https://www.ibm.com/docs/en/zos-basic-skills?topic=terminal-3270-data-stream
Specifically listed but no link,

On Thu, Aug 15, 2024 at 7:45 PM Tom Brennan <[email protected]> wrote:
>
> I don't think TN3270/TN3270E protocols are related to this manual.
> They're basically just a layer used to pass the binary 3270 data stream
> back and forth.
>
> But Lennie has a good point.  I have a printed copy -05 from 1990 and
> it's pretty beat up.  I seem to remember it on an IBM doc site until
> (guessing) 2005 or so, then it was suddenly gone.  Maybe someone made a
> mistake in removing it, because it's certainly required for anybody who
> wants to code their own 3720 screens, or simply wants to know how things
> work.
>
> On 8/15/2024 5:33 PM, Ken Bloom wrote:
> > 3270 is supported via tn3270 and tn3270E.   That’s the protocol supported 
> > by IBM OSA or Visara CCA3074 etc.   You can probably find some old coax 
> > manuals for native 3270.
> >
> > Ken
> >
> >
> > Kenneth A. Bloom
> > CEO
> > Avenir Technologies Inc
> > /d/b/a Visara International
> > 203-984-2235<tel:203-984-2235>
> > [email protected]<mailto:[email protected]>
> > www.visara.com<http://www.visara.com/>
> >
> >
> > On Aug 15, 2024, at 8:22 PM, Lennie Bradshaw <[email protected]> 
> > wrote:
> >
> > So if the protocol is still supported, and still used, and still a valid 
> > programming interface, why is there no *current* manual available from IBM 
> > documenting it?
> >
> > Lennie
> >
> > -----Original Message-----
> > From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
> > Jay Maynard
> > Sent: 15 August 2024 23:02
> > To: [email protected]
> > Subject: Re: 3270 programming
> >
> > I think IBM still supports 3270 access, if not the 3270s themselves.
> >
> > But if the data stream hasn't changed since the -7 manual was published, 
> > there's no need for an update...
> >
> > On Thu, Aug 15, 2024 at 4:54 PM Paul Gilmartin < 
> > [email protected]> wrote:
> >
> > On Thu, 15 Aug 2024 15:16:15 -0500, Mike Schwab  wrote:
> >
> > There have been no updates.
> >
> > Does IBM continue to support the device?  If not, there's little
> > business case to provide user's manuals.
> >
> > Regardless, some documentation is necessary as long as IBM products
> > depend on 3270 data streams.
> >
> > --
> > gil
> >
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> >
> >
> >
> > --
> > Jay Maynard
> >
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>
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-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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