
User Interfaces DMDVB20 LBST Satellite Modem
4-18 TM138 – Rev. 1.0
DM CFG {Pass/Fail, Unmasked/Masked}
Indicates a demodulator DVB-S/DVB-S2 FPGA
hardware 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.
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.
FORCED ALARM {DISABLED, ENABLED}
Allows user to enable a forced Rx summary alarm.
RX MINOR (menu)
BUFF UNDERFLOW {Pass/Fail, Unmasked/Masked}
Indicates that a Doppler Buffer underflow has occurred.
BUFF NEAR EMPTY {Pass/Fail, Unmasked/Masked}
Indicates that the Doppler Buffer is about to underflow.
BUFF NEAR FULL {Pass/Fail, Unmasked/Masked}
Indicates that the Doppler Buffer is about to overflow.
BUFF OVERFLOW {Pass/Fail, Unmasked/Masked}
Indicates that a Doppler Buffer overflow has occurred.
RX DATA ACTIVITY {Pass/Fail, Unmasked/Masked}
Indicates that there is no Rx Data activity.
IFEC LOCK {Pass/Fail, Unmasked/Masked}
Indicates that the Framing Unit is unable to find the
expected framing pattern.
EBNO (dB) {Pass/Fail, Unmasked/Masked}
Indicates that the Eb/No are outside of limits.
COMMON (menu)
TERR FPGA CFG {Pass/Fail, Unmasked/Masked}
Indicates an Interface Card FPGA configuration failure.
CODEC FPGA CFG {Pass/Fail, Unmasked/Masked}
Indicates Turbo Codec Card FPGA configuration failure.
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