IBM 3270 Operator's Guide

3278 Quick Reference
Switches, Controls, and Lights
light 2
light1 ~
~
On/Off (
light 3 ~
1/0 I SWitch-1l~ ~
~
4 (A,a/A) Switch
I Dual/ Mono Case
6 '1 - NormalfTest Switch
!f
l ~~~~~Ie Alarm
~meControl
fit" . Security Keylock
f\ Contrast Control
.J Brightness Control
~\--=-~---------f
-----------------------
Operator Information
Area
Operator Information Area Layout
Shifts and Modes
Readiness
and
Do Not Enter
Reminders
Programmed Symbols Selection
System Connection
(Input Inhibited)
Highlighting
Operator I nformation Area Symbols and Messages
Note: For a 3278 not attached to a 3274 or to a 3276, these symbols and
messages and/or their meanings may be different from those described here.
Refer to the appropriate appendix
for a description of these differences.
• Readiness and System Connection Symbols
Location 1
H1and~ -
Means
the 3274 ( 111 ) or 3276 ( ~ ) Control Unit is working (ready).
Printer Status
Location 2
Location 3
l1andA-
I
Means the control unit is connected (online) to the host system under rules A ( ..a ) or rules B ( ]. 'j,
Your display station is working with your job (application program).
Location 3
Location 3
Locations 3-6
2-2
00
~
TEST
Your display station is connected to the s.ystem operator (control program).
Your display station is connected to the host system but is not connected to your application
program or the control program.
Your display station is in Test Mode.

IBM 3270 Specifications

General

Brand	IBM
Model	3270
Category	Desktop
Language	English