| Kernel | KJT-KNWLAT2R | |||
| Protocol standards | LoRa private network protocol | |||
| Frequency Range | 470～510MHz LoRa | |||
| Maximum link budget | 169dB | |||
| Maximum link budget | 27dBm | |||
| Polarization mode | Single polarization; vertical polarization | |||
Transmission rate Receive sensitivity (dBm) 2400bps -126dBm Sensitivity 800bps -130dBm 300bps -142dBm | ||||
| Networking method | star | |||
| Recommended transmission distance | 20-1000M | |||
| Manage | ||||
| Management style | Supports Chinese/English management, configuration without restarting; supports cloud management | |||
| Reset | hardware | support | ||
| software | support | |||
| Function | ||||
| Operating mode | P2P-S, M2P, etc. | |||
| Enter configuration | Support RS485 serial port, Ethernet interface | |||
| Protocol | MODBUS | |||
| signal light | Two-color waterproof signal light | |||
| Safety | ||||
| Wireless encryption | CPC check AES128 | |||
| Hardware | ||||
| CPU | Industrial grade MCU | |||
| Memory | FLASH | 32MB | ||
| SRAM | 2M | |||
| Expansion card (optional) | support | |||
| Main frequency | 400MHz | |||
Device installation
Before powering on, install the antenna first, take out the regulated power supply box and connect it to the PWR, pass the communication
network cable through the matching network cable waterproof head and connect it to the ETH, press ON/OFF.
Power button, STA flashes quickly and then slowly, indicating normal operation;
The smart gateway and wireless transmitter are paired and installed. The pairing process has been completed by default before leaving the factory.
The device ID is affixed to the surface of the product and installed according to the corresponding point table;
The smart gateway is connected to the host computer through a network cable for data transmission, and the transmission protocol is MODBUS
TCP.
Pairing point table
| Wireless transmitter | Wireless smart gateway | Group No | |
| 1 | CH-0， Node: 11 | CH-0， GW: 1 | 1 |
| 2 | CH-1， Node: 12 | CH-1， GW: 2 | 2 |
| 3 | CH-2， Node: 13 | CH-2， GW: 3 | 3 |
| Interface | |||
| Connector | Number of sockets | 3 | |
| Connector properties | 1-way waterproof DC interface, 1-way waterproof RJ45 interface, 1-way waterproof RS485 interface | ||
| Antenna | Antenna interface | N-type female connector 1 channel transmitting, 1 channel receiving (default) | |
| N-type female connector 1 channel relay, 1 channel 4G (optional) | |||
| Antenna gain | 3dBi | ||
| Antenna angle | Vertically polarized omnidirectional antenna | ||
| powered by | |||
| Power supply mode | DC10V-30V recommended 12Vor24V | ||
| Work environment and characteristics | |||
| Surge protection | Common mode 4Kv/differential mode 2Kv | ||
| Humidity (non-condensing) | ≤95% (non-condensing) | ||
| Operating temperature | -40～75℃ | ||
| Storage temperature | -40～80℃ | ||
| Characteristic | Number of uplink receive channels | 2 channels (supports 2 channels of parallel reception) | |
| Number of downlink launch lanes | 1 channel | ||
| Number of trunk channels | 1 channel | ||
| Size | L*W*H(mm) | 250*200*75 | |
| Working current | Full load operating current | < 1.5A @12V | |
| Normal working current | < 600mA @12V | ||
| Idle state operating current | <70mA @12V | ||
| ON/OFF： | Run button switch | STA： | Running status indicator light |
| PWR： | DC24V power interface | RS485： | 485 serial communication port |
| ETH： | Ethernet communication port |
