1. Wprowadzenie
The UOTEK UT-850N is a universal USB to RS-485/422 serial converter designed to bridge the communication gap between modern PCs and industrial equipment utilizing RS-485/422 interfaces. This device converts USB signals to balanced differential RS-485/422 signals, providing essential connectivity without requiring an external power supply. It features surge and ESD protection, ensuring reliable data transmission in various environments.
This manual provides detailed instructions for the setup, operation, and maintenance of your UT-850N converter.
Image 1.1: UOTEK UT-850N USB to RS-485/422 Serial Converter with included terminal block.
2. Funkcje
- Normy: USBV1.1, RS-485/422 EIA.
- Sygnał USB: VCC, DATA+, DATA-, GND, FG.
- RS-485 Signal: T+, T-, GND.
- RS-422 Signal: T+, T-, R+, R-, GND.
- Tryb pracy: Asynchronous, point-to-point or point-to-multipoint, 2-wire half-duplex or 4-wire full-duplex.
- Kontrola kierunku: Automatic data flow direction control technology.
- Prędkość transmisji: 300-921.6Kbps, auto-detect serial signal.
- Nośność: Supports point-to-multipoint communication, connecting up to 32 sets of RS-422 or RS-485 devices.
- Odległość transmisji: Up to 5,000m (9,600bps) for RS-485/422; up to 5m for USB.
- Ochrona portu: Surge protection, ±15KV ESD protection.
- Złącza: USB-A male, DB9 male.
- Nośniki transmisyjne: Twisted-pair or shielded cable.
- Długość kabla: 1.5m.
- Temperatura pracy: -20°C do 75°C.
- Wilgotność względna: Od 5% do 95%.
- Obsługa systemu operacyjnego: Windows (Android/2000/2003/2008/2012/XP/Vista/7/8/8.1/10/CE), Mac, Linux.
3. Konfiguracja
3.1 Instalacja sterownika
For Windows 8, Windows 10, and newer operating systems, the UT-850N converter typically operates driver-free (plug & play). For older operating systems such as Windows 2000/2003/XP/Vista/7, or for specific Linux/Mac OS versions, driver installation may be required. Please refer to the manufacturer's website for the latest driver downloads if automatic installation does not occur.
Image 3.1: The UT-850N converter supports various operating systems, including Windows, Mac, Linux, and Android.
3.2 Połączenie sprzętowe
- Connect the USB-A male connector of the UT-850N to an available USB port on your computer.
- Identify the RS-485/422 interface on your industrial device.
- Connect the DB9 male connector of the UT-850N to your RS-485/422 device. Use the included terminal block for screw-terminal connections if your device requires it.
Image 3.2: The UT-850N converter connected to a terminal block for RS-485/422 wiring.
3.3 Wiring Diagrams and Pin Assignments
The UT-850N uses a DB9 male connector for RS-485/422. The pin assignments are crucial for correct communication. Refer to the following diagrams for standard wiring configurations.
Image 3.3: Pin assignments for DB9 male connector and physical dimensions of the UT-850N.
Image 3.4: Wiring diagrams for USB to RS-485 (point-to-point, multipoint, half-duplex) and USB to RS-422 (point-to-point, multipoint, full-duplex) connections.
4. Obsługa
4.1 tryby pracy
The UT-850N supports both RS-485 (2-wire half-duplex) and RS-422 (4-wire full-duplex) communication modes. It can be configured for point-to-point or point-to-multipoint communication. The device features internal zero-delay auto receiving and transmitting functions, automatically controlling data flow direction without requiring handshake signals (RTS, DTR).
4.2 Szybkość transmisji
The converter automatically detects the serial signal baud rate, supporting a range from 300bps to 921.6Kbps.
4.3 Wskaźniki LED
The UT-850N is equipped with LED indicators to show its status:
- Lampka zasilania: Indicates that the device is powered on and connected to the USB port.
- RXD (Receive Data) Light: Flashes when data is being received by the converter from the RS-485/422 side.
- TXD (Transmit Data) Light: Flashes when data is being transmitted by the converter to the RS-485/422 side.
Obraz 4.1: Zbliżenie view of the UT-850N showing the Power, RXD, and TXD LED indicators.
5. Konserwacja
To ensure the longevity and optimal performance of your UOTEK UT-850N converter, follow these maintenance guidelines:
- Utrzymywać w suchości: Unikaj narażania urządzenia na działanie wilgoci lub cieczy.
- Czyść delikatnie: Use a soft, dry cloth to clean the exterior. Do not use harsh chemicals or solvents.
- Kontrola temperatury: Operate and store the device within the specified temperature range (-20°C to 75°C).
- Pielęgnacja kabli: Avoid bending or kinking the cable excessively to prevent internal damage.
- Ochrona ESD: While the device has built-in ESD protection, always handle it with care, especially in dry environments, to minimize static discharge risks.
6. Rozwiązywanie Problemów
If you encounter issues with your UT-850N converter, consider the following:
- Brak kontrolki zasilania: Ensure the USB cable is securely connected to both the converter and the computer. Try a different USB port or computer.
- No Data Transmission (RXD/TXD not flashing):
- Verify all RS-485/422 wiring connections are correct according to the diagrams in Section 3.3.
- Check the baud rate settings on both your computer's serial port software and the connected industrial device. Ensure they match.
- Confirm that the industrial device is powered on and functioning correctly.
- For older operating systems, ensure the correct drivers are installed.
- Intermittent Connection/Data Errors:
- Check for electromagnetic interference (EMI) sources near the cable. Use shielded cables if necessary.
- Ensure the transmission distance does not exceed the specified limits (5,000m for RS-485/422, 5m for USB).
- Verify that the terminal resistors are correctly applied in RS-485/422 networks, especially for long distances or multi-point setups.
- Urządzenie nie jest rozpoznawane przez komputer: Try connecting to a different USB port. Reinstall or update the USB serial port drivers if applicable.
7. Specyfikacje
| Funkcja | Specyfikacja |
|---|---|
| Model | UT-850N |
| Normy | USBV1.1, RS-485/422 EIA |
| USB Signal | VCC, DATA+, DATA-, GND, FG |
| Sygnał RS-485 | T+, T-, GND |
| Sygnał RS-422 | T+, T-, R+, R-, GND |
| Tryb pracy | Asynchronous, point-to-point/multipoint, 2-wire half-duplex or 4-wire full-duplex |
| Kontrola kierunku | Automatic data flow direction control |
| Szybkość transmisji | 300-921.6Kbps (auto-detect) |
| Ładowność | Up to 32 RS-422 or RS-485 devices |
| Odległość transmisji | RS-485/422: 5,000m (at 9,600bps); USB: ≤ 5m |
| Ochrona portu | Surge, ±15KV ESD protection |
| Złącza | USB-A male, DB9 male |
| Media transmisyjne | Twisted-pair or shielded cable |
| Długość kabla | 1.5m |
| Temperatura pracy | -20°C do 75°C |
| Wilgotność względna | 5% do 95% (bez kondensacji) |
| Obsługiwany system operacyjny | Win Android/2000/2003/2008/2012/XP/Vista/7/8/8.1/10/CE, Mac, Linux |
| Waga przedmiotu | 5.5 uncji |
| Wymiary opakowania | 8.15 x 5.98 x 1.46 cala |
8. Gwarancja i wsparcie
For warranty information and technical support, please refer to the official UOTEK webOdwiedź witrynę lub skontaktuj się z autoryzowanym dealerem. Zachowaj paragon zakupu na wypadek reklamacji.
