Isochronous USB data transfer?


#1

I am using the USB-Serial Converter to connect a touchscreen which uses 9-pin serial for the “mouse” connection. It works fine directly connected.

I am intending to locate the screen remotely, using a VGA-Cat5 extender. I am looking into using a USB-Cat5 extender, but the manufacturer has the following warnings:

  1. When Using with Video over USB Products (Such as web cams and display adapters) - Check with the manufacturer to find out if the video device uses Isochronous USB data transfer. If it does, you will need to use a non-Cat5 USB extender product.

  2. When Using with a Touchscreen Monitor - Confirm with the manufacturer that a USB over Cat5 extender can be used with their touchscreen monitor.

Does the USB-Serial Converter use this transfer mode? Have you worked with any particular extenders before? I’m also looking into KVM extenders which have USB ports for keyboard and mouse, would the USB-Serial converter work through those types of ports?


#2

Hi Rob,

Thanks for posting your question here to ask ahead about our USB to Serial cable and it’s USB transfer types. To my knowledge the USB to Serial cable uses Interrupt and Bulk transfers so Isochronous transfers shouldn’t be an issue.

However, there’s a good chance that you will still run into compatibility problems due to the multiple levels of translation. It would be a safer bet to try a USB extension cable like this:

http://plugable.com/products/USB2-10M

Sorry I don’t have more specific information about what to expect with the Cat 5 extender.

I hope this helps, let me know how it goes!

Thanks,
Jerome.

Plugable Technologies


#3

If you have a long way to go, I found this product (although I haven’t tested it yet). http://www.icron.com/products/icron-b…


#4