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Author Topic: USB going optical  (Read 26530 times)
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Jud
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« Reply #15 on: June 28, 2013, 03:07:14 pm »


What I wonder though is how this will/can work on low powered USB ports. I do this by heart :
150mA is normal and I don't think it will be sufficient for this application.
600mA is "extra" and if you'd ask me, designed for charging devices - even when the PC is shut off (but power switch still on). This should be sufficient for this application or otherwise nothing works.

But it is the very first I shut down (BIOS) because no way I will allow 600mA spikes by any by accident requiering device.

If you understand this, you also understand why in my view such applications (also USB powered disks) never work (out). Only "no power" is OK. Like the NOS1. But now there's a normal linear supply in there and regulated such that (hopefully) it is harmless. And STILL any optical to electrical conversion implies current spikes we don't want.

Hey, it is all not soo easy ..
haha
Peter


For what little information it may provide (not much), this from the specs for the cable:

Quote
•Wattage Provided: 2.25 W (USB 3 mode), 0.5 W (USB 2 mode)

Edit: I suppose the additional wattage is needed for USB 3 because the higher transfer rate requires more push to make the light go faster.  ;-)
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AlainGr
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« Reply #16 on: June 28, 2013, 03:14:09 pm »

I don't know where I took that a device could be powered by the Corning optical USB cable... It's kind of confusing since they mention in their FAQs that as long as a peripheral does not require more than 2.25 watts, it will power that peripheral, but I guess that 2.25 watts reduces the choices...

Alain

Edit: 2.25 watts (thanks Jud). I will take my morning coffee now, maybe it will help me to read better Wink
Edit 2: "to make the light go faster" Ha ! Happy

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PeterSt
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« Reply #17 on: June 28, 2013, 04:34:42 pm »

2.25 Watt eh ?
I don't see a way that this will work.
Again I didn't sort out a single thing. If the 2.25W is provided on the PC side, ok (but with external supply). But what about the other side ? That should be devices made for the job. This isn't "fair".

For fun :
I think his would take/need 0.45A and I assume continuous load.
(Adnaco brick supply shows 0.5A).
For comparison (again by heart), the USB interface of the NOS1 uses 20mA (0.02A).

Hmm ...
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A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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AlainGr
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« Reply #18 on: June 28, 2013, 05:04:36 pm »

If I recall this correctly, to know about the amperage, we need to know the voltage and the wattage: dividing the wattage (2.25w) by the voltage (5v) should then be .45 amps ?

V * A = W
W / V = A
W / A = V

As long as it is simple, I understand Wink

Alain

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PeterSt
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« Reply #19 on: June 28, 2013, 05:42:13 pm »

Alain, you talk like I made a mistake ?

So yes, 2.25 / 5 = 0.45.

It could depend a bit on whether we're using 5V indeed, because it could be 3.3V. So, USB standard is 5V but take your NOS1 and 3.3V would be sufficient. In that case 2.25 / 3.3 = 0.68.

But maybe the mistakes are all over, because that text I think spoke about provide 2.25 Watts. So, it's "in there" as a max maybe and don't ask me whether this is needed for the conversion from optical to electrical and whether the receiving end also has spare to provide a 5V of any normal kind.
Nah see, this is already stupid because now I talk like this whatever 0.45A comes from the sending side, which can't be so.

It all sounds a bit strange, so I better stop guessing.

Peter
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W10-14393.0 - July 17, 2021 (2.11)
XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 14/28 cores in BIOS and set to 10/20 cores via Boot Menu) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/0/*1*/ Q1Factor = *4* / Dev.Buffer = 4096 / ClockRes = *10ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *10.13*  (max 10.13) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = *62* / Nervous Rate = *1* / Cool when Idle = n.a / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / Custom Filtering *Low* (16x) / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^3
A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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AlainGr
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« Reply #20 on: June 28, 2013, 06:07:32 pm »

Alain, you talk like I made a mistake ?

So yes, 2.25 / 5 = 0.45.
Of course not Grin Many years ago, I did not know the relation between the wattage, the power and the output Happy It was more an explanation for others...

But depending on the cost of a simple optical cable, I would still be interested in trying one... Just for fun of course, as long as I don't have to renegociate my mortgage...

Regards,

Alain

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Jud
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« Reply #21 on: June 28, 2013, 08:30:13 pm »

It all sounds a bit strange, so I better stop guessing.

Peter

Now *there* are wise words for all of us!
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« Reply #22 on: July 03, 2013, 01:09:15 pm »

I wrote to Corning, asking “I would like to know if, as an optical transmitting device, this eliminates the frequency spectrum that USB 3 cables are emitting while transferring ?”.

While they attached a technical paper from Intel about "USB 3.0* Radio Frequency Interference Impact on 2.4 GHz Wireless Devices
(White Paper, April 2012), they also added this:

"We see from Intel’s April 2012 white paper that noise can radiate from the USB 3 peripheral device, the cable, & the PC.  While the transmission in our cable takes place over 2 fibers, our cable also contains 2 copper conductors for power."

I guess this means that there are also copper cables...

Alain
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PeterSt
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« Reply #23 on: July 03, 2013, 03:30:58 pm »

And I guess nothing. Happy
But so much for eliminating noise from the PC ... me thinks.

See ? *something* had to be going on !
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For the Stealth III LPS PC :
W10-14393.0 - July 17, 2021 (2.11)
XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 14/28 cores in BIOS and set to 10/20 cores via Boot Menu) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/0/*1*/ Q1Factor = *4* / Dev.Buffer = 4096 / ClockRes = *10ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *10.13*  (max 10.13) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = *62* / Nervous Rate = *1* / Cool when Idle = n.a / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / Custom Filtering *Low* (16x) / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^3
A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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AlainGr
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« Reply #24 on: July 07, 2013, 03:54:43 pm »

And I guess nothing. Happy
But so much for eliminating noise from the PC ... me thinks.

See ? *something* had to be going on !
Haha, I "guessed" too much the last time Wink

Alain
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