Feature And With The Encrypt/Decrypt Feature - IBM 3274 User Manual

Ref Description
D
On/Off switch:
m
=
On;
lQJ
=
Off.
fJ
On indicator: Indicates the 3274 is powered on.
D
IML (Initial Machine Load) pushbutton: Pressing and holding causes a
basic assurance test
to
run. When the pushbutton is released, 1M L
tests start. At completion, the machine is loaded.
iii
Alt IML Address switch:
• Position 1: Holding, while momentarily pressing the IML pushbutton,
bypasses the IML tests and loads the machine directly. Use only after
normal IML fails.
• Position 2: Holding, while pressing the IML pushbutton, causes
remote interface tests to ru n.
8 4 2 1 indicators: These light while the IML pushbutton is held.
During IML, they follow the test sequence. At completion, they all
go out. During operation, they indicate operational status.
III
Encrypt/Decrypt key switch: In the horizontal position, allows a new
master key code to be entered.
o
Encrypt/Decrypt battery: Maintains the master key code in the 3274
when power is off.
Figure 1-10 (Part 2 of 2). 3274 Model SIC or 61C Operator Panel with
the Digital Data Service (DDS) Adapter or
X.21 Feature and with the Encrypt/Decrypt
Feature
Section
1.
Operator Information
1-23