Hello Lars,
If you need several serial ports you will need a card. PCI cards
are available from several vendors. Try Cyclades (www.cyclades.com).
They have an 8 port card, and I think you can use more than one card
per motherboard. They offer Linux drivers, so you won't have any
problems setting them up.
Best regards,
Rodrigo.
On 8/25/05, Lars-Hendrik Schneider <[EMAIL PROTECTED]> wrote:
>
> Hi Folks,
>
> I am looking for some hints how to connect several (-> more than two)
> gsm modems to one computer.
>
> The situation:
> I currently use kannel with 3 Wavecom modems as SMS gateways for three
> different providers that do not route between each other (the computer
> is running in West Africa). Therefore I had to set up one modem for each
> provider. These modems are connected with the serial ports of the
> computer. In order to get more than two serial ports I installed an old
> ISA-card that offered me four serial ports which could be configured
> with jumpers to set different IRQs. This was necessary because otherwise
> you can only use two serial ports at a time. Then I used the
> "setserial"-command at startup to define the different /dev/ttyS[n].
> This works quite well, as long as you have these old ISA-cards :-(.
>
> The problem:
> In the next future I want to set up new servers in other west african
> countries. Again - more than two different providers but no routing
> between them - and - no ISA-cards left. And modern computers don't have
> ISA-slots either.
>
> So now I'm looking for a possibility to connect my Wavecom modems to a
> modern computer. Did anyone use USB to serial converters to do so? Or is
> there another way to connect a larger number of modems to a modern
> computer hardware? I once tried to use PCI-serialport-cards, but I
> didn't figure out how to set the IRQ there with Linux.
>
>
> Any hints would be appreciated!
>
> Greets from Bonn (Germany),
>
> Lars-Hendrik
>
>
