
DD240XR High-Speed Digital Demodulator User Interfaces
MN-DD240XR – Rev. E 4-17
LATCHED ALARMS (Menu):
This menu duplicates the Current Alarm Menu, but
displays Latched Alarms instead of Current Alarms.
RX MAJOR (Menu):
Status
SIGNAL LOCK: {Pass/Fail}
The Carrier Lock is currently or has alarmed since last
clearing.
SYNTH PLL: {Pass/Fail}
The On-Board Phase-Locked Loop is currently or has
alarmed since last clearing.
INPUT LEVEL: {Pass/Fail}
The Input Level is currently or has alarmed since last
clearing.
CLOCK ACTIVITY: {Pass/Fail}
CARRIER COMM: {Pass/Fail}
Communications have failed with the Internal Carrier
Control Subsystem since the last clearing.
DEMOD COMM: {Pass/Fail}
Communications have failed with the Internal
Demodulation Control Subsystem since last clearing.
FPGA CONFIG:
{Pass/Fail}
DJIT CFG: {Pass/Fail}
The DJIT FPGA is currently or has alarmed since last
clearing.
TERR INTFC CFG: {Pass/Fail}
The Terrestrial Card FPGA is currently or has alarmed
since last clearing.
RX MINOR (Menu):
Status
DATA ACTIVITY: {Pass/Fail}
The Rx Data is currently or has alarmed since last
clearing.
BUFF UNDERFLOW: {Pass/Fail}
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