Maximum USB cable length constraints?
Posted: 17 Jun 2015, 18:37
Hey all,
I was wondering if anyone can provide any verified info about the longest USB extension cables that have been successfully used with the Eye Tribe.
For some context, my computer is located across the room from the workstation with my monitor (for various reasons), and so I am unable to use the Eye Tribe when it is plugged directly into my tower. Currently, I have a 30 foot active USB extension cable which I hoped I would be able to use. However, the computer doesn't see the Eye Tribe when plugged into the extension; no USB "ding' for connecting/disconnecting, and no entry in the device list.
What's really strange, though, is that other devices work with the extension cable, such as other input devices or USB flash drives. The extension cable has a separate 5V power supply that can optionally be used, and while it isn't necessary for any of the other devices I have tried to connect, I connected it to see if that was the issue with the Eye Tribe to no avail.
Before people just respond by quoting the USB specification, I'm well aware of the "official" 2m maximum length for cables. However, in practice, lengths up to 10m certainly work for certain things. So does anyone have ideas what the issue might be here? Does the unit have unique requirements that mean it needs a shorter cable than most other USB devices? Or is something else potentially going on?
I was wondering if anyone can provide any verified info about the longest USB extension cables that have been successfully used with the Eye Tribe.
For some context, my computer is located across the room from the workstation with my monitor (for various reasons), and so I am unable to use the Eye Tribe when it is plugged directly into my tower. Currently, I have a 30 foot active USB extension cable which I hoped I would be able to use. However, the computer doesn't see the Eye Tribe when plugged into the extension; no USB "ding' for connecting/disconnecting, and no entry in the device list.
What's really strange, though, is that other devices work with the extension cable, such as other input devices or USB flash drives. The extension cable has a separate 5V power supply that can optionally be used, and while it isn't necessary for any of the other devices I have tried to connect, I connected it to see if that was the issue with the Eye Tribe to no avail.
Before people just respond by quoting the USB specification, I'm well aware of the "official" 2m maximum length for cables. However, in practice, lengths up to 10m certainly work for certain things. So does anyone have ideas what the issue might be here? Does the unit have unique requirements that mean it needs a shorter cable than most other USB devices? Or is something else potentially going on?