This PRO version mini USB to Serial adapter is similar to our STD mini adapter however with some major exceptions: this adapter is designed around the popular and highly reliable FT232RL chip from FTDI which makes this adapter superior to the Standard version. Furthermore this adapter has indication LED lights to show TX and RX activity.
It is perfect for mobile applications and devices as the small size makes it easy to store it in a laptop bag or a pocket, it is also ideal simply if you want a convenient and small adapter which makes it easy to add a serial port to any desktop or laptop, for general office, commercial and industrial use.

After installing the included drivers the serial port is automatically configured as an additional COM port which shows up in your operating system's Device Manager. This COM port can be accessed and used as if it was a standard built-in COM port.
The FT232RL chip and drivers also allows the user to adjust several port settings such as baud rate, data bits, flow control, COM port number and even latency times and more.

This USB to serial adapter is compatible with most serial devices and we have successfully tested it with several GPS and PDA devices (Garmin, Mallagan, Palm), modems, printers, scanners, digital cameras and office equipment.

The adapter's Plug and Play feature allows easy installation and requires no IRQ, DMA, or I/O port resources which means that more devices can be attached to your system without the hassle of device and resource conflicts.

As all our high performance USB to serial adapters this adapter is fully compatible with all versions of Windows 32/64-bit and most recent versions of Linux and Mac.

Overall features

Port powered USB to serial adapter
Indication LED lights for TX and RX activity
Hexagonal nut stand-offs for connecting thumbscrews
USB Plug and Play
Automatic handshake support
Wake-up and Intelligent Power Management
Current consumption less than 100mA
Auto detection of data speed
Built-in static and surge protection up to 600W

	Download drivers Datasheet Compare Products Tech Support

SPECIFICATIONS
Part number	XS822
Operating system	Windows 2000, XP 32/64-bit, Vista 32/64-bit, Server 2003/8 32/64-bit, Win 7 32/64-bit, Windows 8 32/64-bit, Linux, Mac, CE
Processor	FT232RL
RS232 Interface	RS232 DB9 Male
RS232 output power	~5.7VDC
USB interface	Standard Type A Male
Indication LEDs	TX, RX and Power
Ports	1-port
Signals	TX, RX, RTS, CTS, DTR, DSR, RI and GND
Power on pin 9	No
Baud rate	300-921.600bps
Parity	None, Odd, Even, Mark, Space
Data Bits	7, 8
Stop Bits	1, 2
Flow Control	None, Xon/Xoff, Hardware
ESD Protection	600W surge protection, 15KV static electricity protection
Transmission Rate	10/100Mbps Auto-detection
Compliance	USB1.1,2.0,3.0, EIA/TIA RS-232
Working temp	-20C to 60C

Price: $27.50

Part: XS882
In stock

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Reviews for this product

Displaying 1 to 6 (of 6 reviews)

Date Added: 01/24/2013 by Robert Fries

5 of 5 Stars

A relaiable USB adaptor for my Windows 8 64 bit PC. This one works great. Good price and easy instal...

Date Added: 09/05/2011 by Dave Ketner

5 of 5 Stars

Pros: small and mobile, easy to install Cons: would be nice if the USB extension cable was longer ...

Date Added: 08/27/2011 by James Thompson

5 of 5 Stars

works fine. used to pay double as much for an adapter that works with windows 7. thanks for a good p...

Date Added: 08/22/2011 by Jeff Gillian

5 of 5 Stars

Thanks a lot,..works perfectly with with windows 7 62bit. Easy to install drivers. Regret I wasted t...

Date Added: 07/20/2011 by Andrew Pickett

4 of 5 Stars

Got this adapter for an older computer using XP but ended up using it with Windows 7. Works fine wit...

Date Added: 05/02/2011 by Jamie Sanders

5 of 5 Stars

The product works fine, overall no problems installing drivers even on windows 7. Used it for about ...

Displaying 1 to 6 (of 6 reviews)

Quick Tip!

Generally about the USB to Serial Adapter

This USB to Serial adapter is as mentioned earlier ideal for laptops and other mobile devices, however it is also a good all-round USB to Serial adapter for most other devices where you need a simple, reliable, high performance USB to serial adapter. The drivers and chipset for this USB to Serial adapter is made by FTDI a British company who makes very reliable and good all-round products for many consumer data products, which can be used for professional applications for example industrial, laboratory or in some cases even mission critical applications.
If you need a reliable USB to serial adapter for either RS232, RS485 or RS422 we recommend using an adapter with a FTDI chip and drivers such as our Xetatronix Pro grade line of USB to Serial adapter units. These USB to Serial adapters are made with drivers and chipset from FTDI which offer highly reliable and high performance product for almost and serial application.
The drivers for the low-cost Prolific (Taiwan) USB to serial adapter usually works fine with older operating systems such as Windows 2000 and XP however we have seen several problems with newer operating systems.

Driver installation.

Installing a USB to serial adapter is very easy regardless if you use Windows, Linux or Mac. First we recommend that you download the latest drivers from our download section. Unzip the zip file and place the folder with the drivers on your desktop. In this folder are drivers for most operating systems, an installation guide and troubleshooting tools and guides. Now connect your USB to serial adapter. As soon as the USB to serial adapter is connected Windows will automatically detect the adapter and the Hardware Installation Wizard should start. Point the Hardware Installer to the folder with the drivers you placed on your desktop and click "OK". It is important that you point the installer to the correct folder, which depends on what operating system you are using, otherwise your operating system cannot install the drivers or in some cases it will actually install the wrong drivers and then your USB to serial adapter will not work.

After installing the drivers for the FTDI USB to serial adapter a virtual COM port will be created in your operating system's Device Manager. The COM port can be accessed and used as if it was a standard built-in COM port. Notice however as with all USB to serial adapter units that there usually is a latency (data delays) when communicating with devices. If you wish to avoid these data latencies we recommend using a regular RS232 serial port, for example such as a serial RS232 PCI card which can be installed in most desktops. This is however usually only a problem if your serial device is very sensitive in regards to timing issues.

usb serial adapter in device manager

Example of a virtual COM port in Windows Device Manager

Be aware that most USB to serial adapter units assign COM port numbers to the USB to serial adapter depending on which COM port number is available in the system. Usually the next available COM port number is assigned to the USB to serial adapter. If you disconnect the USB to serial adapter and after a while re-connect it again it may or may not be assigned the same COM port number, so always check in your operating system's Device Manager to see what COM port number is has been assigned. USB to serial adapter units with COM port retention exists, these will be assigned the same COM port number each time it is connected.

Troubleshooting a USB to Serial adapter.

Troubleshooting a USB to serial adapter is actually very easy. If you are expering any problems with communicating with your serial device when using a USB to serial adapter we recommend making a loop-back test. Making a loop-back test is very simple and it verifies if the adapter is working or not. To make a loop-back test you simply loop the TX and RX signals at the RS232 DB9 connector as shown on the image below.

loop-back test plug

After you have looped the TX and RX signals you use a terminal program to send some characters to the (virtual) COM port. You can for example use AccessPort for this. If the USB to serial adapter is working properly the characters will then be received by the adapter on the RX wire and sent back to you by the TX wire and received back in your terminal software. Below is a screenshot of the loop-back test with AccessPort. usb serial adapter test

Error conditions.

Even a FTDI based USB to serial adapter is one of the most reliable and stable serial adapters available several error conditions can emerge. Here are the most common problems explained:

USB Device Not Recognized error.

This error usually happens when the USB to serial adapter is plugged in to the USB port and Windows pops up with this "USB Device Not Recognized" error message. When you open Device Manager you will also see a "Unknown Device" listed under USB devices.
There can be several reasons for this error. Often the reason is because the drivers were unsuccessfully installed, not installed at all or incorrect drivers installed. If one of these is the reason simply make sure that the correct drivers are installed successfully. You might also in some cases need to uninstall the drivers you already installed, reboot your computer and re-install the drivers.
Other reasons causing this error sometimes are problems with Windows host controller hardware or additional system hardware or configurations that may change the timing. In this case a quick fix might simply be to plug in the USB to serial adapter to a different USB port.
Finally another reason for this error can be that the USB to serial adapter has a defect and needs to be repalced.
You can find a more detailed explanation and solutions to the USB device not recognized error in our Tech Support section.

This Device Cannot Start (Code 10) error.

The Code 10 error is somewhat related to the 'USB device not recognized' error. In Device Manager you will see a yellow exclamation mark next to the device which is not working. This error often emerges with low-cost USB to serial adapter units such as adapters made with the low-cost Prolific chip and drivers. The reason is usually more or less incompatible drivers or adapter hardware. This is the reason why we always recommend using a FTDI based USB to serial adapter for all newer operating systems. For older operating systems a Prolific based UAB to serial adapter might work. You can find more details about how to fix the Code 10 error in our Tec Support section.

Unable to communicate with your serial device.

If the drivers has been installed successfully and the virtual COM port is listed in your operating systems Device Manager but you are unable to communicate with your serial device, you should make the loop-back test as described above. If the loop-back test is unsuccessfull then check that the COM port number is matching the settings in AccessPort. If its still not wokring we may assume that the USB to serial adapter has a defect and needs to be replaced.
If you successfully can make the loop-back test with AccessPort but can't get any communication with your serial device then you may want to check if your serial device needa any special handshake signals to work. The FTDI based USB to serial adapter has all handshake signals available but you may need to enable them in your software if your serial device requires this.

Timeout errors.

If you are getting timeout errors when using a USB to serial adapter with your serial device or serial software you may want to change some of the port settings for the virtual USB to serial port in you operating system's Device Manager. You can do that by opening your operating system's Device Manager, right-ckick on the virtual USB to serial COM port under Ports (COM and LTP), then chose "Properties" from the menu list. Click on the "Port Settings" tab and when clicking the "Advanced" button you will get the Advanced Settings window as shown below:

ftdi usb serial adapter settings

Here you can change several settings. If you are haveing timing issues then you may try and adjust the BM Options, Latency Timer to a lower number.

Garbeled text

Sometimes communication to your serial device is established and everything seems to be ready to go and it actually does communicate however not corrrectly. You might be getting error messages in your serial device or software. If this happens you should make sure that the baud rate of the PC software, the USB to serial adapter and/or your serial device and software are matching. All data settings must match. Usually the FTDI based USB to serial adapter will auto detect these setings, however not always in some cases.

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