Product ID: ICUSB232PRO
The ICUSB232PRO 1 ft USB to RS232 Serial DB9 Adapter Cable with COM Retention offers a professional grade solution for connecting legacy or industrial RS232 serial devices to a laptop or desktop computer through USB - eliminating the expense of upgrading serial peripherals for compatibility.
A time-saving and convenient USB/Serial solution, the adapter retains assigned serial COM port values in nonvolatile memory, allowing the same values to automatically be assigned to the adapter serial port if disconnected and reconnected, or disconnected from one USB port and installed in another.
A versatile connectivity solution that bridges legacy serial peripheral devices with newer USB-capable computers, the USB to Serial adapter offers broad operating system compatibility including Windows®, Linux and Mac OS, for easy integration into mixed environments.
Backed by a StarTech.com 2-year warranty and free lifetime technical support.
Warranty Information | Warranty | 2 Years |
---|---|---|
Connector(s) | 1 - Connector Type(s) | USB Type-A (4 pin) USB 2.0 |
DB-9 (9 pin, D-Sub) | ||
Environmental | Operating Temperature | -10°C to 80°C (14°F to 176°F) |
Storage Temperature | -20°C to 100°C (-4°F to 212°F) | |
Humidity | 5~85% RH | |
Hardware | Ports | 1 |
Interface | Serial | |
Bus Type | USB 2.0 | |
Port Style | Cable Adapters | |
Chipset ID | Prolific - PL2303 | |
Packaging Information | Package Height | 1.2 in [30 mm] |
Package Length | 6.9 in [17.5 cm] | |
Shipping (Package) Weight | 3.4 oz [97 g] | |
Package Width | 5.7 in [14.5 cm] | |
Performance | Serial Protocol | RS-232 |
Max Baud Rate | 921.6 Kbps | |
Physical Characteristics | Weight of Product | 1.1 oz [30 g] |
Color | Black | |
Material | Plastic | |
Cable Length | 12.0 in [30.5 cm] | |
Product Length | 15.7 in [40 cm] | |
Product Width | 1.3 in [34 mm] | |
Product Height | 0.6 in [15 mm] | |
Software | OS Compatibility | Windows® PocketPC 2003 / 2000, Windows Mobile 5/6, CE 4.2/5.2, Embedded System 2009, XP Embedded, POS Ready 2009, 98SE, 2000, ME, XP, Vista, 7, 8, 8.1, 10 Windows Server® 2003, 2008 R2, 2012, 2016, 2019 macOS 10.6 to 10.15, 11.0 Linux 2.4.x to 4.19.x LTS Versions only |
Special Notes / Requirements | System and Cable Requirements | PC with an available USB 1.1 (or above) port |
What's in the Box | 1 - Included in Package | USB to Serial Adapter |
Driver CD | ||
Instruction Manual |
Extend the connection between your DB9 serial devices by up to 0.5m
Extend the connection between your DB9 serial devices by up to 1m
Extend the connection between your DB9 serial devices by up to 2m
Extend the connection between your DB9 serial devices by up to 3m
Connect your serial devices, and transfer your files
Connect your serial devices, and transfer your files
Extends the length of your current USB device cable by 3 feet
Extends the length of your current USB device cable by 6 feet
Extends the length of your current USB device cable by 10 feet
We are always ready to assist you with any questions you may have.
Live Chat (opens in new window)We are always ready to assist you with any questions you may have.
Live Chat (opens in new window)Starting in High Sierra 10.13, macOS enforces stricter security policies than previous revisions. As a result of these changes, software packages, like those used in this installation, will need to be allowed within the macOS Security and Privacy settings, immediately after the software has been installed, in order for the device to operate.
To allow the software, follow these steps after you've completed installation on your Mac:
Note: The option to allow the software will be available within the Security & Privacy settings for 30 minutes. If the software is not allowed within that time frame, the software must be reinstalled in order for macOS to grant the opportunity to allow it again.
Some driver installation packages may require you to disable driver signature enforcement in Windows 8, which will allow unsigned driver packages to be installed on your system.
Note: Before you continue, save any open documents and close all open programs.
To disable driver signature enforcement, complete the following:
When your system finishes restarting, complete the following:
When your computer restarts, driver signature enforcement will be disabled and you can install your drivers.
Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again. This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled.
Some driver installation packages may require you to disable driver signature enforcement in Windows 8.1, which will allow unsigned driver packages to be installed on your system.
Note: Before you continue, save any open documents and close all open programs.
To disable driver signature enforcement, complete the following:
When your system finishes restarting, complete the following:
When your computer restarts, driver signature enforcement will be disabled and you can install your drivers.
Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again. This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled.
You may need to disable Driver Signature Enforcement in Windows 10 to use some driver installation packages. When you disable this feature, you can install unsigned driver packages on your computer.
Note: Before you continue, save any open documents and close all of your programs. You will need to restart your computer to disable Driver Signature Enforcement.
To disable Driver Signature Enforcement, complete the following:
After your computer finishes restarting, complete the following:
When your computer finishes restarting, Driver Signature Enforcement will be disabled and you can install the drivers.
Note: When you restart your computer after you install your drivers, driver signature enforcement will be enabled again. This does not prevent your newly installed drivers from working, but does prevent any other unsigned drivers from being installed until driver signature enforcement is disabled.
Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).
To install the driver:
Note: Windows will typically save the files to the Downloads folder that is associated with your user account (for example, C:\Users\your_name\Downloads).
Note: If the Run as Administrator option is not available, you might be attempting to run the installer from within the zipped file. Extract the files using the instructions in Step 2.
Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).
To install the driver:
Note: Windows will typically save the files to the Downloads folder that is associated with your user account (for example, C:\Documents and Settings\your_name\My Documents\Downloads).
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.
When you troubleshoot issues with a serial device, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:
Serial cables
Serial ports
Serial devices
To test your setup components, try the following:
Use the serial cable, serial port, and serial device in another setup to see if the problem is with the components or the setup.
Use a different serial cable, serial port, and serial device in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.
When you test your cables, it is recommended that you do the following:
Test each cable individually.
Use short cables when you are testing.
When you test the serial ports and serial device, it is recommended that you do the following:
Press the Windows key + R, type devmgmt.msc, and press Enter to open Device Manager. Check to see if your device is listed under Ports (COM & LPT).
Make sure that the COM port number is the correct number for the serial device and that the software being used to connect the computer to the serial device uses the correct COM port number.
If the device is listed with an error, follow the instructions on the website to reinstall the drivers.
Note: Some serial devices work only if the COM port number is between a certain range. For example, COM1 to COM4.
Perform a serial loopback test. See this FAQ on how to perform a RS-232 serial loopback test: http://www.startech.com/faq/serial_loopback_test_rs232_windows
To check whether or not an RS-232 serial port is working, perform an RS-232 loopback test by doing the following:
Note: To open a telnet session on the COM port, you need a telnet client like PuTTY or Hyper Terminal. Windows XP comes with Hyper Terminal.
If the loopback test fails, make sure that the serial cable or gender changer that you are using works and that the adapter is in the correct port.
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.
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If the USB device does not work after your computer has been in extended hibernation, it is likely that Windows has automatically turned off the USB Root hub to save power.
The steps below outline how to configure the USB root hub to stay on during hibernation, to prevent this from happening.
Windows 10 / 8
Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.
Windows 7 / Vista
Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.
Windows XP
Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.
To confirm that Windows detects your USB device, complete the following:
Your USB device is listed according to the name of the chipset. To determine the name of the chipset of your USB device, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.
To confirm that the Mac OS detects your USB device, complete the following:
You may need to refresh the System Information page after you plug in your device. To do so, press Command + R with the System Information page open.
Your USB device is listed according to the name of the chipset. To determine the name of the chipset of your USB device, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.
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