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Satellite Terminal System
Fault Indication and Isolation
HPA MODULE
BIAS VOLTAGE #1 - #9
-5 VOLT POWER SUPPLY
+9.75 VOLT POWER SUPPLY
INTER-PROCESSOR COMMUNICATIONS
Table 5-2. KST-2000L Fault Tree (Continued)
HPA FAULTS ( Adaptive Broadband)
Note
Fault/Alarm Relay
1
SUMMARY FAULT
2
UL FAULT
3
DL FAULT
X1
FAULTS IF NOT MASKED OFF
R
T
T
T
F
X
X
X
O
R
R
R
U
F
F
F
T
P
L
L
L
U
E
E
E
T
D
D
D
O
O
S
F
F
F
O
L
F
F
L
A
I
S
D
H
I
N
G
X1
X1
X1
X1
X1
X1
X1
X1
X1
X1
Legend
Test Points Connector/Pins
J2: a (NO), c (COM), b(NC)
J2: W (NO), V (COM), U (NC)
J2: Z (NO), Y (COM), X (NC)
N/A
5–4
MN/KST2000L.IOM
S
S
U
D
U
U
L
L
M
M
M
M
F
F
A
A
A
A
R
R
U
U
Y
Y
L
L
T
T
F
F
A
A
R
R
U
U
E
E
L
L
L
L
T
T
A
A
Y
Y
L
R
E
E
D
L
A
Y
X1
X1
X1
X1
X1
X1
X1
X1
X1
X1
X1
X1
X1
X1
X1
Revision 2
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