3704/3705 Control Program Planning Considerations for the 3704/3705 Control Program When planning for the installation of IBM 3704 and 3705 Communications
Controllers, be sure that you are familiar with device characteristics,
have the the appropriate publications and support package, and have a VM/370 system that supports the 3704/3705. Related Publications
The In.troductiQn to 1he 11.H1 lIQ.!!' and JIO 5 tiQn.§ Con!rollek:§.L Order No. GA27-3051, describes the general functions of the 3704 and 3705. It is a prerequisite publications for generating a 3704/3705
control program under VM/370. If you are installing Version 4 of the Network Control Program/VS, the 37Q! End 1105 Cont!Ql Eng !!tilities ,gnd 1f2k: gnd USe!.§LL Order No. GC30-3007, is a corequisite
publication. If you are installing Version 4 of the Network Control Program/VS, the 1104 Eng £on!rol ang Utilitie.§.L Referen£g lfok: OSLVS ,gng Order No. GC20-3008, is a corequisite
publication. You must refer to one of these publications in order to
code the 3704/3705 control program generation macros. Throughout Part 4, these publications are referred to as the J1Q! gj!g lI05 gnd 3704 and 3705 Support Package
Before you can generate a 3704/3705 control program, you must have the
following OS/VS Network Control Program Support Package. This is the
only 3 7 04/3705 support package that contains the CMS file required for
generating and loading the 3704/3705 control program under VM/370. The
support package is: • IBM 3704/3705 Emulation Support and System Support Package (EP/VS SCP) for OS/VS (order No. 5744-AN1). VM/370 supports this package in
emulation mode only.
This package contains the following basic material: • A Program Directory • IBM 3704 and 3705 Ne1work Control Pr0.9:k:.M1LVS genera1ion and Qtilities, Guide and ManMl (fok: OS/VS gnd Order No. GC30-3007 -- or Part 4. Generating the 3704/3705 Control Program 293

3704/3 7 05 Control Program • IBM £ont£Q! Guide L Order No. GA27-3086. • 1]] 1705 £ont£ol Order No. GA27-3087. • Magnetic tape containing the macros and modules of the 3704/3705 control program and the OS/VS system support programs. VM/370 Support of the 3704 and 3705 The IBM 3704/3705 Communications Controllers can support: • Up to 352 low liu€s • Up to 60 medium speed synchronous lines • Line speeds from 45.2 baud to 56.0K baud • "odem capability within the 3704/3705 • Limited-distance "hard-wire" capability • 16K to 256K internal storage • Remote 3275, 3276, 3277 and 3278 terminals with optional 3284, 3286,
32 7 7, 3288 and 3279 printers (EP mode only) • Remote 2780 terminals (EP mode only)
1. Emulator Program (EP) Version 3.0. V"/370's support of the 3704/3705 does not include: • Remote 3704/3705 Communications Controllers E"ULATION PROGRA" (EP) WITH V"/370 The EP 3704/3705 control program under V"/370: • Emulates 2701, 2702, and 2703 operations • to a System/370 byte multiplexer channel • Supports up to 255 start-stop lines for 1050, 2741, and CPT-TWX (33/35) terminals • Supports up to 50 medium-speed synchronous lines for 3270 and 2780 terminals
294 IBM VM/370 Planning and System Generation Guide