Minor Rx Alarms - Comtech EF Data DMD-2050E Installation And Operation Manual

DMD2050E Univeral Satellite Modem
Alarm
TPC CONFLICT CHK
6.3.3.1

Minor Rx Alarms

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