Just throwing out info here.
I run a 8 camera mutilplexer.
you can have up to 8 camera's on all the time
The MUX (multiplexer) , only switches the 8 camera inputs to the video capture card.
In other words, all camera's are on full time and all you are doing is switching to each camera to see what it is seeing.
The mux is a very simple piece of hardware that plugs into a pci slot and then a cord plugs into your pc paralllel port.
The switching commands are done via software by issuing commands to the pc's parallel port.
If you are intrerested, the link to the mux I use is on this page, about halfway down the page
http://www.fgeng.com/#ProductsI switch the mux via visual basic at 10 second intervals and view all my cameras.
Doesn't matter what type of camera, wired or non-wired, they are all just a camera signals coming into the mux
The mux just channels the signal to your video capture input, like the the AHP USB adapter.