If you need to connect a serial device to the computer, but the computer does not have a serial port, you need a USB to serial adapter. Since there are many models, types, and manufacturers, finding the best adapter can be a challenge.
When buying a USB to RS232 serial adapter cable, you should first determine whether you require an industrial-grade adapter cable or a commercial/consumer-grade adapter cable, depending on the environment in which you plan to use the adapter. Next, you should determine whether you require an isolated or non-isolated adapter, and then you can determine whether you need an externally powered adapter, or you can use a port-powered adapter. Generally, port-powered adapters are sufficient to meet the needs of most conventional applications. Finally, you should determine whether you want to use LED lights for the TX/RX line, which is very helpful when troubleshooting, and it is strongly recommended that you do this. These 6 steps will help you make the right decision.
- Check which protocol you need to use, RS-232, RS422, or RS485. Your application may require one or more of these protocols.
- Determine how many COM port connections are needed, you may need multiple DB-9 ports. You may need a serial adapter with one port or a USB-to-serial adapter with 4 ports, 8 ports.
- Where will you use the adapter, for example, home, office, or more harsh environments, such as warehouses or industrial environments?
- What kind of device do you want to connect to? Barcode scanner, stenography, medical device, or network. These are examples of devices used by USB to serial adapter cables.
- Do you require an adapter cable with FTDI or a Prolific control chip? Our USB to serial adapter cables have FTDI or Prolific built-in processing chips. Both chips can be used on Windows, Mac, or Linux systems. FTDI is a better chip than Prolific because it is a more powerful and system-friendly controller on 32-bit and 64-bit operating systems. It works fine, while Prolific, sometimes there may be problems during the installation process. FTDI is usually used in industrial areas.
- For the DB9 RS232 side, you need to confirm you need Male DB9 or Female DB9 Port, and you need the cable with screw or nut model?
UtechCables has a large series of USB to serial adapter cables suitable for all applications; they all support Windows 7 to 10, including Mac OS X and Linux systems.
The following are examples of serial cables.