Usb to serial port converter

Types of usb to serial port converters

A USB to serial port converter is a device that connects a USB port on a modern computer to a serial device. Over the years, the converters have evolved and are available in different types. The main types include;

• Prolific PL2303: These chips are well-supported in various operating systems like Linux and Mac OS. They are used in devices like GPS receivers, digital cameras, and mobile hard drives, among others.
• FTDI FT232R: FTDI converters are reliable and known for their high-performance level. Many manufacturers use them when making USB to serial cable due to their stability.
• Silicon Labs CP210x: The Silicon Lab series of USB-to-RS-232 converters offers a wonderful alternative. They provide reliable data transfer and are compatible with various operating systems.
• Keyspan High-Speed USB Serial Adapter: The adapters are known for their ease of use. Therefore, they are ideal for users who want a plug-and-play solution.
• StarTech 4-Port USB Serial Converter: These converters can connect several serial devices simultaneously. Therefore, they are useful in applications that require multi-port connectivity.
• Ugreen USB to Serial Converter: It is a primary cable used for converting USB to RS232. It works well for most users but may have compatibility issues with some devices.
• Cable Matters USB to Serial Adapter: This adapter is renowned for its performance and reliability. Its popularity is attributed to its effectiveness for users who connect USB to RS232.
• Pluggable USB Serial Adapter: These adapters offer an easy and reliable way to connect USB devices to a serial port. They are popular among users who need a simple plug-and-play connection.

Function and Features

• Corrosion Resistance:

  Most serial port converters have gold-plated connectors for corrosion resistance. Since converted cables plug into numerous devices, the gold plating prevents oxidation. As a result, the cables maintain good signal transfer over long periods of usage.

• LED Indicators:

  Some USB to serial converters have LED lights to show the device's working status. Different colors indicate converter activity. In case of an error, the user can easily troubleshoot the issue. The converters with LED indicators make it easy to monitor devices without extra equipment.

• Angle Plug Design:

  Converters with angled plugs have less strain the cable connections experience. The plugs create a cable that does not interfere with other adjacent ports. Therefore, users can connect devices even in cramped spaces. Also, the lower plug strain reduces cable connection wear.

• F/T or C/C Adapter:

  This adapter converts F to T or C to C thread types. They are often used by plumbers and mechanics when connecting instruments. The F-to-T thread type swap allows threads to fit together securely. That prevents leak issues when joining plumbing or fuel lines.

  The C-to-C version connects two devices with similar gendered ports. For instance, a cable with two male ends connects two male ported devices together. It changes the port type so devices can link without gendered adaptors.

• Durable Housing Construction:

  A sturdy housing protects against drops or tough environments. Housed in plastic or metal casings, converters can withstand impacts and prolong their use. Plastic casings are lightweight and more durable. On the other hand, metal casings provide the highest durability.

• Data Rate:

  The device's data transfer speed and performance are determined by this factor. The low-speed devices work well in applications with light data transfer needs. The high-speed converters work best in situations that require high performance. High-performance devices transfer data reliably and with less latency.

• Device Compatibility:

  A broad compatibility range between models enables users to connect USB ports to serial ports on a wide variety of devices. It features printers, scanners, GPS devices, gaming consoles, and industrial equipment. The device plug-and-play feature allows immediate use upon connection without special installation.

• Protocols:

  Multiple protocols ensure smooth data transmission. Different devices utilize various rules for exchanging information. So, protocols like RS-232 handle diverse setups, from simple tasks like connecting modems. While the RS-485 works better in long-distance connections, especially in industrial settings.

• Data Format Conversion:

  Anything needing data conversion between two formats can use the converter. It could be turning a number from decimal to hexadecimal. Or changing a date format from MM/DD/YYYY to DD/MM/YYYY. The device changes data formats to ensure compatibility between systems that work differently.

Scenarios of usb to serial port converter

USB to serial port converters can be applied in many industries for tasks that require converting a USB signal to a serial signal. Here are the main uses;

• Manufacturing and Automation

  In industrial manufacturing, this converter is used to connect and control many machines. The converter is connected to a laptop and the other end to a machine or device with a serial port. This connection will enable the transfer of control signals for tasks such as machine tooling and robotics control.

• Telecommunications:

  TELCO industries use serial port converters to connect modems, routers, and serial console cables. These connections are made to configure network devices, troubleshoot problems, and provide technical support.

• Device Modernization:

  Many devices in the consumer electronics industry have serial ports. Converters are used to upgrade these devices so they can be connected to computers, laptops, and other devices with USB ports. This connection will enable the transfer of data to and from the device. Increased functionality and data transfer will result.

• Point Of Sale Systems:

  The systems used at points of sale have serial port POS terminal devices such as barcode scanners and printers. These terminals are connected to the POS system using a USB converter port. This connection allows data to be transmitted and transactions to be processed.

• Medical Industry

  Medical equipment like infusion pumps, blood pressure cuffs, and respiratory devices have serial ports. USB to serial converters connect these devices to computers for monitoring, data collection, and machine troubleshooting.

• Homely Automation

  Devices like weather stations, serial port sensors, and security cameras can be connected to a computer using a serial port converter. The computer can monitor, sensor data can be transferred, and alerts can be received.

How to Choose USB to Serial Port Converters

When choosing a USB to serial port converter, it's essential to consider various factors to ensure compatibility, functionality, and performance for the specific application. Below are some important factors to consider when choosing USB to serial port converters.

• Required Number of Serial Ports: The number of serial devices to be connected determineswhether a single-port or multi-port converter is needed. A single-port converter suffices for connecting just one serial device to a USB port. However, a multi-port converter is more efficient when multiple devices need to be linked simultaneously. These converters, equipped with multiple serial ports, allow several devices to be connected to a single USB port in one go, providing a seamless solution and helping to avoid the inconvenience of having to use multiple adapters.
• Compatibility with Operating System: Before purchasing, it is advisable to verify that the converter can work with the operating system on the computer. Most USB converters can work with widely-used operating systems such as Windows, Mac, Linux, and Chromebook OS. Nonetheless, occasionally, one may come across a converter that is not compatible with a particular operating system. This could hinder the ability to use it successfully, so it is essential to check the compatibility information provided by the manufacturer before making a purchase.
• Device Compatibility: The intended application ought to be taken into account when choosing a converter. One should think about the sort of device that will be connected through the serial port, whether it is a legacy printer, a GPS gadget, an implantable pacemaker programmer, or another device. To guarantee successful interaction between the computer and the serial-connected device, the converter selected must be appropriate for the kind of device.
• Maximum Data Transfer Speed: Each connected device's data transfer rate or baud rate must be considered; therefore, one must ensure the selected converter can match the required data transfer rate, which can range anywhere from 1200 bps to more than 230 Kbps. Such high-speed devices include barcode scanners, mouse peripherals, and communications equipment. A serial device with high data transfer rates won't work well with a converter that can't keep up with the required speed and vice versa.
• Environment and Portability Requirements: For applications requiring mobility, such as field installations or space-limited setups, one must consider whether the device will be used in a fixed location or carried around. If portability is important, look for compact converters that are easy to transport and connect on the go.
• Converter's Build and Reliability: When selecting a converter, it is important to consider the build quality and reliability of the device, particularly for frequent or prolonged use. Choosing a reliable and durable converter can help minimize issues and ensure stable connections over time.

Usb to serial port converter Q & A

Q1 How does a USB to serial port converter work?

A1 The converter works by taking the digital USB signals and converting them into the RS-232 serial standard. It does this through a chip that handles the signal changes and a physical plug that connects to each type.

Q2 What are two common applications for USB to serial converters?

A2 Connecting devices like mice, modems, and printers to ports. Extending a cable so one can reach a distant point. Adapting a newer USB plug to an older serial port.

Q3 How can one tell if a USB to serial converter is reliable?

A3 If the converter works easily with popular operating systems, it is a sign of trust. Good converters will install automatically without needing extra drivers.

Q4 How can buyers be sure a USB to serial port converter will work with their device?

A4 Customers need to check the device's manual or specs to see what kind of USB converter it needs. They also double-check that the converter's plug type and protocol matches what the device uses.