Common Equipment Alarms; Latched Alarms - Comtech EF Data DMD-2050E Installation And Operation Manual

DMD2050E Univeral Satellite Modem
Alarms are grouped into transmit and receive alarms. Transmit and receive alarms are completely
independent of each other.

6.4.2 Common Equipment Alarms

Common equipment alarms occur when the unit has problems that affect both transmit and
receive operations. Most common equipment alarms occur when there is a hardware failure in
the unit, such as a malfunctioning power supply.
External reference and external clock alarms occur when a unit has a configuration problem, not
a hardware failure.
6.4.3

Latched Alarms

Latched alarms are used for intermittent failures. If a fault occurs, the fault indication is "latched"
even if the alarm goes away.
After the unit is configured and operating correctly, clear any latched alarms.
CLEAR LATCHED ((ENTER))
These alarms are latched to catch intermittent failures:
TX MAJOR (menu)
FPGA CFG
DSP CFG
SCT CLOCK PLL
SYM CLOCK PLL
LB SYNTH PLL
IF SYNTH PLL
ETHERNET WAN
TRANSEC NOT RDY
RX MAJOR (menu)
FPGA CFG
DSP CFG
SIGNAL LOCK
INPUT LVL THRESH
FRAME LOCK
MN-DMD2050E Revision 2
Press ENTER to reset the latched alarms.
{Pass/Fail} TX MINOR (menu)
TERR CLK ACT
TERR DATA ACT
TX TERR AIS
DnI FRAME LOCK
DnI M-FRAME LOCK
DROP CRC
TX DVB FRM LOCK
TX CL,SRC FALLBK
TPC CONFLICT CHK
{Pass/Fail} RX MINOR (menu)
BUFF UNDERFLOW
BUFF NEAR EMPTY
BUFF NEAR FULL
BUFF OVERFLOW
RX DATA ACTIVITY
Maintenance and Troubleshooting
{Pass/Fail}
{Pass/Fail}
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