[Caper]

  The PS Audio Youtube video on USB ethernet LAN has been taken down!
 
Holy Cow!  Did we start something or what!

Tried to watch that an hour ago, already gone then.

 

[abartels]

stubborn again, but who cares, here you go:
 
http://www.rextron.com/index.php?action=product_detail&p=6&sid=0&id=47
 
saved you $50

 

[hugoboss]

do you think this rextron will benefit from 5volt linear psu and dual head usb cable, or just straight from any usb port and using the bundled switching adaptor is enough

 

[rb2013]

  stubborn again, but who cares, here you go:
 
http://www.rextron.com/index.php?action=product_detail&p=6&sid=0&id=47
 
saved you $50

OK now that's different  - then the Taobao link you provided:
 
This:

 


 Not this:

 

 
Now where can you buy this don't see it on Ebay

 

[abartels]

  do you think this rextron will benefit from 5volt linear psu and dual head usb cable, or just straight from any usb port and using the bundled switching adaptor is enough

 
I realy don't have any clue, normally psu is very important, but for this device, I'm not sure.
I would say: Trial and error, first start with what's in the set, and try comparing later with a better psu

 

[wakka992]

I'm lost...
 
Why should I need a Gigabit one instead of the Usb to ethernet one? My goal is galvanically isolated USB signal, PC to DAC, no router in the middle. won't a usb 2.0 to ethernet extender do the trick?

 

[abartels]

 

  stubborn again, but who cares, here you go:
 
http://www.rextron.com/index.php?action=product_detail&p=6&sid=0&id=47
 
saved you $50

OK now that's different  - then the Taobao link you provided:
 
This:

 


 Not this:

 

 
Now where can you buy this don't see it on Ebay

 
It was a little strange description from Rextron, a range extender has a specific functionality, and those weren't range extenders. You were right Bob.

 

[rb2013]

  I'm lost...
 
Why should I need a Gigabit one instead of the Usb to ethernet one? My goal is galvanically isolated USB signal, PC to DAC, no router in the middle. won't a usb 2.0 to ethernet extender do the trick?

Yes if it can do USB 2.0 Audio Async  and you don't plan on using it on a LAN

 

[rb2013]

   
It was a little strange description from Rextron, a range extender has a specific functionality, and those weren't range extenders. You were right Bob.

The Rextron looks perfect - but where to buy it Taobao - I will try and do a search there

 

[wakka992]

 
Yes if it can do USB 2.0 Audio Async  and you don't plan on using it on a LAN

 
ok, so I need to find a USB 2.0 to Ethernet that support Isochronous at up to 480Mbps. Is  Isochronous the same as Async??

 

[rb2013]

   
ok, so I need to find a USB 2.0 to Ethernet that support Isochronous at up to 480Mbps. Is  Isochronous the same as Async??

Well Isochronous is not needed - just Async - now the the device that PS Audio was refering to obviously does high speed Async as they speak of the remarkable sound difference in the Video - so they have already tried it.
 
 

Question about USB modes--isochronous vs asynchronous

http://arstechnica.com/civis/viewtopic.php?t=819870

Originally posted by stevestrike:
I knew that the max speed of USB is 12MBps. However, I just read that USB operates in one of two modes and not both simultaneously. Only in isochronous mode data transfers at a fixed, guarenteed level of 12Mbps for items like speakers, modems, and monitors.

In asynchronous mode, data transfers occur at 1.5Mbps. Devices like keyboards and mice use this mode.

---

Er, um, well...

There are really four data transfer modes on USB: Isochronous, bulk, interrupt (which is really polled by the host, the devices don't really interrupt), and control. Any USB "endpoint" can run in any of the modes and there can be any reasonable number of endpoints within a device, so it isn't really true that a device can use just one mode. The modes can all be used by different devices at what is made to appear to be the same time (really the different transfers in different modes are interleaved within the USB frames).

The bus can run at 12 Mbps (now considered medium-speed) or 1.5 (low speed); low-speed devices can coexist with medium and do not drag them down to 1.5. 1.5Mb works over longer cable runs. These two bus speeds use isochronous and asynchronous signalling, respectively, but that is a different use of the word "isochronous" from "isochronous transfer mode" (vs. bulk, interrupt, and control).

There is no direct relationship between the bus speed and signalling (isoch. 12 Mbps vs. asynch. 1.5 Mbps) used by a device and the transfer modes it uses (isoch., control, interrupt, bulk), although there are "relationships by implication". e.g. it'd be pretty strange for a low-speed device to use isochronous data transfers, but there's no reason why it couldn't.  

 
 
Any device that supports High Speed USB 2.0 should work - I would like to try one of each.  I will get a RextronUSBX-M200 if I can find one at a reasonable price  So far Amazon, Ebay and Taobao are a no go. They have a video ethernet extender by them on amazon - but not the USB extender.

 

[wakka992]

thanks for the reply. you really are a well of knowledge for computer audio!!
 
I've found a couple of USB to Ethernet that would do the trick, some of the lindy I'll post are USb Isochronous:
 
Lindy 42693 
 
Lindy 42694
 
Lindy 42700 (expensive)
 
http://www.amazon.it/RJ45-cavo-Cat5e-estensione-adattatore/dp/B00K6FBE4U?ie=UTF8&psc=1&redirect=true&ref_=ox_sc_act_title_4&smid=A11IL2PNWYJU7H
 
http://www.amazon.it/LogiLink-USB-Extender-Set-geeignet-schwarz/dp/B00JG59UAG?ie=UTF8&psc=1&redirect=true&ref_=ox_sc_act_title_3&smid=A11IL2PNWYJU7H
 
You confirm than that I don't need the "Medical Grade Ethernet Filter" you posted a couple of pages back??

 

[rb2013]

  thanks for the reply. you really are a well of knowledge for computer audio!!
 
I've found a couple of USB to Ethernet that would do the trick, some of the lindy I'll post are USb Isochronous:
 
Lindy 42693 
 
Lindy 42694
 
Lindy 42700 (expensive)
 
http://www.amazon.it/RJ45-cavo-Cat5e-estensione-adattatore/dp/B00K6FBE4U?ie=UTF8&psc=1&redirect=true&ref_=ox_sc_act_title_4&smid=A11IL2PNWYJU7H
 
http://www.amazon.it/LogiLink-USB-Extender-Set-geeignet-schwarz/dp/B00JG59UAG?ie=UTF8&psc=1&redirect=true&ref_=ox_sc_act_title_3&smid=A11IL2PNWYJU7H
 
You confirm than that I don't need the "Medical Grade Ethernet Filter" you posted a couple of pages back??

Well I will try with and without - since I got it at such a great price - so hold off to see.
 
Here is the Taobao link for the Rextron - will order one through FreeshoppingChina:
https://world.taobao.com/item/524962437081.htm?spm=a312a.7700714.0.0.bH0hRU#detail
 
No that is not the USBX-M200 that's no where to be found...

 

[elms]

anyobody tried usb/ip installed on a router with open-wrt?

 

[rb2013]

  anyobody tried usb/ip installed on a router with open-wrt?

Now you guys are way over my head - actually I was lost on page 44...