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USB Extender
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Juha:
Hello,

So I have been googling the past 2 days trying to find an IC that would extend USB 2.0 up to tens of meters. So far I have not had much luck, the only thing I may have found is CH317 and cant find much info about that either. Im probably using the wrong search terms and even typing that wrong...

So the consept is to use usb camera modules for some machine vision stuff but I need to figure out the long distances first. I would prefer to have something that would see the camera as is, so ideally it would be like plugging the module directly to a usb port.

There are extenders in the market but I would prefer to at least have the possibility to do something on my own if needed, thus the need for an IC.

Has anyone done anything like this before? Anyone have any hints what I am looking for?

EDIT:
So found another chinese one, Norelsys NS1021. Is this application really so niche that there really isnt a market for IC's. Maybe I will buy an extender and pry it open (just to find one of the above chinese chips inside :D).

Thanks in advance
thm_w:
As you said, better off buying an extender, see how it works, cost is under $20. I can't see how integrating an IC makes more sense, at least initially.

some of these might be relevant:
https://www.epanorama.net/blog/2018/11/19/usb-to-rj45-adapter-teardown/
https://fccid.io/PPNM2-100/Internal-Photos/Internal-Photos-156638?__cf_chl_jschl_tk__=pmd_S81JLAL0tTI_XMglXU.rcQoD2Jn60P1fviP32Wcef4s-1634765938-0-gqNtZGzNAmWjcnBszQc9
https://fccid.io/UYYEXTWUSB4PS
https://fccid.io/RR-ATN-UCE32100
Benta:
The USB 1.1 and 2.0 only support 5 m of cable, 3.0 is more like 3 m.
You need switche(s) or even router(s) for every 3/5 m to be compliant.
Why don't you convert to something that works well with longer cables? Eg, USB -> Ethernet -> USB. Converters cost a few Euro.

thm_w:

--- Quote from: Benta on October 20, 2021, 11:16:54 pm ---The USB 1.1 and 2.0 only support 5 m of cable, 3.0 is more like 3 m.
You need switche(s) or even router(s) for every 3/5 m to be compliant.
Why don't you convert to something that works well with longer cables? Eg, USB -> Ethernet -> USB. Converters cost a few Euro.

--- End quote ---

Thats presumably what the OP is talking about already, NS1021 supports CAT5, coax, etc.
amyk:
How long do you need, exactly?
https://superuser.com/questions/64744/maximum-length-of-a-usb-cable
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