Cisco Model D-PCG1000 PowerKEY CAS Gateway Maintenance Manual
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QAM Modulator Front Panel LCD Alarm Messages
4019476 Rev C
53
QAM Modulator Front Panel LCD Alarm Messages
The following table lists alarm messages displayed on the front panel LCD of a QAM
modulator, the default level of severity, a probable cause for the alarm, and
suggestions for correcting the alarm condition. The LCD descriptions for each alarm
are arranged in alphabetical order. The probable causes and check and correct
procedures are arranged in order from the least to the most complicated.
LCD Display
Severity
Probable Cause
Check and Correct
24 volt supply
low
low
Minor
The 24 V DC power supply is
out of specification but has not
failed
out of specification but has not
failed
1
Check the power connections for
loose connections or defective wires;
then, tighten any loose connections,
and replace any defective power
connections
loose connections or defective wires;
then, tighten any loose connections,
and replace any defective power
connections
2
Check the voltage levels at the power
outlet to verify that the levels are
correct
outlet to verify that the levels are
correct
3
Contact Cisco Services
Continuity
Count Error
Count Error
Minor
MPEG continuity error counter;
one or more MPEG packets
have been dropped
one or more MPEG packets
have been dropped
1
Check one or more upstream devices
connected to the input ports
connected to the input ports
2
Contact Cisco Services
Craft event
change
change
Minor
QAM device settings were
viewed or changed from the
craft port
viewed or changed from the
craft port
Verify that all services are still functioning
correctly
correctly
Errored MPEG
Packets
Packets
Minor
Error occurred in the header of
MPEG packets as they arrived
at the indicated Input port
MPEG packets as they arrived
at the indicated Input port
Contact Cisco Services
Exceeded Max
Temp
Temp
Minor
The internal temperature of the
QAM modulator exceeded
70ºC (158ºF)
QAM modulator exceeded
70ºC (158ºF)
1
Check and clear any obstructions
from the vents
from the vents
2
Check and repair or replace the
heating/cooling equipment in the
room
heating/cooling equipment in the
room
3
Check and repair or replace the fan