7 Jul
2013
7 Jul
'13
2:46 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-
bounces at classiccmp.org] On Behalf Of Robert Jarratt
Sent: 07 July 2013 11:11
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Talking to ASR33 Over DECserver 90M Using Reverse Telnet
I am trying to get communication going from SIMH to my ASR33 connected to
a DECserver 90M. It works except for the Line Feed character. It seems the
DECserver is not passing the Line Feed through to the ASR33. I have looked
at
the Telnet RFCs and I think I need option NAOLFD
(http://tools.ietf.org/rfc/rfc658.txt) but the DECserver responds with a
WONT when I modify SIMH to send this option.
Have I got the right option or is there another option I should be
sending?
I also tried looking at the port options on the DECserver, and there
doesn't
seem to be anything there that controls this. I had a
go with a RAW telnet
listener on the DECserver but it didn't work at all.
Thanks
Rob
Well, I have not had any replies, but I thought more while I was out with
the family today, came back and tried again.
This time the 90M RAW mode did work. The difference was on the SIMH side. I
set the DZ to connect to telnet mode even though the 90M was not in telnet
mode, SIMH does not send any Telnet commands when making a connection, so it
worked perfectly. NB I am using recent post-3.9 builds where the TMXR module
adds generic support for serial devices over Telnet or serial ports.
SOOOO pleased with the ASR33, it hums away beautifully and prints really
well now. Next job is the paper tape....
Regards
Rob