Page of GC20-1801-10 As Updated March 3, 1980 by TNL GN25-0776 Introduction to the IBM 3704 and 3705 Communications Controllers The IBM 3704 and 3705 Communications Controllers are programmable units.
The Emulation program can be generated to execute in 3704/3705 storage.
The Emulation program (EP) permits existing teleprocessing systems,
including VM/370, that use the IBM 2701, 2702, or 2703 Transmission Control Units, the 2703 Compatible Communications Adapter of the 4331
processor, or the Integrated Communications Adapter (ICA) of the
System/370 Models 135, 135-3, and 138 to execute without change on the
3704/3705.
In this publication, the term "3704/3705 control program" refers to
the EP control program. VM/370 supports the: • IBM 3704 Communications Controller, Models 11-A4 • IBM 3705-1 Communications Ccntroller, Models A1-D8 • IBM 3705-11 Communications Controller, Models E1-H8
when attached to a VM/370 processor. Three terminals are supported: 1050, 2741, and CPT-TWX 33/35. The 3767 terminal (operating as a 2741)
is supported by lines in EP mode, and the 3101 display terminals are
supported as CPT-TWX 33/35.
The minimum required by an EP control program is 16K.
Part 4. Generating the 3704/3705 Control Program 291

March 3, 1980 292 IBM VM/370 Planning and System Generation Guide