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From: TEB106@psuvm.psu.edu (Tom billet)
Newsgroups: comp.sys.ibm.pc
Subject: Connecting printer thru serial port
Message-ID: <90163.165653TEB106@psuvm.psu.edu>
Date: 12 Jun 90 20:56:52 GMT
Organization: Penn State University
Lines: 14

We have a Digital LetterPrinter 210 which was previously used as a printer
connected to a VT220 terminal (connected to an IBM Mainframe).  The VT220
terminal was traded in on an IBM PS/2 Model 50Z, and we would now like to use
the printer with the new PC.  The only problem is that the printer only has a
serial port.  I tried connecting the printer thru the serial port and can not
get it to work.  I tried setting the dip switches and altering the different
 parameters but I am still far from getting it to work.  I called the DEC
support group and they said that pins 2 & 3 (send and receive) had to be revers
ed (like a null modem does for a PC to PC connection).  I couldn't believe
that they should be reversed, but I tried it anyway and it still didn't work.
Does anyone have any suggestions for things to try.  Thanks in advance.


                                                  TEB106