| model | KJT-LS47CSZK (Wireless drawstring) | |
| Protocol standards | LoRa private network protocol | |
| Frequency Range | 470～510MHz FHSS | |
| Maximum link budget | 162dB | |
| Maximum output power | 20dBm | |
| Polarization mode | Single polarization; vertical polarization | |
| Sensitivity | Transmission rate | Receiving sensitivity (dBm) |
| 2400bps | -126dBm | |
| 800bps | -130dBm | |
| 300bps | -140dBm | |
| Recommended transmission distance | 20-1000M | |
Manage | |||
| management style | Supports Chinese/English management and configuration without restarting; | ||
| reset | hardware | support | |
| software | support | ||
Function | |||
| Operating mode | P2P-S、M2P etc. | ||
| Enter configuration | Support 4 channels of IO (contact), support RS485 (optional), support wireless configuration parameters | ||
| Display and sensor buttons | Display (LED) waterproof type none | ||
| Sensor button (optional) waterproof type none | |||
| Display shows | Battery status, connection status, signal strength, command status, device type | ||
| Real-time data status display | Support real-time display of status of each IO port | ||
| Safety | |||
| wireless encryption | CPC verification AES128 | ||
| hardware | |||
| CPU | Industrial grade MCU | ||
| Memory | FLASH | 16MB | |
| SRAM | 32K | ||
| Main frequency | 48MHz | ||
1. Fix the pull rope switch on the bracket, and then weld it to the frame;
2. The distance between the two machines is 55-60 meters, and they are connected by a steel wire rope with a diameter of Φ4, and the tightness should be moderate;
3. In order to reduce the influence of the weight of the wire rope on the switch startup, weld tow rings on the frame every 5-10 meters to support the wire rope;
4. Prioritize the installation of the antenna before starting up. After installation, press the waterproof switch to automatically find the host computer;
5. The wireless pull cord switch is paired and installed with the wireless gateway or host. 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.
| Interface | |||
| Connector | Number of sockets | 1 | |
| Connector properties | M16 stainless steel waterproof switch | ||
| Antenna | Antenna interface | SMA | |
| Antenna gain | 3dBi | ||
| Antenna angle | Vertically polarized omnidirectional antenna | ||
| powered by | |||
| Power supply method | Lithium sub-battery | DC3.6v 6.5Ah | |
| Mechanical parameters | |||
| Angle | Action angle | 30° | |
| extreme angle | 60° | ||
| 动作力 | 10kg | ||
| Contact | Normally open quantity | 2 way (default) | |
| Normally closed quantity | 2 way (default) | ||
| Reset | Automatic | Level 1 alarm | |
| Manual | Level 2 alarm | ||
| Micro Switch | Omron | ||
| usage count | 10^6 | ||
| shell material | Cast aluminum (default) Stainless steel (optional） | ||
| weight | 3kg/3.5kg | ||
| Work environment and characteristics | |||
| Operating temperature | -20～60℃ | ||
| Storage temperature | -20～60℃ | ||
| Humidity (non-condensing) | ≤95% (non-condensing） | ||
| signal input | 4-way IO (contact) RS485 | ||
| size | L*W*H(mm) | 220*200*130 | |
| Working current | Full load operating current | < 0.5mA @3.6V | |
| Normal working current | < 0.15mA @3.6V | ||
| Idle state operating current | <0.05mA @3.6V | ||
