1. Úvod
The Digitus USB to Serial Adapter (Model DA-70157) provides a convenient solution for connecting serial devices to a computer via a USB port. This adapter converts a USB 2.0 port into an RS485 serial port, enabling modern computers without traditional serial ports to communicate with a wide range of serial devices. It is ideal for industrial automation, data acquisition, and other applications requiring RS485 communication.
Figure 1: Digitus USB to Serial Adapter (DA-70157) with included RS485 terminal block.
2. Obsah balení
Prosím, ověřte, zda jsou v balení přítomny všechny položky:
- 1x Digitus USB to Serial Adapter (DA-70157)
- 1x USB A Extension Cable (80cm)
- 1x RS485 Terminal Block
- 1x Product Support CD-ROM (containing drivers and documentation)
Figure 2: The Digitus USB to Serial Adapter as packaged, showing the adapter and the terminal block.
3. Nastavení a instalace
Follow these steps to set up your Digitus USB to Serial Adapter:
- Instalace ovladače: Before connecting the adapter, it is recommended to install the necessary drivers.
- Insert the provided Product Support CD-ROM into your computer's optical drive.
- Navigate to the driver folder for your operating system (e.g., Windows, macOS, Linux).
- Run the driver setup executable and follow the on-screen instructions to complete the installation.
- Alternatively, the latest drivers can often be downloaded from the official Digitus webmísto.
- Připojte adaptér:
- Connect the USB-A male end of the Digitus USB to Serial Adapter to an available USB port on your computer. You may use the included 80cm USB extension cable if needed.
- The operating system should detect the new hardware and, if drivers were pre-installed, configure the device automatically.
- Připojte sériové zařízení:
- Attach your RS485 serial device to the DB9 male connector of the adapter.
- For devices requiring screw terminal connections, use the provided RS485 terminal block. Connect the appropriate RS485 A/B and ground wires from your device to the terminal block, then connect the terminal block to the DB9 female port on the adapter.
Figure 3: Connection options for the adapter, including RS485 female, RS485 male, 4-pole industrial terminal, and USB Type-A male.
Obrázek 4: Přample of a one-to-one connection setup, showing a label printer connected to a PC via the USB 2.0 Serial Adapter and an extension cable.
4. Návod k obsluze
Once the adapter and drivers are successfully installed, your computer will recognize the adapter as a virtual COM port. You can then use any serial communication software to interact with your connected RS485 device.
- Identifikace COM portu: Open your computer's Device Manager (Windows) or equivalent system utility (macOS/Linux) to identify the assigned COM port number for the Digitus USB to Serial Adapter. It will typically appear under "Ports (COM & LPT)".
- Konfigurace softwaru: In your serial communication application (e.g., PuTTY, RealTerm, custom software), select the identified COM port and configure the serial parameters (baud rate, data bits, parity, stop bits, flow control) to match those of your RS485 device.
- Zahájení komunikace: Once configured, you can open the serial port in your software and begin sending and receiving data to and from your RS485 device.
Figure 5: The adapter is compatible with a wide range of serial devices including switches, notebooks, cash registers, modems, printers, POS systems, barcode scanners, and label writers.
5. Údržba
The Digitus USB to Serial Adapter is designed for durability and requires minimal maintenance. Follow these guidelines to ensure its longevity:
- Čištění: K čištění adaptéru používejte měkký, suchý hadřík. Nepoužívejte tekuté čisticí prostředky ani rozpouštědla, protože by mohly zařízení poškodit.
- Skladování: Pokud adaptér nepoužíváte, skladujte jej na chladném a suchém místě mimo dosah přímého slunečního záření a extrémních teplot.
- Zacházení: S adaptérem zacházejte opatrně. Nevystavujte jej pádu ani silným nárazům.
- Správa kabelů: Ensure that cables are not excessively bent or kinked, which can lead to internal wire damage.
6. Řešení problémů
If you encounter issues with your Digitus USB to Serial Adapter, refer to the following common problems and solutions:
| Problém | Možná příčina | Řešení |
|---|---|---|
| Počítač nerozpoznál adaptér. | Missing or incorrect drivers. Faulty USB port. | Ensure drivers are correctly installed from the CD-ROM or Digitus website. Try a different USB port on your computer. Restart your computer. |
| Chyby komunikace se sériovým zařízením. | Incorrect serial port settings (baud rate, etc.). Incorrect wiring of RS485 terminal block. | Verify that the serial parameters in your software match those of your device. Double-check the wiring of the RS485 terminal block (A to A, B to B, Ground to Ground). |
| Device Manager shows "Unknown Device" or error. | Problém s instalací ovladače. | Uninstall any existing drivers for the device, then reinstall the correct drivers. Ensure your operating system is up to date. |
| Přerušované připojení. | Loose connection. USB cable issue. | Ensure all connections (USB, serial, terminal block) are secure. Try using a different USB extension cable or connecting the adapter directly to the computer's USB port. |
7. Specifikace
| Funkce | Detail |
|---|---|
| Číslo modelu | DA-70157 |
| Rozhraní | USB 2.0 (Type-A male) to RS485 (DB9 male) |
| Čipová sada | FT232RL (FTDI) |
| Rychlost přenosu dat | Až 3 Mbps |
| Podporované operační systémy | Windows, macOS, Linux (driver dependent) |
| Cable Length (Extension) | 80 cm (USB A male / USB A female) |
| Rozměry produktu (D x Š x V) | 2.64 x 1.38 x 0.59 palce (přibližně) |
| Hmotnost položky | 0.035 unce (cca) |
| Barva | Black (DA-70157) |
8. Záruka a podpora
Digitus products are designed for reliability and performance. For information regarding warranty coverage and technical support, please refer to the documentation included on the Product Support CD-ROM or visit the official Digitus webUschovejte si účtenku jako doklad o koupi pro případ reklamace.
For further assistance, you may contact Digitus customer support through their official channels. Please have your product model number (DA-70157) and a detailed description of your issue ready.