[WriteLog] serial interface PCI expansion boards

[Steve Dyer]

Direct FSK does not use 5 bit. MMTTY, WL, etc. toggle a single serial line
(TXD or RTS) to generate FSK.

I don't know if the PK900 actually communicates with the serial using 5 bit
mode, but I would be very suprised. I assume all TNC's use standard ASCII
characters in 8 bit mode. The MFJ unit I had did it this way.

You are correct, don't get or use ISA. One additional point on ISA is the
Plug and Play enumerator cannot probe ISA slots fully.

Steve, W1SRD

-----Original Message-----
From: writelog-admin@contesting.com
[mailto:writelog-admin@contesting.com]On Behalf Of Ron Stordahl
Sent: Wednesday, July 10, 2002 7:22 AM
To: n2tk@arrl.net; Writelog (E-mail)
Subject: Re: [WriteLog] serial interface PCI expansion boards


I have two of the Byterunner PCI-410HSP-9's.  They are PCI cards, use a
single IRQ and have 4 serial and 1 parallel ports.  Just for a test I put
both of them in a single PC so that I had a total of 10 COM ports (the
mainboard has 2 of its own as is common) and 3 parallel ports (1 on the
mainboard).  I tested all of the ports, they all worked.  I did not test in
5 bit mode for direct FSK as I am not running soundcard fsk, rather I am
using a PK900 for that.

I did ask the guy at Byterunner this card supported 5 bit mode and he said
it does....however I would test it myself before I believed it.

The additional ports (8 coms and 2 parallel ports) use a single IRQ (=9).

You might want to check  http://byterunner.com  and call their technical
service line, you will probably talk with  'Sean' (he has answered every
time I have phoned--could be a one man operaton) and put him on the spot on
the 5 bit issue.  Ask him to guarantee it will work or money back and test
it yourself and let us know one way or the other.

Ron N5IN

PS--Don't buy ISA cards....they are dying!!!



----- Original Message -----
From: "N2TK" <tony.kaz@verizon.net>
To: "Writelog (E-mail)" <writelog@contesting.com>
Sent: Wednesday, July 10, 2002 7:16 AM
Subject: [WriteLog] serial interface PCI expansion boards


> Time to add more serial ports. I just have the 2 that are on the
> motherboard. Which one to buy? I see serial boards offered by Boca, SIIG,
> Lava, WinComm, Rocketport, etc. It seems they all use one IRQ. Is there
any
> problems with using one IRQ? If not, I can save a few IRQ's by installing
a
> 4 port serial PCI card and disable the onboard serial ports. If
performance
> is better by using individual IRQ's, then I can get a 2 port serial card
and
> use these ports along with the 2 ports on the motherboard.
> Is there a preferred PCI board(s) and/or ones to stay away from?
> Tnx
> Tony
> N2TK
>
> _______________________________________________
> WriteLog mailing list
> WriteLog@contesting.com
> http://lists.contesting.com/mailman/listinfo/writelog
>

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