Logilink UA0042B USB 2.0 to Serial Adapter Cable User Manual

1. Introduction

The Logilink UA0042B is a USB 2.0 to Serial (RS232) adapter cable designed to connect serial devices to a computer's USB port. This adapter provides a reliable solution for connecting legacy serial devices such as modems, ISDN terminal adapters, digital cameras, label writers, PDAs, cash registers, CNC machines, PLC controllers, control printers, POS systems, barcode scanners, and label printers to modern computers lacking a serial port. It includes an additional DB9 to DB25 adapter for broader compatibility.

This manual provides instructions for the proper installation, operation, and maintenance of your Logilink UA0042B adapter cable.

2. Package Contents

Please verify that all items are present in your package:

• 1x Logilink USB 2.0 to Serial (RS232) Adapter Cable (USB Type A Male to DB9 Male)
• 1x DB9 Female to DB25 Male Adapter

Image: The Logilink UA0042B package contents, showing the USB to DB9 cable and the separate DB9 to DB25 adapter.

3. Setup and Installation

3.1 Driver Installation

Before connecting the adapter cable, it is recommended to install the necessary drivers. The Logilink UA0042B uses the PL2303GT chipset, which requires specific drivers for proper functionality.

1. Download Drivers: Visit the official Logilink support website to download the latest drivers for your operating system. A direct link for drivers can often be found on the product packaging or manufacturer's website. For this model, drivers are available at http://downloads.2direct.de/treiber/UA0042B.zip.
2. Install Drivers: Follow the on-screen instructions to install the drivers. You may need administrator privileges.
3. Restart (if prompted): If prompted, restart your computer after the driver installation is complete.

The adapter is compatible with Mac OS, Linux, and Windows operating systems up to Windows 11.

3.2 Connecting the Adapter

Once the drivers are installed, proceed with the physical connection:

1. Identify Serial Port: Determine if your serial device requires a DB9 or DB25 connection.
2. Connect to Device:
   • For DB9 serial devices: Connect the DB9 male connector of the adapter cable directly to the DB9 female port on your serial device.
   • For DB25 serial devices: First, connect the DB9 male connector of the adapter cable to the DB9 female side of the provided DB9 to DB25 adapter. Then, connect the DB25 male side of this adapter to the DB25 female port on your serial device.
3. Connect to Computer: Plug the USB Type A male connector of the adapter cable into an available USB 2.0 or USB 1.1 port on your computer.

Image: Diagram illustrating how to connect the USB to serial adapter to a PC, showing options for both DB9 and DB25 serial devices.

Image: A detailed view of the USB Type A connector, the DB9 male connector on the cable, and the DB9 to DB25 adapter.

4. Operating Instructions

After successful driver installation and physical connection, your computer should recognize the new serial port. You can verify this in your operating system's Device Manager (Windows) or system information (Mac/Linux).

1. Identify COM Port: In Windows Device Manager, expand "Ports (COM & LPT)" to find the assigned COM port number for the Logilink USB to Serial adapter.
2. Configure Software: Open the software for your serial device and configure it to use the newly identified COM port. Ensure that the baud rate, data bits, parity, stop bits, and flow control settings in your software match those of your serial device.
3. Data Transfer: The adapter supports data rates up to 115 Kbit/s.
4. Power: The adapter is powered directly via the USB port, requiring no external power supply.

5. Maintenance

To ensure the longevity and optimal performance of your Logilink UA0042B adapter cable, follow these maintenance guidelines:

• Storage: Store the cable in a cool, dry place away from direct sunlight and extreme temperatures.
• Handling: Avoid bending or twisting the cable excessively, especially near the connectors, as this can damage internal wires.
• Cleaning: Use a soft, dry cloth to clean the cable and connectors. Do not use liquid cleaners or solvents.
• Connection: Always grasp the connector housing when plugging or unplugging the cable, not the cable itself.

6. Troubleshooting

If you encounter issues with your Logilink UA0042B adapter, consider the following troubleshooting steps:

• No Device Recognition:
  • Ensure drivers are correctly installed. Reinstall them if necessary.
  • Try a different USB port on your computer.
  • Verify the cable is securely connected to both the computer and the serial device.
  • Check Device Manager (Windows) or system information (Mac/Linux) for any error messages related to the adapter.
• Communication Errors:
  • Confirm that the COM port selected in your serial device software matches the one assigned to the adapter.
  • Verify that the serial communication settings (baud rate, data bits, parity, stop bits, flow control) in your software match those of your serial device.
  • Ensure the serial device itself is powered on and functioning correctly.
• Intermittent Connection:
  • Check for loose connections.
  • Avoid using the adapter with long USB extension cables, which can sometimes cause signal degradation.

7. Specifications

Image: A detailed view of the DB9 female to DB25 male adapter.

8. Warranty and Support

Logilink products are designed for reliability and performance. For warranty information, technical support, or further assistance, please refer to the official Logilink website or contact their customer service.

You can find more information and support resources on the Logilink website: Logilink Product Support