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From: rauletta@gmuvax2.gmu.edu (R. J. Auletta)
Newsgroups: comp.sys.dec,comp.unix.ultrix
Subject: VS2000 printer port
Keywords: pin-outs and unix ioctl's
Message-ID: <3155@gmuvax2.gmu.edu>
Date: 21 Dec 90 21:45:36 GMT
Followup-To: comp.sys.dec,comp.unix.ultrix
Organization: George Mason Univ., Fairfax, Va.
Lines: 34

I'm looking for the precise definition of the pin-outs on the printer
port on a Vaxstation 2000.

Also what is and is not supported in terms of ioctls and tty(4)?
Hardware support for flow control as in local mode bit LAUTOFLOW?
I'm trying to figure out why a printer hooked to a 3600 plays
but the same printer hooked to a printer port on the VS2000 drops
files on occasion (with the same printcap entries).

Does the full serial port support a wider range of function?


thanks,

--R J Auletta
rauletta@gmuvax2.gmu.edu
rauletta@sitevax.gmu.edu

******

I have been operating under the assumption the following is true.
The 9-pin connector is configured as follows:

pin no.        function
------         --------
1              carrier detect (CD) - IN
2              receive data   (RD) - IN
3              transmit data  (TD) - OUT
4              data terminal ready - OUT
5              signal ground  (SG) - ground
6              data set ready (DSR)- IN
7              request to send (RTS)- OUT
8              clear to send   (CTS)- IN
9              ring indicator  (RI) - IN