[comp.protocols.misc] What is "5250" protocol

dmiller@CS2.CS.WSU.EDU (07/13/90)

I had someone ask me about a "5250" protocol the other day and I have
been unable to find any reference to it.

Any pointers to where I might find out something about it would be greatly
appreciated.  A brief description would be great too.

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David L. Miller                     Internet: millerd@prime.tricity.wsu.edu (?)
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david@jdyx.UUCP (David Mandell) (07/13/90)

dmiller@CS2.CS.WSU.EDU writes:

>I had someone ask me about a "5250" protocol the other day and I have
>been unable to find any reference to it.

>Any pointers to where I might find out something about it would be greatly
>appreciated.  A brief description would be great too.

5250 is an IBM terminal / controller system.  It is similar to the much
more common 3270 series (but the underlying protocol is different).  For
one thing, a 5250 terminal is usually connected to it's controller via a
twinax cable, whereas 3270 uses coax.  I think that 5250 is real common on
IBM's midrange systems.  

If you want to find info on it, consult the IBM KWIC (Key Work In Context) 
reference for a list of 5250 manuals.
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David G. Mandell			     david@jdyx.UUCP
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sharon@asylum.SF.CA.US (Sharon Fisher) (07/14/90)

In article <9007130458.AA22793@cs2.cs.wsu.edu> dmiller@CS2.CS.WSU.EDU writes:
>I had someone ask me about a "5250" protocol the other day and I have
>been unable to find any reference to it.
>
>Any pointers to where I might find out something about it would be greatly
>appreciated.  A brief description would be great too.

It's the terminal protocol for IBM System/3X minicomputers, in the
same way that 3270 is the terminal protocol for mainframes.  I believe
the AS/400 supports both, though.

nick@ultima.cs.uts.oz (Nick Andrew) (07/14/90)

dmiller@CS2.CS.WSU.EDU writes:

>I had someone ask me about a "5250" protocol the other day and I have
>been unable to find any reference to it.

5250 is the code number for the display protocol used by AS/400s (and
System 36, 38 etc...). As you're a VM'er, I suggest you ask your local
IBM rep for the number of a manual which will describe the protocol
in detail.

Nick.
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