[comp.sys.mac.comm] 3270 Emulation

conrad@harvarda.harvard.edu (Conrad C. Nobili) (12/05/90)

In article <1990Dec4.214002.10978@ux1.cso.uiuc.edu> robs@ux1.cso.uiuc.edu 
(Rob Schaeffer) writes:
> I am looking for a IBM 3270 terminal emulator, that works out the
> modem port, not a TelNet program.  For the Mac of course.

Of course!  :-)

Get Term 4.5.1 from brownvm.brown.edu by anonymous ftp.  It is written by 
some subset (superset?  I don't feel like looking now...) of the same guys 
who produce tn3270 (tn3d19 now) out of NCSA Telnet.  It is excellent.  
Because it is done by the same people there is a consistency of interface 
between the network product and the serial product, which is nice.

The best deal is that you can also get a nice file transfer protocol 
implementation from brownvm to go with it.  Actually, it goes with both 
tn3270 AND Term 4.5.1!  It is very nice to be able to use the same file 
transfer protocol and commands whether you are at home on a serial 
connection or at work on a network connection.  RMAC and WMAC are very 
nice in that they bring up all the appropriate dialogs on the Mac.  Oh, 
yeah, WMAC also lets you print CMS files to any chooser-selected Mac 
printer.  Definitely very useful!

The WMAC and RMAC software can be installed on your VM/CMS IBM mainframe 
(I assume that is what you have and why you want to get a 3270 terminal 
emulator) pretty easily.  I had very little trouble doing it, and I am 
certainly no VM stud.  I was pretty much new to CMS at the time and only 
had to ask a programmer some dumb questions which I probably wouldn't need 
to do now.

I installed the WMAC and RMAC software on our mainframe about a year ago 
and it has been the solution to many people's problems, especially mine.  
I now have a very good answer to all those annoying questions about 
function key assignments in Kermit, Red Ryder, zip-comm, flash-modem, 
byte-blaster, and all the other disreputable packages you can imagine.  I 
also have a very good answer to complaints about slow, inefficient file 
transfer protocols.  I have not benchmarked WMAC and RMAC myself, but a 
user who seemed to be enough of a weenie :-) to know the difference told 
me that it is pretty fast (i.e. much faster than the old version of Kermit 
he was using).  The reason Term can solve all these support headaches is 
that one can GIVE it to people (read the copyright statement or whatever 
it has though, I don't have it in front of me right now)!  I have always 
hated telling people that the best answer to their problem is going to 
cost them lots of money.  I guess I most hate it because they are somewhat 
justified in demanding that I solve their problem with what they already 
own.  They've got no argument with a free best solution though.

I don't really mean that Kermit is disreputable as I said above....  
Kermit is a wonderful thing, but unless one is inclined to figure out how 
to map the keys it stinks for talking to a VM/CMS machine. 

I posted this because I thought other people besides Rob would be 
interested, and that some people who already have Term might not have 
known about RMAC and WMAC.  Hope it's been of some use....

--Conrad

                     C o n r a d  C .  N o b i l i
Harvard University                 |  Internet: conrad@harvarda.harvard.edu
Office for Information Technology  |  BITNET:   CONRAD AT HARVARDA
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robs@ux1.cso.uiuc.edu (Rob Schaeffer) (12/05/90)

I am looking for a IBM 3270 terminal emulator, that works out the
modem port, not a TelNet program.  For the Mac of course.

Thanks
-- 
robs@ux1.cso.uiuc.edu

"My God, [static] it's full of [static] toasters..."
                           -- 2001, A Hardware Odyssey

yossie@fnal.fnal.gov (Yossie Silverman) (12/06/90)

In article <1990Dec4.214002.10978@ux1.cso.uiuc.edu> robs@ux1.cso.uiuc.edu 
(Rob Schaeffer) writes:
> I am looking for a IBM 3270 terminal emulator, that works out the
> modem port, not a TelNet program.  For the Mac of course.

As mentioned in a previous article, TERM is the solution to all your 
problems.  TERM emulates a TVI950 terminal (chosen because it has the 
shortest escape sequences of the standard 7171 terminals).  All 3270 
functions are availble under it.  It has all the standard terminal program 
features (dialout, minimal macro support, text capture).

TERM also has an incredible file xfer protocol.  Coupled with three 
products on the VM side (WMAC, RMAC, and BINHEX) it rivals ZTerm for speed 
and convenience!

BINHEX will convert between HQX and MacBin formats.  It will check that 
the file is legal Binhex.  It will compute the amount of time necessary to 
download it (via WMAC) at any given line speed.  It is BLINDINGLY fast (on 
a 3090 it can convert from MacBin to HQX at the rate of around a 
Meg/second!)

WMAC will write a file to the Mac.  TERM automatically detects the attempt 
to store a file and pops up a dialog to ask where (you can include the 
option NOMENU on the WMAC command to prevent even this, I.e. store the 
file in the current directory).  File transfer can be done in ASCII or 
MACBIN or BINARY formats.  WMAC can also send the file directly to the 
current printer and thus allow your Mac printer to be used in passthru 
mode (ala VT100).

RMAC will read a file (causing a MENU to pop up on the mac).  
Unfortunately RMAC can only read ASCII files (unless something has changed 
very recently).

The speeds I recall were in the 100 CPS at 1200 range.

The two commands (RMAC, and WMAC) work with TN3270 as well (only MUCH 
faster :-)

ANONYMOUS FTP into BROWNVM.BROWN.EDU will give you access to all the 
different files that this package consists of (some for VM, some for Mac).

Happy hunting!  - Yossie

---

yossie@fnal.fnal.gov; yossie@fnccf.bitnet
What did the Caspian Sea? - Saki

rpcfod@uarthur.UUCP (Robert Patt-Corner) (12/07/90)

In article <4920@husc6.harvard.edu>, conrad@harvarda.harvard.edu (Conrad C. Nobili) writes:
> In article <1990Dec4.214002.10978@ux1.cso.uiuc.edu> robs@ux1.cso.uiuc.edu 
> (Rob Schaeffer) writes:
> 
> I installed the WMAC and RMAC software on our mainframe about a year ago 
> and it has been the solution to many people's problems, especially mine. 

I'll second that ... we're just bringing tn3270 from Brown out of "institutionalbeta" with the WMAC/RMAC and have rarely seen such a fine piece of work.  It's aan interesting note when Public Domain software seems to exceed the quality of
a lot of commercial work.

Reassured to see you feel the same way after a year ...
 

bschmidt@bnr.ca (Ben Schmidt) (12/10/90)

In article <34@uarthur.UUCP> rpcfod@uarthur.UUCP (Robert Patt-Corner) 
writes:
> In article <4920@husc6.harvard.edu>, conrad@harvarda.harvard.edu (Conrad 
C. Nobili) writes:
> > In article <1990Dec4.214002.10978@ux1.cso.uiuc.edu> 
robs@ux1.cso.uiuc.edu 
> > (Rob Schaeffer) writes:
> > 
> > I installed the WMAC and RMAC software on our mainframe about a year 
ago 
> > and it has been the solution to many people's problems, especially 
mine. 
> 
> I'll second that ... we're just bringing tn3270 from Brown out of 
"institutionalbeta" with the WMAC/RMAC and have rarely seen such a fine 
piece of work.  It's aan interesting note when Public Domain software 
seems to exceed the quality of
> a lot of commercial work.

Peter diCamillo at Brown University has done an excellent job.  IF you are using VM and Macs, you owe it to yourself to look at WMAC and RMAC.

Ben Schmidt     Bell-Northern Research, Ltd.   Ph: (613) 763-3906
Information     P.O. Box 3511, Station C       FAX:(613) 763-3283
Technology      Ottawa Canada K1Y 4H7          bschmidt@bnr.ca