🚀 go-pugleaf

In article <610.25ed456b@tacvax.mdcbbs.com> wright@tacvax.mdcbbs.com writes:
>	1) We have connected to tty01 port on the back, is this correct?
You can generally attach it to any serial port.  You just have to tell the
system in /etc/printcap which tty you are attaching it to.

>	2) What is the correct DECconnect adapter to use H-8571-? I am using 
>	   an H-8571-A.
I'll pass on this one.

>	3) Are there any special considerations for this type of printer?

>		a) I have the getty set at "std.9600" dw2 (Decwriter II).
>		b) The printer is set at 9600 baud, 7/Space.
Not sure what the correct option is for telling the printer capability database
(/etc/printcap what filters to use -- the manual sections referenced below do
discuss this).

>	4) I can login to the system from the printer as a hardcopy unit with
>	   no problem. 

>	5) When I try "cat /xxx/xxx > /dev/tty01", I do not get a standard 
>	   output, is becomes stairstep. (it also fills the buffer and craps
>	   out)
That's because the serial lines are in different character-handling modes when
you log in as opposed to when you just redirect stuff there.  When you are
logged in it puts the line into `COOKED' mode and does mapping of line-feeds to
carriage-return+line-feed.  When you are not logged in, it is probably in `RAW'
mode where flow control is disabled and no filtering (including LF->LF+CR)
happens.  Normally `cat /xxx/xxx > /dev/ttyxx' will not work quite the way you
intended if nobody is logged in on the line.  You can either write a program
that will open that line, put it into the correct modes and send the file to
the printer, or if you're trying to set this up as a printer (you don't actually
say in the posting--if you are, this is probably a much better way) make the
necessary changes to /etc/printcap.  Ultrix has a program (/etc/lprsetup) that
will help you set up the printer correctly.  You need to pay attention to the
`fs' and `fc' fields, since that is where bits/char and parity are handled.  
Refer to tty (manual section 4) for a more in-depth and confusing list of the 
values for these fields.  We use  
	:fc#044:\	<- turn off raw & mapping of uppercase to lower case
	:fs#023:\	<- turn on echo LF or CR as CR-LF, return each char as
			   soon as it is typed, and enable auto flow control
as the appropriate fields for fc (flag clear) and fs (flag set).  This was for
7 bits (the Ultrix default--8-bit stuff seems to be available only in RAW mode).
I don't find any reference to either space or mark parity, so chances are it's 
ignoring it.  You can set odd parity by adding 0100 (octal 100) to the fs# or 
even by adding 0200 to the fs# (ie., :fs#0223:\ ).  You'll probably want to do 
some reading on printers in the `Setting Up the Environment' section of the 
Administrative Guides.

Hope this helps,
-stefan

Default disclaimer about my being hopelessly muddled on most issues and perhaps
wrong on some of the above.
-- 
---------------------------------------------- MA Bell: (708) 260-5019 ---------
Stefan Brandle                  UUCP: ...!{obdient,uunet!tellab5}!wheaton!stefan
Wheaton College			or	stefan@wheaton.UUCP
Wheaton, IL 60187 		"But I never claimed to be sane!"