Specifications

DMD20/20LBST Universal Satellite Modem User Interfaces
MN-DMD20-20LBST Revision 14 4–30
RX MAJOR (menu)
FPGA CFG {Pass/Fail, Unmasked/Masked}
Indicates a receive FPGA hardware failure.
DSP CFG {Pass/Fail, Unmasked/Masked}
Indicates a receive DSP failure.
SIGNAL LOCK {Pass/Fail, Unmasked/Masked}
Indicates that the demod is unable to lock to a signal.
INPUT LVL THRESH {Pass/Fail, Unmasked/Masked}
Indicates Rx signal level has fallen below input threshold.
FRAME LOCK {Pass/Fail, Unmasked/Masked}
Indicates that the Framing Unit is unable to find the expected
framing pattern.
MULTIFRAME LOCK {Pass/Fail, Unmasked/Masked}
This alarm will flash on during certain modem parameter
changes. A solid indication points toward a problem with the
incoming clock to the modem (SCTE).
LB SYNTH PLL {Pass/Fail, Unmasked/Masked}
Indicates that the Rx L-Band Synthesizer is not locked. This
alarm will flash on during certain modem parameter changes. A
solid indication points toward a configuration problem within the
modem.
IF SYNTH PLL {Pass/Fail, Unmasked/Masked}
Indicates that the Rx IF Synthesizer is not locked. This alarm will
flash on during certain modem parameter changes. A solid
indication points toward a configuration problem within the
modem.
LNB CURRENT {Pass/Fail, Unmasked/Masked}
Indicates that the LNB current has fallen outside of the threshold
limits.
LNB VOLTAGE {Pass/Fail, Unmasked/Masked}
Indicates that the LNB voltage has fallen outside of the threshold
limits.
ETHERNET WAN Indicates that the interface card is faulted and will not pass data
(displays only when the Ethernet Card is installed and the
Ethernet Interface is selected).
FORCED ALARM {DISABLED, ENABLED}
Allows user to enable a forced Rx summary alarm.