Notice that the device will show up as being on the same COM port that it was before (i.e., COM5), but will show up on the new port if you close the Device Manager and open it again. Pull down the scrollbar on the bottom, left side and select COM 1, 2, 3 or 4 (NOTE: Choose one that does not say "in use" next to it).Right click on the "Prolific USB to Serial Port" and click on Properties.How do I change the COM port on my USB to Serial adapter? If the adapter is installed on COM5, a device with such a limitation will not work until the COM port is reassigned to COM1 - COM4. would not work with a USB to Serial adapter when everything appears to have installed fine is that some devices will only scan a limited number of COM ports.įor instance, it is very common for a PDA to have a limitation of scanning the first four (or sometimes two) COM ports. The most common reason that a device such as a PDA, GPS, cell phone, etc. Troubleshooting The driver is installed properly, but the device is not working: If the device is installed properly, you will see "Prolific USB to Serial Com Port.".Click on the plus sign (+) next to "Ports.".Start -> Control Panel -> Hardware and Sound -> Device Manager.This adapter is the easiest way to add a serial port to your computer.Ĭonnectors: USB Type A Male, 9-pin Serial Male.
Package Contents USB to Serial adapter Driver CD. Power: Bus Powered (no external power required) Other Technical Info: Supports RS232 serial interface, USB 1.1 compliant, Works with USB 1.1 & 2.0 ports, USB suspend condition, Supports 500 Kbps transfer rate, Advanced 16 Bit processor for USB transaction and control data processing, PL 2303HX Chipset. Connectors: USB Type A Male, 9-pin Serial Male. System Requirements: Windows 98 SE, ME, 2000, XP, Vista 32, Vista 64, 7 & 8 (with latest driver download), Linux, Mac OS X, Pentium 233 MHz or faster, 64 MB RAM or more, Available USB Port.
Many PDAs, digital cameras, GPS units, barcode scanners, and other equipment require a serial connection and many newer computers don’t have serial ports. This adapter is the easiest way to add a serial port to your computer.
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