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9-20 9030/40
Diagrams
Motherboard Signal Definitions (Continued)
Signal
Description
STl
Stack self-test from slot I.
ST2
Stack self-test from slot 2.
ST3
Stack self-test from slot 3.
ST4
Stack self-test from slot 4.
ST5
Stack self-test from slot 5.
ST6
Stack self-test from slot 6.
ST7
Stack self-test from slot 7.
ST8
Stack self-test from slot 8.
ST9
Stack self-test from slot 9.
STlO
Stack self-test from slot 10.
STU
Stack self-test from slot II.
STl2
Stack self-test from slot 12.
STACKTEMP
Stack temperature indicator.
TON
(Not used)
USI
Open trace.
US2
Open trace.
US4
POLL ANDed with NSELFf.
UPSI
Uninterruptible power supply.
UPS2
Un interruptible power supply.
I/O Backplane Connectors
Designator
Connecting Assembly
PO
110 Card (Slot/Select Code
0)
PI
110 Card (Slot/Select Code 1)
P2
110 Card (Slot/Select Code 2)
P3
110 Card (Slot/Select Code 3)
P4
110 Card (Slot/Select Code 4)
P5
I/O Card (Slot/Select Code 5)
P6
I/O Card (Slot/Select Code 6)
J7
Motherboard (Connector Pl1)
P8
110 Door Interlock Switch
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