Tn3270 for the Macintosh tn3270 for the Macintosh by What's new — October, 2016 • What's new — November, 2013 • What is tn3270? Tn3270 is a terminal emulation program for connecting to computers which use IBM 3270 terminals. Major features of the emulation include color, extended highlighting, support for different screen and font sizes, and SSL support. Some more obscure features include support for the APL character set, and support for file transfer and remote printing when tn3270 is used with an IBM VM/CMS host.

ZOC Terminal is a professional and feature-rich TN3270 terminal emulator which lets you access IBM zSeries and iSeries mainframes via normal or secure (SSL) telnet connections from a Windows PC or Mac.

The Classic version of tn3270 also supports 3179 graphics emulation. There is no license fee for either commercial or non-commercial use of the tn3270 application. The tn3270 source code is freely-licensed for non-commercial use, but must be licensed for commercial use. Couple app for mac.

What is required to use tn3270? To use tn3270, the host computer must provide a telnet server which supports the extensions for 3270 terminals. On your Macintosh, you must be able to connect to the host server using TCP/IP. Although primarily a 3270 emulation program, tn3270 also supports ordinary line mode telnet connections. This support allows tn3270 to operate with hosts which establish a line mode connection before entering 3270 mode, as well as with line mode only hosts.

When operating in line mode, tn3270 emulates a DEC VT52 terminal. Notes: • All versions of tn3270 X support the original 3270 extensions to telnet. The newer tn3270e protocol is supported as an experimental addition to version 3.4.0. • Tn3270 may be used with hosts which support IBM 5250 terminals. However, not all 5250 functions will be available. Which Macintosh operating systems are supported?

The latest version of tn3270 X, 3.4.0, is supported on OS X 10.3.9 and later, including macOS 10.12 Sierra. Older versions of tn3270 X are available for use with OS X 10.1.5 and later. The Classic version of tn3270, 2.5b5, is compatible with older MacOS versions.

Does tn3270 support Intel-based Macs? Yes, the latest version of tn3270 X, 3.4.0 is a 'universal' version which will run natively on both PowerPC and Intel machines.

Version 3.4.0 is an update to version 3.3 that adds support for OS X 10.9 Mavericks and later versions of OS X. Currently, it has also been tested successfully with OS X 10.10 Yosemite, OS X 10.11 El Capitan, and macOS 10.12 Sierra. Besides supporting the latest versions of OS X, it also includes experiment support for the tn3270e protocol and for client SSL certificates.

See the release notes for more information. • OS X Version 3.4.0, November 9, 2013, 2.0 MB (for OS X 10.3.9 and later) Download Previous Versions of tn3270 • OS X Version 3.3b6, May 13, 2011, 2.0 MB (for OS X 10.3.9 through OS X 10.8.5) Disk image revision of February 8, 2013 with added code signatures. • OS X Version 3.2.4, July 24, 2006, 1.7 MB (for OS X 10.2.8 through OS X 10.6.8) • OS X Version 3.1.7, May 1, 2006, 1.7 MB (for OS X 10.1.5) • Classic Version 2.5b5, March 13, 1996, 777 KB (for MacOS versions before 10.1) Read the Latest tn3270 Release Notes tn3270 X 3.4.0 Release Notes, November 9, 2013 Archives for tn3270 The contains current and older versions of tn3270, source code for the Classic version, and other tn3270-related files. Source code for tn3270 X is not currently included in the archives, but is available from the author upon request.

A tn3270 mailing list, macintosh-tn3270, is available for discussing tn3270. It is also used for announcements of new test and final releases.