Comtech EF Data SDM-9000, Инструкция по установке и эксплуатации

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Maintenance SDM-9000 Satellite Modem
6–16 Rev. 4
Table 6-4. SDM-9000 Modem Fault Tree (Continued)
TX INTERFACE FAULTS
T
X
I
F
O
U
T
P
U
T
O
F
F
T
X
F
A
U
L
T
L
E
D
T
X
F
A
U
L
T
R
E
L
A
Y
(1)
R
X
F
A
U
L
T
L
E
D
R
X
F
A
U
L
T
R
E
L
A
Y
(2)
C
O
M
E
Q
F
A
U
L
T
L
E
D
C
O
M
E
Q
F
A
U
L
T
R
E
L
A
Y
(3)
T
X
A
L
A
R
M
L
E
D
T
X
A
L
A
R
M
R
E
L
A
Y
#
2
(4)
R
X
A
L
A
R
M
L
E
D
R
X
A
L
A
R
M
R
E
L
A
Y
#
3
(5)
D
E
F
E
R
R
E
D
M
A
I
N
A
L
A
R
M
(6)
T
X
A
I
S
R
X
A
I
S
TX DATA/AIS X X X X
TX CLK PLL X X X
TX CLK ACTIVITY X X X
PROGRAMMING X X X X
CONFIGURATION X X X X
RX INTERFACE FAULTS
BUFFER UNDERFLOW X X
BUFFER OVERFLOW X X
RX DATA/AIS X X X X
FRAME BER X X X
BUFFER CLK PLL X X X
BUFFER CLK ACT X X
DEMUX LOCK X X X
RX 2047 LOCK X X
BUFFER FULL X X
PROGRAMMING X X X
CONFIGURATION X X X
Legend
Test Note Fault/Alarm Relay Test Points Connector/Pins
1 TX FAULT J7/Pin 4 (N.O.), 5 (COM), 6 (N.C.) *
2 RX FAULT J7/Pin 7 (N.O.), 8 (COM), 9 (N.C.) *
3 COM EQ FAULT J7/Pin 1 (N.O.), 2 (COM), 3 (N.C.) *
4 TX ALARM #2 J10/Pin 4 (N.O.), 5 (COM), 6 (N.C.) *
5 RX ALARM #3 J10/Pin 7 (N.O.), 8 (COM), 9 (N.C.) *
6 DEF MAINT ALARM J8/Pin 17 **
* A connection between the common and N.O. contacts indicate no fault/alarm.
** Signal is open collector high impedance if faulted.