Comtech EF Data CDM-570A - Manual (Page 145)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
Front Panel Operation Revision 2
6–41
6.3.3 SELECT: Monitor
MONITOR: Alarms Rx ACM
Event Stats AUPC CnC ODU
Use the ◄ ► arrow keys to select a parameter (ODU is available only with the CDM-570AL).
Press ENTER.
6.3.3.1 MONITOR: Alarms
IMPORTANT NOTE – The CDM/R-570ALuses a system of Fault Prioritization, where the
modem will display only the highest priority fault in a designated category. This cuts
down significantly on unwanted and irrelevant fault reporting.
For example, if the demodulator is unlocked, then it is irrelevant if there are other
Rx faults present. However, if the demodulator then locks while a lower-priority
fault is present, then the modem will display that fault. This also applies for faults
reported via remote control.
For CDM/R-570ALunits with ODUs, see Chapter 10. CDM-570A/570AL ODU
(TRANSCEIVER, BUC, LNB) M&C OPERATIONS for details on selecting this submenu
and the listing of prioritized ODU faults.
Live Alarms:Unit Receive
Transmit ODU (◄ ►,ENTER)
For 70/140 MHz or L-Band modems without ODUs, use the ◄ ► arrow keys to select Unit,
Receive, or Transmit. Press ENTER.
LIST OF PRIORITIZED FAULTS
Unit Faults Tx Traffic Status Rx Traffic Status
1) Power supply fault, +5 volts
2) Power supply fault, +12 volts
3) Power supply fault, –5 volts
4) Power supply fault, –12 volts
5) Tx synthesizer lock
6) Rx 1
st LO synthesizer lock
7) Rx 2 nd LO synthesizer lock
8) Reference PLL lock
9) PaP Heartbeat
1) No clock from terrestrial interface
2) Tx PaP ETH Link Down
3) Tx FIFO slip
4) Loss of Signal on G.703 interface
5) Loss of External Reference
6) AUPC upper limit reached
7) AIS detected on incoming data
(from terrestrial direction)
8) Bipolar violation on G.703 interface
9) BUC Alarm (if attached)
1) Demodulator unlocked
2) AGC Alarm - signal out of range
3) APC Frame sync alarm
4) EDMAC Frame sync alarm
5) APC Band mismatch alarm
6) Buffer Underflow
6) Buffer Overflow
7) E
b
/N
0
alarm
8) LNB Alarm (if attached)
9) AIS detected on incoming data
(from satellite direction)