Port Authority USB Serial DB9 Adapter Drivers: A Guide for Programmers and Hobbyists

Supporting data transfer rates up to 921.6 Kbps, the USB to serial cable is a convenient and cost-saving solution for providing serial connectivity to devices such as point-of-sale terminals, serial modems, industrial equipment, and a wide variety of other RS232 peripherals.

port authority usb serial db9 adapter drivers

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Older applications that use serial communication often use legacy hardware addresses that do not work with PCI, PCIe, or USB to Serial products. We recommend contacting the software provider/support team to check if this is the case.

You can check multiple ports at the same time by opening multiple sessions, putting the loopback adapter on one port, and trying to type into each session. When you can see what you are typing, you know that the COM port is working and you can see which port number the physical serial port is. Close the window for the port that you just tested to speed up the testing of the remaining serial ports.

Works with Microsoft Windows (up to Windows 11) and macOS X (up to Big Sur 11.6 and Monterey 12.0.1), and includes Windows line monitor and data trace software. The unit supports both 32-bit and 64-bit systems and has continuously updated drivers available for download on the unit's Technical Support page.

The USB to Serial RS-232 Adapter provides one RS-232 Serial (DB-9 male) connector via one standard USB port at a data transfer rate of up to 230Kbps. You can instantly enjoy connectivity with modem, PDA, POS, or other serial devices on your PC or Mac without the hassle of opening your computer case. It provides a quick, simple, and cost-effective solution and is ideal for various communication and automation applications. This makes the USB interface transparent to serial peripherals, allowing them to easily interface with USB computers and eliminates the setup hassle found with traditional serial port connections. This device also supports energy saving suspend and resume operations.

This converter is powered by the USB port but can optionally be powered by an external 5VDC supply. An external power supply is usually only required if you connect serial devices which draw a high current or if you connect this converter via a USB hub.

A multi-port USB-RS232 converter is an ideal way of creating multiple RS232 COM ports in any computer using Windows, Mac or Linux. The created COM ports can be found in Windows Device Manager and can be used as if they were built-in serial COM ports. Each COM port can be used individually or simultaneously.

When creating multiple RS232 COM ports it is very important that you are using a good quality USB-RS232 converter with compatible drivers for the operating system you plan to use it on. If you are using a low-cost converter you risk problems such as computer freeze, DLL errors or simply difficulties in communicating with the device you connect to the COM ports. Therefore we usually recommend a converter with a FTDI chipset, since this processor has shown to be compatible with most devices, provides easy installation of the drivers and has an overall good performance without computer freezes or other problems. Other examples of good USB-RS232 chipsets are from Moschip or SilLabs.

Spending a few extra dollars on a good converter can save you much headache and time. Another important step to successful serial communication is proper driver installation. When installing the USB-RS232 adapter drivers you need to pay attention to the driver installation instructions. If you carefully follow the installation instructions you will often save time and frustrations, and have your converter up and running in a few minutes.

Easily add an RS-232 9-pin serial port to any computer with our PL2303-DB9 USB to Serial Adapter!This adapter will let you connect older serial devices to modern computers, for terminal services, data transferring, remote control, and programming. Supports baud rates from 75bps to 12Mbps, multiple stop bit and parity types.

Plugable's USB to Serial Adapter features Prolific's PL-2303HX Rev D chip for the best combination of support and performance with a wide range of RS-232 serial devices. Drivers are built-into Windows 11, 10, 8.x, 7, and most Linux distributions, drivers are available for Windows XP, Vista, and macOS.

This adapter replaces a legacy built-in or PCI serial port and features a fixed male port with screw in connection. For connecting devices that also have a male connector an inexpensive DB9 coupler or standard serial cable can be purchased separately.

Works with devices with RS-232 serial ports such as other PCs with RS-232 ports, Bluetooth serial adapters, telescopes, amateur radio gear, GPS receivers, routers, firewalls, modems, plotters, embedded character displays, scan tools, sonar units, embedded boards and many others. Specific devices include: Garmin eTrex GPS, Seiko Label Printer, iRobot Create, Cisco products with serial consoles, US Robotics Modems, NexStar telescopes, Equus Scan Tools, Uniden Hand Held Scanners, etc. Works with software like: HyperTerminal, TeraTerm, WinDBG, all open source serial software on Linux, etc.

We use only genuine Prolific serial chipsets in our adapter. Some inexpensive serial adapters use cloned Prolific serial chipsets that will not work with the latest Prolific drivers, both those available for download and the drivers embedded in Windows. Because we only use genuine Prolific chips, our adapter is always compatible with the latest drivers from Prolific.

Following the installation instructions provided by the manufacturer of your serial devices, install any needed software or drivers. Connect the serial device to the adapter, and make any needed settings, such as COM port, baud rate, flow control, stop bits, etc.

The Plugable USB serial adapter allows you to connect legacy devices that use RS232 serial communications to computers that do not have a serial port. Although this usually works well, a number of problems can crop up because many of the devices people want to connect are older devices with various issues. A frequent problem is that the software that is necessary to connect to the device does not work under modern operating systems such as Windows 7 or above. Other problems can include using an improper cable, incorrect port settings, or a basic incompatibility between the Plugable USB serial adapter and the device it is being connected to.

In Windows, serial communications proceed through a COM port that is assigned by Windows when the USB serial adapter is plugged in. You can find out this COM port by opening Device Manager, going to Ports (COM & LTPT) and looking for Prolific USB-to_Serial Comm Port (COM#). The # symbol represents the port number of the COM port assigned by Windows. This port must be set correctly in whatever application is trying to communicate through that port.

We can directly write to the serial device from bash by redirecting the output of the 'echo' command to the serial device. First we need to set the serial port speed and then send the text "helloworld" to the serial device:

Most permission denied error messages can be resolved by adding your user account to the 'dialout' group or the group with control of the serial port. We can check the group ownership of the port with the following:

This is most often caused by incorrect baud rate settings on either the computer or device. Most serial devices like network routers and switches will have either a sticker with the serial port settings, or these can be found in the user manual for the device. For device with additional settings minicom may prove to be the easiest to configure.

I will be moving from PC to Mac, but will need to run a Windows application that uses a serial port, using boot camp. Would I be right in thinking I would need to install this adapter under Windows using a Windows driver?

Loaded it all up fine, however my main purpose was that so I can telnet to devices on the serial port.My question is running the telnet what would I put after the telnet command to identify the port,

I am using a mac. Wine is a Windows port making it possible to run Windows applications on Mac or Linux. It can use the Mac Hardware such as the adapter and forward it to the Windows application. Nonetheless i found my answer already but thanks anyway

Hi Doug,If you have the Plugable adapter, the latest driver for OS X is properly signed and there is no need to turn off SIP in order to install it. If you are having problems getting it installed, please contact us at support@plugable.com and we can help.

B): Try plugging the adapter into another USB port. The adapter should be detected and you should be automatically prompted to install the drivers. If the problem persists, plug the adapter into the USB port of another computer to verify its functionality.

Our USB to Serial Adapter fully supports Windows 11, Windows 10, Windows 8, Windows 7. Utilizing the Newest FTDI Chip Technology allowing to be upwards compatible with Newer Operating Systems. Replacing your old USB to Serial Adapter with our new USB to serial adapter should be completely seamless. You can plug our adapter in and click update drivers from Windows and it will automatically download the drivers directly from Microsoft. The Drivers are fully certified.

Looking for a USB to Serial adapter? This is a great price and amazing support. This adapter has been fully tested with Windows 11 and works flawlessly. Do not hesitate to purchase it and use it in your new setup. We back this support claim up with a 30 day guarantee!

For most of these operating systems two types of driver are available: Virtual COM Port (VCP) drivers and direct (D2XX) drivers. The VCP driver emulates a standard PC serial port such that the USB device may be communicated with as a standard RS232 device. The D2XX driver allows direct access to a USB device via a DLL interface. 2ff7e9595c