1 minor rx alarms – Comtech EF Data DMD-2050E User Manual
Page 167
DMD2050E Univeral Satellite Modem
Maintenance and Troubleshooting
MN-DMD2050E Revision 2
6–5
Alarm
Description
Status
TPC CONFLICT CHK
Indicates that the TPC parameters are not configured correctly.
(only visible when TPC enabled)
{Pass/Fail,
Unmasked/Masked}
6.3.3.1
Minor Rx Alarms
Alarm
Description
Status
BUFF UNDERFLOW
A Doppler Buffer underflow occurred.
{Pass/Fail,
Unmasked/Masked}
BUFF NEAR EMPTY
The Doppler Buffer is about to underflow.
{Pass/Fail,
Unmasked/Masked}
BUFF NEAR FULL
The Doppler Buffer is about to overflow.
{Pass/Fail,
Unmasked/Masked}
BUFF OVERFLOW
A Doppler Buffer overflow occurred.
{Pass/Fail,
Unmasked/Masked}
RX DATA ACTIVITY
There is no Rx Data activity. For the Ethernet Interface, no
Ethernet port is active (no cable is plugged in).
{Pass/Fail,
Unmasked/Masked}
SAT AIS
AIS is detected in the receive satellite data stream.
{Pass/Fail,
Unmasked/Masked}
DnI FRAME LOCK
Drop/insert data is frame locked.
{Pass/Fail,
Unmasked/Masked}
DnI M-FRAME LOCK
Drop/insert data has multiframe lock.
{Pass/Fail,
Unmasked/Masked}
INSERT CRC
The Circular Redundancy Check is passing in PCM-30C and
PCM-31C Modes.
{Pass/Fail,
Unmasked/Masked}
T1/E1 SIGNALING
The T1/E1 Signal is not locked.
{Pass/Fail,
Unmasked/Masked}
IFEC LOCK
The Inner Codec is not locked.
{Pass/Fail,
Unmasked/Masked}
OFEC LOCK
The Reed-Solomon Decoder is not locked.
{Pass/Fail,
Unmasked/Masked}
INTERLEAVER
The Reed-Solomon Interleaver is not synchronized.
{Pass/Fail,
Unmasked/Masked}
RS UNCORR, WORD
Indicates status of the Reed-Solomon uncoded word fault.
{Pass/Fail,
Unmasked/Masked}
LDPC IFEC LOCK
Indicates that the Framing Unit is unable to find the expected
framing pattern.
{Pass/Fail,
Unmasked/Masked}
EBNO (dB)
The Eb/No is outside of limits.
{Pass/Fail,
Unmasked/Masked}