On my Sparcstation 5, both of the Serial ports are zstty:

zstty0 at zs0 channel 0 (console i/o)
zstty1 at zs0 channel 1

Haven't booted NetBSD on my 20 in some time, but I believe it should
be similar.  If you examine the output of the dmesg command or cat
/var/run/dmesg.boot it should have more details on what was detected
at boot.

Hope this helps,
~Joe

On Tue, 11 Jan 2005 06:11:14 -0800 (PST), Dmitri Kondratiev
<d_kondr@yahoo.com> wrote:
> Hi,
> I am trying to establish ppp conection from my
> SparcStation 20. To test modem I followed the example
> from the guide
> (http://www.netbsd.org/guide/en/chap-net-practice.html#chap-net-practice-modem-testing):
> 
> [quote]
> Create the file /etc/uucp/port with the following
> lines:
> 
> type modem
> port modem
> device /dev/ttyB
> speed 115200
> 
> Write the command cu -p modem to start sending
> commands to the modem. For example:
> 
> # cu -p modem
> [/quote]
> 
> I get "Connected." But when I try to input "ATZ" I get
> i/o error. The same thing happens with ttypA ...
> 
> Question:
> What device to use to access com port on
> SparcStation20?
> What should there be in:
> /dev/tty?
> 
> I use external US Robotics modem (which works fine
> with Linux PC) connected by 25M/25M cable to a single
> port on my sparc. Could error result from a wrong
> cable I use?
> 
> Thanks,
> Dima
> 
> 
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