Overview
The Inventory Master’s LoRaWAN Wireless Data Collector is designed to provide seamless communication between RS485 or RS232 interfaces and LoRa or LoRaWAN wireless modules. It enables the integration of multiple RS485 or RS232 sensors and serves as a secondary master station using the MODBUS-RTU protocol for transparent data transmission. This device allows direct communication between the management platform and on-site nodes without requiring additional serial gateway software or complex code conversion, simplifying both remote control and data acquisition processes.
Technical Specifications
| Communication Interface | RS485, RS232 |
| Communication Protocol | MODBUS-RTU |
| Data Transmission | Transparent data transmission and protocol conversion |
| Communication Method | Active upload |
| Data Format | 1 start bit, 8 data bits, 1 stop bit, no parity, 1200bps baud rate |
| Baud Rate Range | 1200bps to 115200bps |
| Default Serial Parameters | 9600bps, 8 data bits, no parity, 1 stop bit |
| Communication Rate | 300Kbps, programmable |
| Lora Frequency Band | 410 to 525 MHz, 863 to 870 MHz, 902 to 928 MHz, 915 to 928 MHz (ISM global free band) |
| Modulation Methods | Lora spread spectrum modulation, supports FSK, GFSK, MSK, GMSK, OOK |
| Acquisition Frequency | Default 1 minute, adjustable remotely |
| Receiving Sensitivity | Standard, -140 dBm |
| Communication Distance | Open air > 6561 ft (2000 m) with external antenna at 18 dBm, 1200bps |
| Networking | Star wireless network |
| Terminal Category | Slave |
| Node Address | 0 to 255 (DIP switch hardware setting) |
| Power Supply Voltage | DC 12 to 24 V |
| Power Consumption | 5 W |
| Operating Temperature | -13 °F to 131 °F (-25 °C to 55 °C) |
| Operating Humidity | 0 to 95% RH |
