Comtech EF Data CDM-750 - Manual (Page 123)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Front Panel Operation MN-CDM750
5–45
5.2.4 SELECT: Monitor
Monitor: Live-Alarms Stored-Events ACM
Rx-Params CnC Stats Buffer (
34)
Use the W X 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 Unit=None
Alarms Rx=Demod Lock Tx=None
( v)
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 ST arrow keys:
Live BUC=None
Alarms LNB=None
( v)
The highest priority alarm currently active for each of the alarm types is as follows:
Type Alarm State
Unit
MainPs X.X
Main Board Power Supply Fault
(3.3V, 1.5V, 1.2V, 1.8V, 1.9V, 2.5V, 1.25V)
MdmBdPs X.X
Modem Board Power Supply Fault
(5.5V, 3.8V, 2.3V, 3.3V, 1.8V, 1.2V)
Pwr Cal Transmit power is not factory calibrated. Contact factory.
FPGA Load An FPGA could not be configured.
Ref Unlock Unit could not lock to external reference clock input.
Unit Temp Unit has exceeded operating temperature.
Unit Fault A general unit fault.
Tx
(Transmit)
Input Data
For enabled optional synchronous interfaces this alarm indicates a
problem with input data. Not applicable to Ethernet Interfaces.
Tx PLL Transmit Phase-Lock Loop fault.
Rx
(Receive)
Demod Lock Demodulator is not locked to a signal.
AGC Alarm Receive Power Level has tripped AGC alarm point.
CnC Lock Carrier-in-Carrier is enabled but not locked.
OutputData
For enabled optional synchronous interfaces this alarm indicates a
problem with output data. Not applicable to Ethernet Interfaces.
EsNo Receive EsNo is below configured alarm point.
Rx PLL Receive Phase-Lock Loop fault.