[NFBCS] Terminal emulation is 3270 emulation

Tue Feb 11 19:27:39 UTC 2020

The emulation and the connection protocol are 2 different things.  The 
communications protocol determines how characters are sent over the 
wire.  The emulation determines which characters are  sent. If you press 
a key on your keyboard, it could send just about anything to the 
mainframe.  You have to have a terminal emulator program that knows to 
send the same keys that an old IBM 3270 terminal would have sent. Its 
like if you call somebody on the phone, that doesn't mean they are going 
to understand what you say. Calling someone on the phone is establishing 
the connection protocol. In your case, you use telnet, not ssh. But even 
after you get connected, you have to talk the same language.

I am kind of surprised putty worked at all. I think SecureCRT is worth a 
try though. Ggoogling shows me that TN3270 emulation was added to 
SecureCRT in 2015.

If you are really desperate, jaws has a really nice scripting 
environment. You might be able to write a jaws script for Hummingbird. I 
haven't written a jaws script in 20 years but at one time, Freedom 
Scientific tech support was willing to help with that. For them, its 
getting a programmer to work for free. At one time at least, they were 
smart enough to be very helpful.

> Glen G reminds me that my kind of terminal emulation is 3270 emulation,
> just to clear up my sloppy terminology.
> Tracy
> 
>> I am trying to access an IBM mainframe, and use TSO/ISPF on it.
>> I'm a bit unclear about SSH, even after reading about it.  My boss does
>> have PuTTY, and tried getting into the mainframe with it, but he said it
>> showed the screens in a very strange way, with the whole screen on 1 long
>> line, if I understood him right.
>>
>> I'll ask him about Open SSH, but it may be the same as PuTTY.  He knows
>> more about this than I do.  I'm basically a mainframe programmer.  The
>> protocols that get me into the mainframe and let me do my job don't mean
>> much to me.
>>
>> Steve J has recommended some fonts, but my emulator doesn't have them.
>> Tracy
>>
>>> Hello Tracy,
>>>
>>> If you are trying to access a Linux environment, JAWS supports putty and
>>> SecureCRT "https://www.vandyke.com/products/securecrt/".
>>>
>>>
>>> Regards
>>> Louis Maher
>>> Phone: 713-444-7838
>>> E-mail ljmaher03 at outlook.com
>>>
>>> -----Original Message-----
>>> From: NFBCS <nfbcs-bounces at nfbnet.org> On Behalf Of Tracy Carcione via
>>> NFBCS
>>> Sent: Tuesday, February 11, 2020 9:40 AM
>>> To: nfbcs at nfbnet.org
>>> Cc: Tracy Carcione <carcione at access.net>
>>> Subject: [NFBCS] Terminal emulation
>>>
>>> I am really stuck.  Hummingbird works well, so long as I don't type.
>>> Once
>>> I start typing, according to Jaws, the font goes to no font, and Jaws
>>> can't find the cursor.
>>> I called Jaws, and they just said to try a bunch of font sizes.  I did
>>> that, but it all works the same--typing turns to no font.
>>>
>>> I asked Jaws if changing the cursor dimensions through the setting
>>> center
>>> would help, and the gal said no.
>>>
>>> Hummingbird is what my coworkers are using, and it's so close to working
>>> for me, but not close enough.  I guess I'll have to try other software,
>>> when I can get someone with admin rights to install a demo copy for me.
>>>
>>> I'd welcome any ideas more useful than randomly changing fonts.
>>> Tracy
>>>
>>>
>>>
>>>
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>>
>>
>>
>>
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> 
> 
> 
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