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neuronaut2

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Friday, June 17th 2011, 10:48pm

Powered USB hub solution?

Hi there,

I know I'm supposed to keep a port open for my TI, but I have a new MacBook Pro and I'm running out of power on the other USB port with the external (powered) drives, usb powered controllers, etc.... this has to be a common issue.

Can anyone suggest a high-end usb hub that will actually put out consistent power? I used the one Apple recommended - the belkin 7-port powered hub (http://www.amazon.com/7-PORT-Desktop-USB-Hub-ps/dp/B002K3Y2MM)

At the time Apple was selling it from their site - so I bought it from them. Looks like they don't sell it anymore.

Anyway, it's powered and not supplying enough power. I also have 2 of these - http://www.belkin.com/IWCatProductPage.process?Product_Id=158910 and they don't work either... yes, they're powered hubs....

I've been looking at Digi.com hubs because they seem to be taking this seriously... but their best option doesn't mention working with macs... I have an email out to them asking about all this... no response yet..

http://www.google.com/products/catalog?q=hubport+digi+7-port&hl=en&safe=off&client=firefox-a&cid=4583784586062746525&os=tech-specs

I am willing to spend the money - I want 4 to 7 USB ports in a portable solution with GOOD power and throughput.

:?: Has anyone found a good solution?

(On a different tip all together - the search on this forum doesn't seem to work and I wasn't able to search for a thread about this.)

Ruari

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Friday, June 17th 2011, 11:03pm

I use this one , I've had it about 6 months or so & it's working fine.

cwichura

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Thursday, June 23rd 2011, 2:46pm

USB 2.0 hubs have a dirty little secret. Most of them use a chipset based on a single translation design, as these chipsets are cheaper. The translation handler affects how the USB hub deals with USB 1.x devices that are connected to it. And since the Virus is a USB 1.1 device, this is important.

With a single translation based chipset, all USB 1.x devices on the hub share a single translation channel. Thus, if you also have things like a keyboard or mouse connected to the hub (which are almost always still USB 1.x devices as well), they will share a single 12mbit USB 1.x channel back to the host machine with your Virus. Many music controllers (e.g., Akai MPD series, etc.) are also USB 1.x devices. Sharing a single USB 1.x channel can result in bandwidth issues, sync issues, etc. You want to avoid single translation chipsets.

Multi translation chipset designs give each USB 1.x device its own 1.x<->2 translation channel. Thus, each device gets its own dedicated 12mbit USB 1.x channel to play with. You no longer have to worry about conflict between devices, and USB behavior for things that are timing and/or bandwidth sensitive will be MUCH more stable.

But as I said, most USB 2 hubs use a single transaction chipset to save on cost. And nobody publishes this in their tech specs (even the folks making hubs based on a multi transaction chipset it seems). Without calling and consulting with tech support, you usually have no way to know. That said, one hub that is known to have a multi transaction chipset and which I personally own 4 or 5 of and have had no issues with (not used with the Virus, but with other audio interfaces) is the Belkin F5U237v1 7-port USB2 hub. I'm not sure if this is the same as the Apple hub you mentioned or not (did not follow your link, sorry). You mention power problems, which I've never had, as I always use the included power supply to drive the hub.

MusicMaven

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Saturday, June 25th 2011, 2:12am

On the recommendation of the forum moderator, Marc, I tried inserting a hub between my TI and my Core i7 iMac. However, after doing so, the diagnostic window in the Virus Control editor appears with a message telling me to remove the hub. All the other tabs are grayed out thus making the Virus Control software inoperable.

Is there any way to override this diagnostic window?

I'm running the latest version of the Virus OS (4.5.0.16).

djantimatter

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Saturday, June 25th 2011, 9:45pm

Uhm, The virus is a USB 2.0 device. This has been covered several times already. Please check your facts.

Ruari

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Saturday, June 25th 2011, 10:05pm

Quoted from "djantimatter"

Uhm, The virus is a USB 2.0 device. This has been covered several times already. Please check your facts.
From page 6 of the set-up guide:

Quoted

As a result, if you use a USB2 hub, the Virus TI should be the only USB1 device
connected to this hub.
:wacko:

MusicMaven

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Wednesday, June 29th 2011, 2:18pm

Quoted from "djantimatter"

Uhm, The virus is a USB 2.0 device. This has been covered several times already. Please check your facts.
You sound like a dumbass when you don't know what you are talking about. Please leave this discussion to those of us who are trying to resolve our issues with the TI (which is in fact a USB1 device).

djantimatter

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Saturday, July 2nd 2011, 12:06pm

Quoted from "MusicMaven"

Quoted from "djantimatter"

Uhm, The virus is a USB 2.0 device. This has been covered several times already. Please check your facts.
You sound like a dumbass when you don't know what you are talking about. Please leave this discussion to those of us who are trying to resolve our issues with the TI (which is in fact a USB1 device).


Then why has Marc posted on this forum several times that the TI is 2.0??

http://virus.info/forum/index.php?page=Thread&threadID=259&pageNo=2

Educate yourself....

MusicMaven

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Sunday, July 3rd 2011, 6:03am

Quoted from "djantimatter"

Then why has Marc posted on this forum several times that the TI is 2.0??

http://virus.info/forum/index.php?page=T…ID=259&pageNo=2

Educate yourself....
Why is it that people who don't know what they are talking about persist in making fools of themselves? Launch the System Profiler app on your Mac, open the USB section, and read what it says for your Virus TI connection speed. The TI, a USB1 device, operates at 12 megabits per second. (USB2 operates at 480 Mbps.)

Can we move on now?

This post has been edited 1 times, last edit by "MusicMaven" (Jul 4th 2011, 8:03am)

djantimatter

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Tuesday, July 19th 2011, 10:20pm

USB 1.0 ports haven't been manufactured since at least 2002 at least since the USb 2.0 Standard was introduced in 2000.

From a hardware standpoint the port on the TI is 2.0 however it runs at 1.0 speed. I even had a look at the port chipset on my Pølar myself when I disassembled it earlier this year to fix a failed pitch bend wheel and the port is indeed 2.0.

So in essence the TI could run at much higher speeds but its firmware disallows it.









Quoted from "MusicMaven"

Quoted from "djantimatter"

Then why has Marc posted on this forum several times that the TI is 2.0??

http://virus.info/forum/index.php?page=T…ID=259&pageNo=2

Educate yourself....
Why is it that people who don't know what they are talking about persist in making fools of themselves? Launch the System Profiler app on your Mac, open the USB section, and read what it says for your Virus TI connection speed. The TI, a USB1 device, operates at 12 megabits per second. (USB2 operates at 480 Mbps.)

Can we move on now?

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