IBM 3174 Reference Guide

Using Your ASCII Terminal
You can return to the Connection Menu by doing the following:
• Ifyou are connected to an IBM host, use the Connection Menu key sequence
which is the extension mode sequence followed by m. For example, on an IBM
3161,
you press ALT L m. On a Lear Siegler ADM 5, you press ESC B m.
See the keyboard maps in Appendix A for the appropriate Extension Mode
sequence for your keyboard.
• Ifyou are connected to an ASCII host, press ESC Backspace, or use BREAK to
disconnect from the ASCII host (providing your host recognizes BREAK as a
disconnect).
Using Your ASCII Terminal
When you use your ASCII terminal as a 3270 terminal, it appears to the host as a
3270 terminal with full-screen edit capabilities. In this mode, you can use your
terminal's keyboard to enter all 3270 characters and to perform the 3270 functions
listed below:
ATTN
Backtab
Change Screen
Clear
Cursor Left
Cursor Right
Cursor Up
Cursor Down
Cursor Fast Left
Cursor Fast Right
CURSR SEL
Delete
DEV CNCL
DUP
Enter
Erase EOF
Erase Input
Extension Mode
Field Mark
Home
IDENT
Insert
New Line
PA1, PA2, PA3
PF1 - PF24
Print
Reset
SYS REQ
Tab
TEST
The following functions are also provided:
• Break
• Refresh
• Resume Print
• Status On/Off
• Suspend Print.
Each of these functions is described in this chapter. Appendix A, "Keyboard Maps
for ASCII Terminals Used as 3270 Terminals" on page A-40, contains the key
sequences that you should use for your terminal to request these functions. For
example, on many terminals, pressing ESC 1 invokes the PF1 function.
The Display image
The screen of your terminal shows you a display image. An example of a display
image appears in Figure 3-2. The format of this image varies, depending on the
application program you are using. The image might contain areas that you can
use to enter data to be processed by the application program. The image might
also contain areas that are used only to display information to you. Both of these
areas are called fields.
3-6 3174 Establishment Controller Terminal User's Reference for Expanded Functions

IBM 3174 Specifications

General

Brand	IBM
Model	3174
Category	Controller
Language	English