.pdf

User's Manual:

LoRa_User_Manual_202212.pdf

Drivers:

upon request.


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