RFC 1205 (rfc1205) - Page 1 of 12

5250 Telnet interface

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Network Working Group                                     P. Chmielewski
Request for Comments: 1205                               IBM Corporation
                                                           February 1991


                         5250 Telnet Interface

Status of this Memo

   This RFC is being distributed in order to document the interface to
   the IBM 5250 Telnet implementation.  This information is being
   provided for hosts on the Internet that want to support the 5250 work
   station data stream within the Telnet protocol.  This memo provides
   information for the Internet community.  It does not specify any
   standard.  Distribution of this memo is unlimited.

1.  Introduction

   This RFC describes the interface to the IBM 5250 Telnet
   implementation.  The purpose of this memo is to describe the details
   of the interface so that a person wanting to implement a client
   Telnet which emulates an IBM 5250 work station would be able to do
   so.  This memo does not describe all of the 5250 commands, aid codes,
   and other information specific to the 5250 data stream.  That
   information is contained in the IBM 5250 Information Display System,
   Functions Reference Manual, IBM publication number SA21-9247.
   Corrections and additions to this manual are documented in this RFC
   in section 5.

2.  Telnet Options

   No new Telnet options are defined for 5250 mode of operation.
   However, to enable 5250 mode, both the client and server must agree
   to at least support the Binary, End-Of-Record (EOR), and Terminal-
   Type Telnet options.  The complete list of 5250 terminal types is
   maintained in the Assigned Numbers RFC and includes the following:

     IBM-5555-C01   24 x 80 Double-Byte Character Set color display
     IBM-5555-B01   24 x 80 Double-Byte Character Set (DBCS)
     IBM-3477-FC    27 x 132 color display
     IBM-3477-FG    27 x 132 monochrome display
     IBM-3180-2     27 x 132 monochrome display
     IBM-3179-2     24 x 80 color display
     IBM-3196-A1    24 x 80 monochrome display
     IBM-5292-2     24 x 80 color display
     IBM-5291-1     24 x 80 monochrome display
     IBM-5251-11    24 x 80 monochrome display




Chmielewski
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