Cisco Model D-PCG1000 PowerKEY CAS Gateway Maintenance Manual
Chapter 6 Troubleshoot Front Panel Alarms
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4019476 Rev B
LCD Display
Severity
Probable Cause
Check and Correct
Loss of input
signal
signal
Major
The carrier detect bit for the
installed digital headend
expansion interface (DHEI),
the single wire interface
(SWIF), or the digital video
broadcasting asynchronous
serial interface (DVB ASI) is
not active. None of the bits
indicating one of the three
input ports (DHEI, SWIF, or
DVB ASI) is active
installed digital headend
expansion interface (DHEI),
the single wire interface
(SWIF), or the digital video
broadcasting asynchronous
serial interface (DVB ASI) is
not active. None of the bits
indicating one of the three
input ports (DHEI, SWIF, or
DVB ASI) is active
Note: This alarm also appears
and immediately clears when
the QAM modulator is powered
off and then powered on from
the back panel. No action is
required in this instance.
and immediately clears when
the QAM modulator is powered
off and then powered on from
the back panel. No action is
required in this instance.
1
Check for loose or broken cable
connections to the QAM
connections to the QAM
2
Check that outputs of upstream
devices are active
devices are active
3
Run the Doctor Report to
troubleshoot any network connectivity
issues
troubleshoot any network connectivity
issues
4
Contact Cisco Services
Mod ASIC init
failed
failed
Major
The application-specific
integrated circuit (ASIC) chip
failed to initialize
integrated circuit (ASIC) chip
failed to initialize
1
Power down and then power up the
QAM modulator using the on/off
rocker-type switch on the back panel,
or reset the QAM modulator from the
DNCS
QAM modulator using the on/off
rocker-type switch on the back panel,
or reset the QAM modulator from the
DNCS
2
Contact Cisco Services
NVM failed
Minor
The non-volatile RAM
(NVRAM) self-test failed
(NVRAM) self-test failed
1
Replace the QAM modulator if you
have a spare, or contact your Cisco
Program Manager to arrange for
replacing or repairing the QAM
modulator
have a spare, or contact your Cisco
Program Manager to arrange for
replacing or repairing the QAM
modulator
2
Contact Cisco Services
Packets were
dumped
dumped
Minor
FIFO overflow occurred and
packet data has been lost. This
indicates one or more of the
following conditions:
packet data has been lost. This
indicates one or more of the
following conditions:
Too many sessions
defined from the DNCS for
the QAM device
defined from the DNCS for
the QAM device
The data rate as defined
form the DNCS for the
QAM device session is too
low, which also means that
the data rate of the ASI
input to the QAM device is
too high
form the DNCS for the
QAM device session is too
low, which also means that
the data rate of the ASI
input to the QAM device is
too high
Hardware problem
Incorrect modulation mode
1
Reduce the data rate of input to the
QAM device by doing the following:
QAM device by doing the following:
Reducing amount of incoming
data
data
Reducing amount of data added
to stream
to stream
Increasing modulation mode
2
Run the Doctor Report to
troubleshoot connectivity issues
troubleshoot connectivity issues
3
Contact Cisco Services