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7
LEDs and
Front Access
Display
Basic Operations
Computers may be powered up one at a time or all at once. Operator intervention
is not necessary during booting. With the front access model, a computer may
be selected at the local console by pressing the push-button for that computer
channel. The channel letter will then be shown on the alphanumeric display.
All other user consoles select computer channels through a keyboard sequence
described on the next page. The indicator lights (LEDs) over the push-buttons
will change to reflect the status of each attached computer or secondary
console. See the tables below.
Computer state
Connected
Powered
No
Yes
Yes
Yes
Yes
Secondary console state
Not installed
Installed
Installed - in Command Mode
Computer state
Connected
Powered
No
Yes
Yes
Yes
Yes
Secondary console state
Not installed
Installed
Installed - in Command Mode
Front Access Model
Selected
No
No
No
No
Yes
No
No
Yes
Yes
Yes
Rear Access Model
Selected
No
No
No
No
Yes
No
No
Yes
Yes
Yes
75
Channel LED state
Off
Off
On, Low intensity
Blinking: On/Off (1HZ)
Blinking: On/Low intensity (1HZ)
Off
On, Full intensity
Blinking: On/Off (2HZ)
Channel LED state
Amber
Green
Off
Off
Off
Off
Off
On
On
Off
On
On
Off
On
Blinking
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