PUSOKEI PCI Express 4-Port RS232 Serial Card User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your PUSOKEI PCI Express 4-Port RS232 Serial Card. This expansion card is designed to add four independent 9-pin standard serial ports to your computer, facilitating connectivity for various peripheral devices in applications such as Point of Sale (POS) and Automated Teller Machines (ATM).

Image 1.1: PUSOKEI PCI Express 4-Port RS232 Serial Card and components.

2. Product Overview

2.1 Key Features

• PCI-E 4-port RS232 serial port card.
• Expands 4 independent 9-pin standard serial ports.
• Designed for POS and ATM applications, suitable for industrial automation systems.
• Supports communication speeds up to 250Kbps.
• Provides modem control for compatibility with various serial devices.
• Ensures stable and effective control of data loss.
• Supports hot swap functionality.
• Compatible with multiple operating systems: Windows 7/8/10 and LINUX.

Image 2.1: Key features of the PCI-E to RS232 Adapter Card.

2.2 Package Contents

The package includes the following items:

• 1 x PCI Express 4-Port RS232 Serial Adapter Card
• 1 x Adapter Connector (with two DB9 serial ports)
• 1 x Baffle (standard profile)

Image 2.2: Detail of the DB9 serial ports and baffle design.

3. Specifications

Image 3.1: The WCH384 main-control chip provides 256-byte FIFO and flow control.

4. Setup and Installation

Follow these steps to install the PCI Express 4-Port RS232 Serial Card into your computer:

1. Power Off and Disconnect: Ensure your computer is completely powered off and unplugged from the power source.
2. Open Computer Case: Remove the side panel of your computer case to access the motherboard.
3. Locate PCI Express Slot: Identify an available PCI Express (PCI-E) slot on your motherboard. The card is compatible with various PCI-Express slots.
4. Remove Slot Cover: Carefully remove the metal slot cover corresponding to the chosen PCI-E slot on the back of your computer case.
5. Insert the Card: Align the PCI-E card with the slot and press it firmly and evenly until it is securely seated. Ensure the bracket is flush with the back of the case.
6. Secure the Card: Use a screw to secure the card's bracket to the computer case.
7. Connect Adapter Connector: Connect the included adapter connector cable to the appropriate header on the PCI-E card. The adapter connector provides two additional DB9 serial ports.
8. Close Case and Reconnect: Replace the computer case side panel and reconnect all cables.
9. Power On and Install Drivers: Power on your computer. The operating system (Windows 7/8/10 or LINUX) should detect new hardware. You may need to install specific drivers for the WCH384 chip, which are typically provided on a CD or available for download from the manufacturer's website. Refer to your operating system's documentation for driver installation procedures.

Image 4.1: Field of Application for the PCI-E 4-port RS232 serial card.

5. Operating Instructions

Once the PCI Express 4-Port RS232 Serial Card is successfully installed and its drivers are loaded, the four new serial ports will be available in your operating system's Device Manager (Windows) or listed under serial devices (Linux).

• Connecting Devices: Connect your RS232 compatible peripheral devices (e.g., POS terminals, barcode scanners, industrial control equipment) to the DB9 serial ports on the card.
• Software Configuration: Configure your application software to communicate with the newly added serial ports. You will typically need to select the correct COM port number and set communication parameters such as baud rate, data bits, parity, and stop bits to match your peripheral device.
• Communication Speed: The card supports communication speeds up to 250Kbps. Ensure your device and software are configured to operate within this range.
• Hot Swap: The card supports hot swap functionality, allowing you to connect or disconnect compatible serial devices without powering down the system, provided the operating system and device drivers support this feature.

6. Maintenance

The PUSOKEI PCI Express 4-Port RS232 Serial Card requires minimal maintenance. Follow these guidelines to ensure its longevity:

• Keep Clean: Periodically clean the exterior of your computer case to prevent dust buildup, which can affect internal components. If necessary, use compressed air to gently clear dust from the card's surface while the computer is powered off and unplugged.
• Environmental Conditions: Operate the computer in a well-ventilated area, away from excessive heat, humidity, and direct sunlight.
• Secure Connections: Ensure all cable connections to the serial ports are secure to prevent intermittent communication issues.

7. Troubleshooting

If you encounter issues with your serial card, consider the following troubleshooting steps:

• Card Not Detected:
  • Ensure the card is fully seated in the PCI-E slot.
  • Try installing the card in a different PCI-E slot if available.
  • Verify that your motherboard's BIOS/UEFI settings are configured to allow PCI-E devices.
• Ports Not Appearing in OS:
  • Check Device Manager (Windows) or use `ls /dev/ttyS*` (Linux) to see if the ports are listed.
  • Ensure the correct drivers are installed. Reinstall drivers if necessary.
  • Verify the adapter connector cable is securely attached to the card.
• Communication Errors:
  • Confirm that the serial port settings (baud rate, data bits, parity, stop bits) in your application software match those of the connected peripheral device.
  • Check the serial cable for damage and ensure it is correctly wired for your application (straight-through or null-modem, as required).
  • Test with a different serial device or cable if possible.
• System Instability:
  • Ensure your power supply unit (PSU) has sufficient wattage for all installed components.
  • Update your motherboard's BIOS/UEFI to the latest version.

8. Warranty and Support

For warranty information and technical support, please refer to the documentation provided with your purchase or contact your retailer. Keep your proof of purchase for any warranty claims.