MrAl How did you wire your switches to the hub? Can you please include some pictures. Also, the circuit that I posted doesn't lack anything, right?
Hi,
Sorry i cant supply pictures because for one it is enclosed and i'd have to take it apart again, and two i dont use it anymore so i would have to find it to do any pictures. When i went to USB 3.0 i stopped using it because it was only for USB 2.0, so you see what happens when we design something for an old standard then later in the future decide to 'upgrade'.
But the wiring is so simple it doesnt even need a picture. This is how i did it, think about this..
Took the case of the USB hub apart. Took out the pc board. Found one of four USB connector lines (2 lines plus power and ground). The hub was made with individual ports from the single chip for each USB connector, so that meant i found the two data lines that went to the chip on the end and to the USB connector on the end, then cut them with either a sharp knife (being very careful not to cut any other lines on the PC board) or a Dremel, i think i used the knife on this one.
After they were cut, i cut the next set also, the next to last chip lines.
So now i have two sets of two data lines cut from the connectors, and also two power lines. I did not cut the ground lines.
Now i wire in the switches, which were 3PDT switches. The reason i used the "DT" type was because i wanted to wire both USB A female to one USB chip. Doing this meant that only one of the two ports could be used at any time, and that was cool with me.
Next the switches were wired onto the traces that had been cut, after removing a small amount of green board paint that covered the traces, again being very careful. The leads were kept short, and the switches were wired so that when one switch was off the other switch was allowed to take over the chip port, and when the opposite switch was on it would prevent the other from turning on. This is where the DT comes into play, because the opposite switch provides the feed though when it is off, but does not provide free through when it is on.
I'll try to find it again and see how hard it would be to get apart.
Also, i just realized i probably took pictures already so i'll look for those first.