Select: Monitor; Monitor: Live-Alarms - Comtech EF Data CDM-750 Installation And Operation Manual

CDM-750 Advanced High-Speed Trunking Modem
Front Panel Operation

5.2.4 SELECT: Monitor

Monitor: Live-Alarms

Rx-Params
Use the arrow keys to select Live‐Alarms, Stored‐Events, ACM, Rx‐Params, CnC, or StatsP,
and then press ENTER
5.2.4.1 Monitor: Live-Alarms
Live
Alarms
An example of an Alarm screen is shown here. Six alarm types are available between two
screens. Note the arrows: Additional information is available by pressing the
Live
Alarms
The highest priority alarm currently active for each of the alarm types is as follows:
Type
Unit
Tx
(Transmit)
Rx
(Receive)
CnC Stats
.
Unit=None
Rx=Demod Lock
BUC=None
LNB=None
State
Alarm
Main Board Power Supply Fault
MainPs X.X
(3.3V, 1.5V, 1.2V, 1.8V, 1.9V, 2.5V, 1.25V)
Modem Board Power Supply Fault
MdmBdPs X.X
(5.5V, 3.8V, 2.3V, 3.3V, 1.8V, 1.2V)
Transmit power is not factory calibrated. Contact factory.
Pwr Cal
An FPGA could not be configured.
FPGA Load
Unit could not lock to external reference clock input.
Ref Unlock
Unit has exceeded operating temperature.
Unit Temp
Unit Fault A general unit fault.
For enabled optional synchronous interfaces this alarm indicates a
Input Data
problem with input data. Not applicable to Ethernet Interfaces.
Transmit Phase-Lock Loop fault.
Tx PLL
Demodulator is not locked to a signal.
Demod Lock
Receive Power Level has tripped AGC alarm point.
AGC Alarm
CnC Lock Carrier-in-Carrier is enabled but not locked.
For enabled optional synchronous interfaces this alarm indicates a
OutputData
problem with output data. Not applicable to Ethernet Interfaces.
Receive EsNo is below configured alarm point.
EsNo
Receive Phase-Lock Loop fault.
Rx PLL
Stored-Events ACM
Buffer
Tx=None
5–45
Revision 2
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