Advanced 3270/SNA Option Guide
Chapter 1 - Advanced 3270/SNA Features
VINES supports two software packages that let you use PCs as terminals when connected to an IBM or other host computer that uses System Network Architecture (SNA). These are the 3270/SNA Option and the Advanced 3270/SNA Option.
This chapter describes:
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The elements of your SNA network that must be in place before you install the Advanced 3270/SNA Option. |
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The added features that the Advanced 3270/SNA Option provides. |
Before you can install the Advanced 3270/SNA Option, your server must meet the following requirements:
Your VINES server must be running VINES 4.0 or a later version. The VINES 3270/SNA Option must be installed on your server. You need either a serial communications card, with an available line, or an IBM Token-Ring card installed in your server.
Banyan sells two models of its serial communications card. The ICAmC card is compatible with the Micro Channel® bus structure. The ICA card is compatible with the AT bus. The installation of these cards is described in the VINES Serial Communications Guide.
Banyan supports three IBM Token-Ring cards:
- IBM Token-Ring Adapter
- IBM Token-Ring Adapter II
- IBM Token-Ring 16/4 Adapter
If your server has a serial communications card, either a synchronous modem or a null modem must be attached to the line that you plan to use for Advanced 3270/SNA. Your VINES network must have at least one workstation from which you can run the PATCH program.
Appendix C of this manual describes the full installation procedure for Advanced 3270/SNA. This appendix also tells you how to install Advanced 3270/SNA in a multilingual VINES Network.
A Summary of Advanced 3270/SNA Features
This section describes the added functionality of the Advanced 3270/SNA option.
Table 1-1 is a side-by-side comparison of the VINES 3270/SNA Option and the VINES Advanced 3270/SNA Option. These added functions include additional LU sessions, display types, programming interfaces, integrated file transfer utilities, and windowing capability.
| Features | 3270/SNA | Advanced 3270/SNA |
| 3270 Display Types | 2 | 2, 3, 4, 5 |
| 3270 Internationalization Support (a) | Included | Included |
| 3270 Keyboard remapping | Yes | Yes |
| 96 LU Support on 1 - 3 services (b) | Yes | Yes |
| Color support and remapping | Yes | Yes |
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Connection Type Serial Token Ring (c) |
Yes Yes |
Yes Yes |
| File Transfer | Packaged Separately | Integrated |
| Light Pen Compatibility | No | Yes |
| Local Print Screen | Yes | Yes |
| Number of Concurrent LU Sessions | 4 | 5 |
| Physical Location Security (c) | Yes | Yes |
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Printers SCS (Type 1) 3270 (Type 3) |
Yes Yes |
Yes Yes |
| Programming Interfaces (d) | P12 |
P12 HLLAPI LLAPI |
| Sessions must use same service? | Yes | No |
| Windowing | No | Yes |
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Notes: (a) Advanced 3270/SNA includes country-specific text files. (b) Depends on server platform and specific option purchased. (c) VINES 4.0 is required for these features. (d) 3270/SNA and Advanced 3270/SNA support different versions of the PI2 interface. |
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Five Concurrent Logical Unit Sessions
The 3270/SNA Option supports up to four concurrent logical units. Advanced 3270/SNA supports up to five concurrent LU-to-LU sessions per workstation. These sessions can be in any combination of display and printer sessions.
Refer to Chapter 2 of this manual for more information on configuring LU sessions.
The 3270/SNA Option supports only 3270 display type display type 2. Advanced 3270/SNA supports display types 2, 3, 4, and 5.
Since the display areas of types 3, 4 and 5 are larger than the standard PC display (80 X 25), you must use the Advanced 3270/SNA scroll feature to see the entire display screen unless you have a special graphics adapter.
Chapter 2 of this manual shows you how to configure different display types, and outlines the special video requirements of each display type.
The 3270/SNA Option supports the 3270/FTS File Transfer Utility. Advanced 3270/SNA has its own file transfer utilities called SNA_SND and SNA_RCV.
Refer to Chapter 6 of this manual for a full discussion of the Advanced 3270/SNA file transfer utilities.
Advanced 3270/SNA adds support for the industry-standard High Level Language Application Programming Interface (HLLAPI) and Low Level Application Programming Interface (LLAPI). Applications written to use those interfaces can now be run from your VINES workstation.
Refer to Chapter 7 on Application Programming Interfaces for more information.
The Advanced 3270/SNA LU Windows feature allows you to display up to five display Logical Units on one screen simultaneously.
Refer to Chapter 3 on LU Windows for more information.
