Connecting extra hubs.

Hello, I have one of these powered hubs.....

https://www.pccasegear.com/products/...-0-powered-hub

.... but I've used it all up.

When I get another one can I just connect it to a USB port of the
first, or do I have to plug it into the computer like the first?

P

In article ,
says...

Hello, I have one of these powered hubs.....

https://www.pccasegear.com/products/...-0-powered-hub

... but I've used it all up.

When I get another one can I just connect it to a USB port of the
first, or do I have to plug it into the computer like the first?

P

I do it, no problems though network map isn't always correct in it's
display.

Peter Jason wrote:
Hello, I have one of these powered hubs.....

https://www.pccasegear.com/products/...-0-powered-hub

... but I've used it all up.

When I get another one can I just connect it to a USB port of the
first, or do I have to plug it into the computer like the first?

P

At some point, there will be a limit to the number of
concatenated hubs.

One constraint is, USB2 hubs have a limit of around five or
so. The USB3 wiring consists of two halves. Four pins work
at USB2 rates, while the other five pins work at USB3 rates.
You want the USB2 portion of the interface to work, in any
case, so that device setup will work properly. I don't know
whether native USB3 has different hub limits.

Intel_Southbridge_or_PCH --- hub --- hub --- hub --- hub --- device
[counts as one hub!]

Now, inside the Orico are *multiple* VIA chips. One chip
feeds three more VL812. The fourth port on the first chip,
feeds a connector.

PC --- VIA VL812 ---- VL812 - \
counts \ \ \ - \
as one \ \ \ - \
hub \ \ \ - \
\ \ \__ VL812- \
\ \ - \__ twelves ports are two hubs deep
\ \ - /
\ \ - /
\ \___ VL812- /
\ - /
\ - /
\ - /
+---------- == this port is 1 hub deep, good for daisy chain
X \___
X / \_ the two charging ports have no data connection

When daisy chaining devices, you want to find the
"most shallow" port. And based on the fanout of
13 data ports, I suspect this uses four chips total,
and one port is a single hub deep, in terms of hub count.
And that's what you want to use for the next (and last) Orico.

This also assumes the Orico product has good table
manners and there are no +5V backflow issues with it.
Which is harder to detect than you might hope for.

Now, a good user manual, would indicate in some way, which
of the 13 ports is the daisy chain port. Good luck with that...
The "architecture" of the product is obviously a big secret.

On an Apple computer, there was a hardware enumerator feature
that would "draw" some wiring connections. On Windows on the
other hand, there is generally nothing in a big hurry to draw
wiring diagrams for you so you can count hubs and such.

Unless the design of tools like this has changed, they
generally draw the line at some point, of showing "subtending
networks of stuff". If the USB utilities had to show all
127 devices you connected, they would have "software heart failure".
So I am not expecting miracles from a utilities perspective.

https://www.uwe-sieber.de/usbtreeview_e.html

Computers are our servants... but only up to a point.

Paul

On Mon, 23 Sep 2019 00:02:45 -0400, Paul
wrote:

Peter Jason wrote:
Hello, I have one of these powered hubs.....

https://www.pccasegear.com/products/...-0-powered-hub

... but I've used it all up.

When I get another one can I just connect it to a USB port of the
first, or do I have to plug it into the computer like the first?

P

Thanks, Ill buy the same one & just connect it to the computer.
Peter