2.2
Specification
-
LR140
Wireless Specification
Frequency
Supports 2 Models
-
900Mhz, 400Mhz for different region.
(the available frequency may limited by different country’s law)
Wireless
Technology
Low Power Wide Area – LoRa WAN Technology
Radio TX Power
22dBm (Maximum). The launch power may be limited by country’s law.
Radio RX Sensitivity
-
148dBm, SF=12 @ 250bps
Spreading Factor
SF5/SF6/SF7/SF8/SF9/SF10/SF12, Default SF7
Demodulator SNR
LoRa Demodulator Signal to Noise Ratio:
-
2.5dB ~
-
20dB
Operating Mode
RTU 485: Modbus protocol over the Air (LoRa WAN Transmission) with
configurable RTU Device / Register Address
Analog Input: Pre
-
defined Current / Voltage interface
Forwarding Data
Buffer
256Bytes FIFO Data Buffer for LoRa signal transmission
Data Encryption
128bits AES with configurable key
Management
System
Management
1 x Micro USB 2.0 port for system configuration
Software Utility
Windows
©
Based LoRa Utility
I/O Interface
Antenna Connector
1x 50 ohm, Female SMA
Serial Interface
2
-
wires RS
-
485 Terminal Connector with 1kv isolation
Connector Type: Removable Terminal Connector
Supported Model: LR
-
140(Host)
Serial Parameters
Baud Rate: 1200bps,2400bps, 4800bps, 9600bps
Data Bits: 8
Parity Check: None, Even, Odd
Stop Bit: 1,2
Current Input
2 Channels
Detection Range: 4
-
20mA
Accuracy Level: 0.3%
Voltage Input
2 Channels
Detection Range: 0~10 V
