Using one PC to control multiple LCD touch screens? 2

[davidd31415]

I am considering designing a customer interface using LCD touch sceens and am curious if there is preferred hardware for connecting multiple (20+) LCD touchscreens to a single computer?

Any insight you have to share that may be related to this project would be appreciated.

Regards,

David

 

[LawnBoy]

With the touch screens I've used, the 'touch' part acts like a mouse and needs a comm port. So that's 20 usb or serial ports you'll need to have.

You'll also need 10 2-port video cards. You'll probably need an industrial style PC to get that many expansion slots on one motherboard.


"We must fall back upon the old axiom that when all other contingencies fail, whatever remains, however improbable, must be the truth." - Sherlock Holmes

 

[acewarlock]

A KVM with multi imputs.




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[wahnula]

A KVM won't cut it...you need the V output part for video, but a serial input for the touchscreen. I've researched a little on this issue with no apparent solution, short of running lots of PCs sharing a common database, or an enormous motherboartd like LawnBoy suggests.

I'll keep sniffing around...maybe a post in forum693 would be more fruitful.

Tony

Users helping Users...

 

[acewarlock]

If the touch screen is like a Mouse is a serial imput, then the KVM should work.




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[davidd31415]

Thanks for the responses.

I'll write a post in forum 693 after doing some more research.

David

 

[tf1]

You can get 8-port serial PCI cards from suppliers such as Lindy. The output is presented on a 72-way D-socket which you plug in a 72-way to 8 x 9-pin serial cable adapter. I not had experince with multiple cards, but the single card works fine and I don't foresee a problem running 2 or 3 cards on a decent motherboard.

Three of those will provide 24 serial ports. Note that drivers are not available for Vista, so you'll need a 'last generation OS' (including windows server 2003 and linux options).


Regards: tf1

 

[LawnBoy]

Ace, KVMs are input devices, not output devices.



"We must fall back upon the old axiom that when all other contingencies fail, whatever remains, however improbable, must be the truth." - Sherlock Holmes

 

[acewarlock]

I was thinking One keyboard, mouse and Monitor on many PC's and , not one keyboard, PC and many Monitors. I was thinging (back ass wards) Sorry




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.