Greetings,
When I was running short on IRQs, I installed a Byterunner card that can
have as many as 8 Com ports and uses a single IRQ. I use Com 1 and Com 2
off the main PC for the mouse and radio. I have a Kam Plus for RTTY on Com
3 and a KPC-3 for packet on Com 4. The card I purchased had two ports, but
Byterunner also sells 4 and 8 port versions.
73 de Tom, K4NR
> > 4.) Finally, the design architecture of the PC causes some
> > strange results when you attempt to use more than two COM
> > ports because of the sharing of hardware interrupts. Without
> > getting too technical, be aware that often devices that use
> > COM 1 and COM 3 may not work simultaneously because they share
> > IRQ 4. Likewise, COM 2 and COM 4 devices share IRQ 3 and may
> > not work simultaneously. To check this out, get all your
> > Write Log devices working ONE AT A TIME. Once you achieve
> > that, then try to use them simultaneously.
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