1. Inleiding
The Aideepen RT18A01 is a versatile RS485 Transceiver Wireless Repeater module designed for reliable wireless data transmission. It supports both 433MHz and 868MHz FSK UHF frequencies, offering flexibility for various applications. This module can function in one-to-one, repeater, or master-slave configurations, making it suitable for extending RS485 bus networks wirelessly.
2. Kenmerke
- Widely used in various industrial and home automation applications.
- Compact size for easy integration and deployment.
- Available in 433MHz and 868MHz frequency options.
- Supports one-to-one, repeater, and master-slave communication methods.
- Transparent data transmission.
3. Spesifikasies
3.1. RT18A01 Module
| Parameter | Waarde |
|---|---|
| Modelnommer | RT18A01 |
| Tik | DC/DC-omskakelaars |
| Koppelvlak | RS485 |
| Werk Voltage | DC 5V |
| Werkstroom | 5-40mA |
| Frekwensie | 433MHz / 868MHz (selectable) |
| Stuur krag | -40 ~ +20dBm |
| Ontvang Sensitiwiteit | -114dBm |
| Werkstemperatuur | -25°C ~ +75°C |
| Air-to-Ground Transmission Distance | 500 miljoen |
| Afmetings (sonder antenna) | 58.5 x 30 x 13.8 mm |
| Baud Rate (AT mode) | Fixed 9600BPS |
| Baud Rate (Transparent mode) | 1200, 2400, 4800, 9600 (default), 19200 |
| Uitset tipe | ENKEL |
| Uitset krag | 1 - 50W |
3.2. Suction Cup Antennas
| Parameter | 433M Antenna | 868M Antenna |
|---|---|---|
| Applicable Frequency | 315MHz / 433MHz / 470MHz | 868MHz/915MHz |
| Wins | 5.0 dBi | 5.0 dBi |
| SWR | < 1.5 | < 1.5 |
| Insetimpedansie | 50 ohm | 50 ohm |
| Antenne lengte | 145 mm | 110 mm |
| Kabel tipe | RG174 | RG174 |
| Kabellengte | 1.5 miljoen | 1M |
| Connector Tipe | SMA Plug Straight | SMA Plug Straight |
4. Opstelinstruksies
4.1. Moduleverbinding
The RT18A01 module features standard RS485 and power connections. Connect your device to the module as follows:
- 5V: Connect to a DC 5V power supply.
- GND: Koppel aan grond.
- A+: Connect to the A+ terminal of your RS485 device.
- B-: Connect to the B- terminal of your RS485 device.
Ensure correct polarity for both power and RS485 data lines to prevent damage.
4.2. Antenna installasie
Each RT18A01 module requires an antenna for wireless communication. The module comes with a SMA plug straight connector for the antenna.
- Select the appropriate antenna (433M or 868M) based on your module's frequency. The 868M antenna is typically white.
- Carefully screw the SMA connector of the antenna onto the corresponding port on the RT18A01 module until it is finger-tight. Do not overtighten.
5. Bedryfsinstruksies
The RT18A01 module supports various communication modes, allowing for flexible network configurations.
5.1. Communication Methods
For systems with two or more modules:
- Two Modules (One-to-One): Module 1 and Module 2 can send data directly to each other.
- Three or More Modules (Repeater Mode): Module 1 sends data, Module 2 acts as a repeater (multiple repeaters can be used), and Module 3 receives data. This extends the transmission and reception distance.
- Three or More Modules (Master-Slave Control): One module acts as the master device, and the others function as slave devices. This mimics a wired RS485 bus network. The master sends data, and all slave devices receive it. Any slave device can send data, and the master and other slave devices can receive it.
5.2. Baud Rate Settings
- AT Mode: The baud rate is fixed at 9600BPS when configured in AT mode.
- Transparent Transmission Mode: The baud rate can be configured to 1200, 2400, 4800, 9600 (default), or 19200.
6. Aansoeke
The RT18A01 module is suitable for a wide range of applications, including but not limited to:
- RS485 relay systems
- IT Appliances
- LED Controller systems
- Draadlose meterlesing
- Toegangsbeheerstelsels
- Data-insameling
- Slim toestelle
- Recognition systems
- Remote control and telemetry systems
- Modbus temperature sensors
- Smart Home and Home Automation solutions
7. Gebruikerswenke
- Programmering: The modules come with a default baud rate of 9600BPS in transparent transmission mode. If specific configurations are needed, refer to the detailed PDF manual for AT mode programming instructions.
- Frekwensiekeuse: Ensure that all modules intended to communicate are set to the same frequency (either 433MHz or 868MHz) and use the corresponding antenna.
- Kragtoevoer: Always use a stable DC 5V power supply to ensure optimal performance and prevent unexpected behavior.
8. Probleemoplossing
- Geen kommunikasie:
- Check power supply (DC 5V) and ground connections.
- Verify RS485 A+ and B- connections are correct and not swapped.
- Ensure all communicating modules are set to the same frequency (433M or 868M).
- Confirm that the baud rates are identical across all communicating modules.
- Check antenna connections; ensure they are securely attached.
- Reduce the distance between modules or ensure line-of-sight for optimal performance.
- Intermitterende verbinding:
- Check for sources of interference (other wireless devices, large metal objects).
- Ensure antennas are positioned optimally and not obstructed.
- Verify power supply stability.
- Module reageer nie:
- Disconnect and reconnect power.
- Check for physical damage to the module or antenna.
9. Onderhoud
- Keep the module and antennas clean and free from dust and moisture.
- Vermy die blootstelling van die module aan uiterste temperature of direkte sonlig.
- Handle the module with care to prevent physical damage to components or connectors.
- Ensure proper ventilation if enclosed in a casing.
10. Waarborg en ondersteuning
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For technical support, troubleshooting assistance, or warranty claims, please contact your retailer or the manufacturer directly.
A detailed user manual in PDF format is available for download, providing comprehensive information on advanced configurations and usage scenarios. Please refer to the product page or manufacturer's website for the PDF document.
