On 20 December 2015 at 01:28, <[email protected]> wrote: > That is because IBM doesn't use telnet or serial terminals. They use the > 3270 series terminals and the tn3270 protocol is used by terminal emulators. Yes and no. Yes, the majority of time you use a tn3270 emulator to pretend to be a 3278 or 3279 of some sort; as either an operator console, or as a TSO terminal.
However, in the IBM mainframe world, there were the "typewriter" terminals, like the 1052-7 and 3215. Also, let's not forget the IBM 2703 Communications Control unit; which had the option of using the IBM Telegraph Terminal Control Type II; which provides a way for Model 33 and Model 35 TWX terminals to connect to a mainframe. Hercules emulates all of those (the 1052-7, 3215, and 2703 with TELE2); the way to connect to those are via "plain" telnet. The 1052-7 and 3215 emulations are there for being console terminals (and you can specify 1052-C or 3215-C to have those consoles appear in the Hercules interface itself); while the 2703 with TELE2 is relatively new and let's you connect to TSO. > There are other 3270 emulators for Windows but as far as I know they are > all proprietary and sell for money. > Yup, and that's why I already use x3270; which is actually a pretty nice emulator. Bringing this conversation back to the world of SIMH (sorta). From IBM manual GC23-0002-0, while doing an RMT generation for JES2, you can have the RMT generation process produce object decks for IBM 1130 and IBM System/3 systems that make them operate as BSC connected RJE stations. This seems like a pretty interesting application for SIMH. It would require the implementation of the BSCA device for the System/3, in a way that would compatibly operate with the Hercules 2703 BSC emulation, and similar creation of a sync modem device on the 1130 simulator. The required hardware for the remote terminal program is: IBM System/3 Model 10 with the following selectable options: * 1442 Card Read Punch * 5203 Printer * 5424 Multi-Function Card Unit * 5471 Printer-Keyboard * 5475 Data Entry Keyboard IBM 1130 System with the following selectable options: * 1132 Printer * 1403 Printer * 1442 Card Read Punch * 1442 Card Punch * 2501 Card Reader * Standard Printer-Keyboard Both simulators already support the hardware needed, except the bisynch adapters. Cheers, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request. _______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
