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C2G/Cables to Go 26886 1.5ft USB to DB9 Serial RS232 Adapter Cable
- Make sure this fits by entering your model number.
- Convert a DB9 RS232 serial device to USB; great for PDAs, digital cameras, and many other peripherals.
- Perfect for connecting DB9 devices to a PC without serial ports
- USB-A male to DB9 male
- Data transfer rate: Over 230 kbps
- 1 Year Warranty
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From the manufacturer
1.5FT USB To DB9 Serial RS232 Adapter Cable
Convert a DB9 RS232 serial device to USB; great for PDAs, digital cameras, and many other peripheral
Connecting USB with the traditional RS-232 serial port, this adapter connects cellphones, PDAs, digital cameras, modems, or ISDN terminal adapters through your USB port.
Has a data transfer rate of over 230 kbps.
Since the adapter uses no IRQs, there are no IRQ conflicts, and it is ideal for when you need many serial devices attached to your PC. Frees your RS-232 port for other uses.
- Connector 1 : (1) USB-A Male
- Connector 2 : (1) DB9 Male
Connecting USB with the traditional RS-232 serial port, this adapter connects cellphones, PDAs, digital cameras, modems, or ISDN terminal adapters through your USB port. Has a data transfer rate of over 230 kbps. Since the adapter uses no IRQs, there are no IRQ conflicts, and it is ideal for when you need many serial devices attached to your PC. Frees your RS-232 port for other uses.
Learn more about how this C2G product and other C2G products can help you adapt your Chromebook to meet your needs by reading our blog post, Getting the most from your Chromebook, visiting our Chromebook Adapters New Technology page, exploring our Chromebook Solutions page, or checking out our Chromebook Adapters product category.
Legal DisclaimerWarranty does not cover misuse of product.
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Bought KeySpan Tripp-Lite USB-Serial 19HS cable for $10 more at Amazon. Works like a charm. I use PuTTY and Tera Term terminal emulators. See examples of display with Tera Term (which scrambled characters and threw in CR's or LF's, and Putty which only scrambled random characters by displaying the preceding alpha numeric character).
Correct display with KeySpan 19HS adapter is screen shot PuTTY4.
Don't waste your time or money on this product. There is a reason there are 54 used ones for sale for a couple of bucks on Amazons site. If you want a solution that works every time, purchase the Keyspan USA 19HS adapater. It plain works. Sure it costs twice as much, but no excuses. See my review on the Keyspan adapter for connectivity to RS Linx using a Vista or XP machine.
The drivers that come with this product have a large warning on their page warning of cheap knockoff products and they list two "recommended" adapters, neither of which are this one. I would steer clear of this one and pay a bit more to get a product that will work with all devices and applications.
If you measure the static transmit (TX) signal level on the #26886, it is about -6.4 volts. But the TX signal level on older RS232 ports (like my circa 2000 Dell desktop) runs about -10 volts. The higher voltage signal appear to disable the #26886. The stepper motor controller that I was connecting to has a static TX signal level about -9.4 volts. If I attempt to use the #26886 to communicate with the device, it HANGS THE WINDOWS DEVICE DRIVER. Windows still runs, but you can't kill the hung driver and the only way to clear it is by rebooting, (yes, I was using the latest Prolific driver, just downloaded 1-5-2011).
So, the device works nicely to communicate with the newer, lower voltage devices, but for older devices, you'll probably need a different solution. You can check your device RS232 voltage level by measuring it with a voltmeter, pin5 (GND) and pin 3 TX on a DE9 connector.
Works well with my existing Serial port applications on my laptop.
I think it's based on the PL-2303 chipset.
Shows up in device manager under "Ports (COM & LPT)"
as "Prolific USB-to-Serial Comm Port (COM5)" (for example).
The COM port # assigned to this adapter is automatically assigned
and seems to increment for each different USB port it's plugged into.
The COM port can be reassigned as well, but it seems like once one port # is assigned, it shows as "in use" even though the adapter may not be using it anymore.
Port settings can be changed to select 75-128000 bits/sec"
Also - for those who don't read installation manuals (myself included) - it helps to run the install disk first... :)
If you need this type of connectivity, I highly recommend!
All the best,