Hey everyone,
So after a long period of trial and error I finally managed to get a multi 4G USB dongle set up working. I can successfully plug several USB modems to my PC’s ports, configure docker and a proxy server and get a proxy server for each modem.
My problem now is how to scale, I would like to run 10-30 4G USB modems per 1 PC and I can’t seem to figure out what USB hub to buy. Basically I will need a USB hub that will support 10-30 modems all connected to my 1 PC.
I was thinking about something like that: http://my.orico.cc/goods.php?id=6452
Will that work ? is there something I need to know about connecting multiple modems to a USB hub or will any hub work ?
Thanks a lot !
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- Posts: 9
- Joined: 16 Oct 2019, 10:22
Re: Connecting multiple 4G USB modems to a USB hub
Read:
http://www.draisberghof.de/usb_modeswit ... f=3&t=2881
and google "usb host channel limitations" for EHCI (USB2) and for XHCI (USB3)
http://www.draisberghof.de/usb_modeswit ... f=3&t=2881
and google "usb host channel limitations" for EHCI (USB2) and for XHCI (USB3)
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- Posts: 9
- Joined: 16 Oct 2019, 10:22
Re: Connecting multiple 4G USB modems to a USB hub
Thanks ! I have failed to find this using the search.LOM wrote:Read:
http://www.draisberghof.de/usb_modeswit ... f=3&t=2881
and google "usb host channel limitations" for EHCI (USB2) and for XHCI (USB3)
So, after doing some research, this is my understanding:
1.Figure out the amount of power that each modem consumes, and get a hub that at least supports that amount per port.
2.Figure out the amount of endpoints this hub requires, plus the amount that each modem requires, and make sure that my card supports it. or just split this up to several machine if it doesn't.
I am going to use Raspberry Pi's 4 for this project by the way.
Did I get this all right ? is there any else I should know ?
Re: Connecting multiple 4G USB modems to a USB hub
google "usb host controller endpoint limit" instead and keep in mind that a usb modem with 4-5 interfaces has 10-12 endpoints.roeeklinger60 wrote: 2.Figure out the amount of endpoints this hub requires, plus the amount that each modem requires, and make sure that my card supports it. or just split this up to several machine if it doesn't.
I can't help you more than so, you'll have to do your own research.
This is only theoretical for me, I've never setup so many devices myself.
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- Posts: 9
- Joined: 16 Oct 2019, 10:22
Re: Connecting multiple 4G USB modems to a USB hub
Thanks a lot ! I will do my research.LOM wrote:google "usb host controller endpoint limit" instead and keep in mind that a usb modem with 4-5 interfaces has 10-12 endpoints.roeeklinger60 wrote: 2.Figure out the amount of endpoints this hub requires, plus the amount that each modem requires, and make sure that my card supports it. or just split this up to several machine if it doesn't.
I can't help you more than so, you'll have to do your own research.
This is only theoretical for me, I've never setup so many devices myself.