Comtech EF Data SDM-300A - Manual (Page 159)

SDM-300A Satellite Modem Revision 6
Front Panel Operation MN/SDM300A.IOM
5–65
SELECT:
STORED FLTS/ALMS
STORED FLTS/ALMS STORED FLTS/ALMS
MODULATOR
DEMODULATOR
TX INTERFACE
RX INTERFACE
COMMON
BACKWARD ALARMS
UNAVAL SECONDS
CLEAR
Figure 5-10. Functional Select: Stored Ftls/Alms Menu Tree
5.4.4 FUNCTION SELECT:STORED FLTS/ALMS
FUNCTION SELECT
STORED FLTS/ALMS
Press <ENTER > to review or edit the following sub-menus.
The modem stores the first 10 (Flt0 through Flt9) occurrences of fault status changes in the
applicable major fault category.
Each fault status change is stored with the time and date of the occurrence of the fault. Stored
faults may be viewed by entering the stored faults level from the Select menu. Refer to Faults
and Alarms menus for fault explanations. UNAVAL SECONDS fault information.
Stored faults are not maintained through controller power-on reset cycle. However, the last
known time is maintained in nonvolatile Random Access Memory (RAM). On power-up, a
common equipment fault is logged (Flt0) with that last known time and date. Also on power-up,
an additional common equipment fault is logged (Flt1) to indicate the power-up time and date.
The power-down and power-up times are logged as common equipment fault 0 and common
equipment fault 1, respectively.
On entering the stored faults level, press [
← ] or [ → ] to move between the fault groups and the
“Clear Stored Faults?” selections. The time and date of the first stored fault status (Flt0) for the
selected group will be displayed alternately on line 2 of the display. Press [
↑ ] or [ ↓ ] to cycle
through the selected group’s stored fault status (Flt0 through Flt9). To display the fault status
associated with the displayed time and date, press [ENTER]. To identify the fault, press [
← ] or
[ → ] to move the flashing cursor. To clear the currently logged stored faults, press [ENTER]
when the “Clear Stored Faults/Yes?” selection is displayed.
Note: Faults are stored in time sequence, with the oldest fault status change stored in Flt0, and
the most recent in Flt9. Only the first 10 fault status changes are stored. All stored faults, which
have not been used, indicate “No Fault” on the display.