Comtech EF Data KST-2000A/B - Manual (Page 83)

Ku-Band Satellite Transceiver Revision 9
Fault Indication and Isolation MN/KST2000AB.IOM
4–3
Table 4-1. KST-2000A/B Fault Tree
R
F
O
U
T
P
U
T
O
F
F
T
X
R
F
L
E
D
O
F
F
T
X
R
F
L
E
D
S
O
L
I
D
T
X
R
F
L
E
D
F
L
A
S
H
I
N
G
S
U
M
M
A
R
Y
F
A
U
L
T
L
E
D
S
U
M
M
A
R
Y
F
A
U
L
T
R
E
L
A
Y
U
L
F
A
U
L
T
R
E
L
A
Y
D
L
F
A
U
L
T
R
E
L
A
Y
COMMON EQUIPMENT FAULTS
(1) (2) (3)
M&C MODULE X X
-7 VOLT POWER SUPPLY X X
+7 VOLT POWER SUPPLY X X
+12 VOLT POWER SUPPLY X X
+17 VOLT POWER SUPPLY X X
TX REDUNDANCY SWITCH X2 X2
RX REDUNDANCY SWITCH X2 X2
IF REDUNDANCY SWITCH X2 X2
REDUNDANCY FAULT LINE CABLE X2 X2
AGC FAULTS
EXCESSIVE INPUT POWER
INSUFFICIENT INPUT POWER
AGC LOOP CONVERGE
LNA FAULTS
LNA MODULE FAULT X1 X1 X1
REFERENCE FAULTS
EXTERNAL 10MHz LOCK DETECT X X
EXTERNAL PHASE NOISE X X
EXTERNAL RANGE X X
72MHz LOCK DETECT X X
OSCILLATOR WARM/COLD X
UC FAULTS
UC MODULE X X X X X
S-BAND SYNTHESIZER LOCK DETECT X X X X X
KU BAND SYNTHESIZER LOCK DETECT X X X X X
LATCHED S BAND SYNTH. LOCK DETECT
LATCHED KU BAND SYNTH. LOCK
DETECT
INTER-PROCESSOR COMMUNICATIONS X X X X X
DC FAULTS
DC MODULE X X X
L-BAND SYNTHESIZER LOCK DETECT X X X
KU BAND SYNTHESIZER LOCK DETECT X X X
LATCHED L BAND SYNTH. LOCK DETECT
LATCHED KU BAND SYNTH. LOCK
DETECT
INTER-PROCESSOR COMMUNICATIONS X X X