20 RS232 ports possible

[BobHorn]

Is it possible to use two PCI expansion boards to get 20 RS232 ports?

Thanks,

Bob

[smercurio_fc]

The most ports I've seen as far as plug-in cards is 8, with Quatech being a known manufacturer. You can probably go with something like this, from Digi International.

[BobHorn]

I was wondering about being able to use two of the PCI-8430/16 expansion cards.

Bob

[K C]

Hi,

I don't want to get you away from NI    but you can also try this or similar devices

[Steven_T]

Hello BobHorn,

There is not a limitation in either the PCI-8430/16 or the  NI-Serial driver that would make you stop at just 20 serial ports.  Windows and our driver can successfully deal with up to 256 ports on a single computer.

This knowledgebase gives a little more information since it is dependant on your operating system.
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/f7a9002d7b8e31e7862568d6006bd10b?O...

I hope this helps,
Steven T.

[BobHorn]

Steven T,

That was exacty what I was looking for!

Thanks,

Bob