1. Product Overview
The C2G 26886 USB to DB9 Serial Adapter Cable facilitates the connection of devices with a traditional RS-232 serial port to a computer's USB port. This adapter is designed for compatibility with various devices such as cellphones, PDAs, digital cameras, modems, and ISDN terminal adapters.
Key features include:
- Easy Connectivity: Converts DB9 serial devices to USB for PC attachment.
- High-Speed Data Transfer: Supports serial data transfer rates up to 115.2 K.
- IRQ-Free Operation: Operates without using IRQs, preventing conflicts and allowing multiple serial devices.
- Broad Compatibility: Compatible with USB 1.1, USB 2.0, and USB 3.0 ports.
- Virtual Serial Port: Creates a virtual serial port for device communication.
Image 1.1: The C2G USB to DB9 Serial Adapter Cable, featuring a USB-A connector on one end and a DB9 male serial connector on the other.
2. Setup Instructions
Follow these steps to properly install and set up your C2G USB to DB9 Serial Adapter Cable:
- Install Drivers: Before connecting the adapter cable to your computer, install the necessary drivers from the provided installation CD. If a CD is not available, visit the C2G support website for the latest drivers. Do not rely on your operating system to automatically find drivers, as this may lead to compatibility issues.
- Connect Adapter to Computer: Plug the USB-A end of the adapter cable into an available USB port on your computer.
- Connect Device: Connect your DB9 serial device (e.g., modem, digital camera) to the DB9 male connector on the adapter cable. Secure the connection using the thumbscrews if available on your device.
- Verify Installation: After connecting, your computer should recognize the adapter and assign a virtual COM port. You can verify this in your operating system's Device Manager under 'Ports (COM & LPT)'. Note the assigned COM port number.
Image 2.1: Diagram illustrating the connection of a computer to a serial device via the C2G USB to DB9 Serial Adapter Cable.
3. Operating Instructions
Once the C2G USB to DB9 Serial Adapter Cable is installed, you can begin using it with your serial devices:
- Software Configuration: Open the application software for your serial device. In the software's settings, select the COM port number that was assigned to the C2G adapter (as identified in Device Manager during setup).
- Adjust Port Settings: If required by your device, configure the serial port settings (e.g., baud rate, data bits, parity, stop bits, flow control) within your application software to match the specifications of your connected serial device. The adapter supports baud rates from 75 to 128000 bits/sec.
- Initiate Communication: Once configured, initiate communication through your application software. The adapter will facilitate data transfer between your computer and the serial device.
The adapter is designed for high-speed serial data transfer, making it suitable for various applications requiring reliable communication.
Image 3.1: The C2G USB to DB9 Serial Adapter Cable, which is 1.5 feet long and creates a virtual serial port for connected devices.
4. Maintenance
To ensure the longevity and optimal performance of your C2G USB to DB9 Serial Adapter Cable, follow these general maintenance guidelines:
- Storage: Store the cable in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Use a soft, dry cloth to clean the cable and connectors. Avoid using liquid cleaners or solvents.
- Handling: Handle the connectors gently when plugging and unplugging to prevent damage to the pins or housing. Avoid bending the cable sharply.
- Inspection: Periodically inspect the cable for any signs of wear, fraying, or damage. Discontinue use if damage is observed.
5. Troubleshooting
If you encounter issues with your C2G USB to DB9 Serial Adapter Cable, consider the following troubleshooting steps:
- Driver Installation: Ensure that the correct drivers were installed from the provided CD or the official C2G website before connecting the adapter. Incorrect or missing drivers are a common cause of issues. Reinstalling drivers may resolve problems.
- COM Port Conflict/Assignment: Check your computer's Device Manager to confirm the adapter is recognized and assigned a COM port. If multiple COM ports are listed or if the assigned port is high (e.g., COM11), you may need to manually reassign it to a lower, unused COM port (e.g., COM1-COM4) within Device Manager for some legacy applications.
- Application Settings: Verify that your serial communication software is configured to use the correct COM port number and matching serial settings (baud rate, data bits, parity, stop bits, flow control) for your connected device.
- Cable Connection: Ensure all connections are secure. Disconnect and reconnect the USB and DB9 ends of the cable.
- Device Compatibility: Confirm that the device you are connecting is a serial device. This adapter is not intended to connect a parallel printer or device to a USB port.
- Try Different USB Port: If issues persist, try plugging the adapter into a different USB port on your computer.
6. Specifications
Detailed specifications for the C2G 26886 USB to DB9 Serial Adapter Cable:
| Feature | Specification |
|---|---|
| Model Number | 26886 |
| Connector Type | USB, DB9 |
| Compatible Devices | Cellphones, PDAs, Digital Cameras, Modems, ISDN Terminal Adapters |
| Item Length | 1.5 Feet |
| Color | Blue |
| Number of Ports | 1 |
| Current Rating | 0.2 Amps |
| Data Transfer Rate | Up to 115.2 K |
| USB Compatibility | USB 1.1, USB 2.0, USB 3.0 |
7. Warranty and Support
This C2G product comes with a Limited 1-Year Warranty. The warranty covers defects in materials and workmanship under normal use. Please note that the warranty does not cover misuse of the product.
For technical support, warranty claims, or further assistance, please contact C2G customer service through their official website or the contact information provided with your purchase.