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~-------
~
946261-9701
0
0
I.LI
I.LI
X
X
11..
11..
rt)
l-
I-
Z
Z
:J
:J
D
D
J4
J3
J1
J2
(A)137558A
Figure 4-2. Disk Designation Jumper
LED lighted but not bright - Clock running normally.
LED bright - Clock always on. Possible faulty clock circuit.
•
BUSY -
The BUSY LED, when lighted, indicates that the controller is servicing a
TILINE I/O reset, or executing a command, a master power reset, or a power failure
warning. When the BUSY LED is lighted, the controller cannot accept any commands.
•
INT - The INT LED lights to indicate when the disk controller is issuing a TILINE
interrupt.
4-8
Digital Systems Division
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