Comtech-ef-data DD240XR Rev Е Bedienungsanleitung Seite 35

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DD240XR High-Speed Digital Demodulator User Interfaces
MN-DD240XR Rev. E 4-15
DD240XR only displays buffer status and alarm prompts for terrestrial interfaces that
support Doppler buffering.
DATA ACTIVITY: {Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when data
is not detected in the signal.
BUFF UNDERFLOW: {Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable the alarm which
occurs when the signal buffer completely empties and
resets. This menu is only available if the terrestrial
interface is buffer capable.
BUFF NEAR EMPTY: {Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable the alarm which
occurs when the signal buffer reaches a near empty
value of 10%. This menu is only available if the
terrestrial interface is buffer capable.
BUFF NEAR FULL: {Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable the alarm which
occurs when the signal buffer reaches a near full value of
90%. This menu is only available if the terrestrial
interface is buffer capable.
BUFF OVERLFOW: {Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable the alarm which
occurs when the signal buffer completely fills and resets.
This menu is only available if the terrestrial interface is
buffer capable.
EXC CLOCK: {Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable the alarm which
occurs when the signal buffer external clock is no longer
detected. This menu is only available if the terrestrial
interface is buffer capable.
EXC PLL LOCK: {Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable the alarm which
occurs when the signal buffer external clock being routed
to the terrestrial interface PLL is no longer detected.
This menu is only available if the terrestrial interface is
buffer capable.
DEMOD LOCK: {Pass/Fail, Unmasked/Masked}
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