I always recommend http://www.byterunner.com for multi-port serial cards,
ISA or PCI. Their PCI cards come with a DOS driver which makes COM port &
IRQ selection very flexible.|
If anybody needs a 4-COM port ISA card, I have a Byterunner TC-400 for $20
73 de Doug, N6RT
At 09:23 PM 12/12/2004 -0600, Robert Pack (NX5M) wrote:
>I have attached the link for where I bought my dual-port cards.
>They are for ISA slots. Each port can be configured with its own IRQ.
>They may have them for a PCI slot as well.
>----- Original Message -----
>From: "David A. Pruett" <email@example.com>
>To: "Robert Pack (NX5M)" <firstname.lastname@example.org>; "Bill Feissner"
>Sent: Sunday, December 12, 2004 9:11 PM
>Subject: Re: [NA-User] 4 serial port card
>> Bill, Bob, et al:
>> I ran into the PCI/COM wall last fall when we were prepping for our VE1JF
>> trip for the 2003 CQWW SSB. We were taking our own computers (to run NA)
>> rather than running WrongLog which was on the host station's PCs. The
>> computers were these cute little Acer P-200 desktops which I got at a
>> computer show for $75 each with a 2 GB HDD, single COM, single LPT, a
>> CD-ROM and 32 MB of RAM. The problem with small form factor PCs is
>> expandability - there were only two slots - one a PCI and the other a
>> Since this was a phone contest, the ISA slot was taken by a W9XT Contest
>> Card. We needed two COMs on one computer (radio & network) and three on
>> the other (radio, network, and packet). I found PCI single-COM cards at
>> CompUSA which worked fine for the first computer after some
>> to determine what the configuration program used as the default IRQ.
>> For the other computer, I looked very hard for even a dual port PCI serial
>> card which would work with NA. While I could find dual port PCI COM
>> they all suffered from a common shortcoming: the two ports both shared a
>> common interrupt request line (IRQ) and the COM port handlers in NA are
>> designed to require separate IRQs for each port. CT has the same
>> limitation. TRLog doesn't because it polls the COM ports and doesn't use
>> IRQs; however for this reason it's limited to 4800 baud.
>> Ultimately, for the 'JF trip what I did was rummage through my junk box of
>> old cards and found an ISA card with two ports with settable IRQs.
>> Unfortunately, I don't have a good answer for Bill right now. If your
>> motherboard has two COMs on board, you can probably add a third COM with
>> the commonly available single-COM PCI cards.
>> At 02:32 PM 12/12/04 -0600, Robert Pack (NX5M) wrote:
>> >If you have two you could just add another dual port card.
>> >That is what I did with all my stuff.
>> >Bob NX5M
>> >----- Original Message -----
>> >From: "Bill Feissner" <email@example.com>
>> >To: <firstname.lastname@example.org>
>> >Sent: Sunday, December 12, 2004 1:51 PM
>> >Subject: [NA-User] 4 serial port card
>> > > Hello all,
>> > > Anyone have any ideas on where to get an inexpensive PCI 4 serial port
>> > > card? If you already have 2 do you need to buy a 4 port card or just
>> > > 2 port card to add to the 2 on the motherboard? I'm far from a
>> > > wiz as you can see. Any thoughts and help appreciated.
>> > > 73,s de AI3Q, Bill Feissner
>> > >
>> > >
>> > > _______________________________________________
>> > > NA-User mailing list
>> > > NA-User@contesting.com
>> > > http://lists.contesting.com/mailman/listinfo/na-user
>> > > NA on the web: http://www.datomonline.com/
>> > >
>> > >
>> > >
>> >NA-User mailing list
>> >NA on the web: http://www.datomonline.com/
>> NA-User mailing list
>> NA on the web: http://www.datomonline.com/
>NA-User mailing list
>NA on the web: http://www.datomonline.com/
NA-User mailing list
NA on the web: http://www.datomonline.com/