Technical data

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