Alarm Type Description — Decoder

Alarm Type Description Action Default Settings
No decoder video
data
Indicates that there is a valid
connection, no video data
present. Usually accompanied by
"no source data stream" message
in the web interface.
Warning, reporting
No decoder mode No matching decoder mode for
the incoming stream.
Warning, reporting
No source report Unable to detect the format of
the received data stream.
Warning, reporting
Recovered audio Warning, reporting
No decoder audio
data
Warning, reporting
Bad audio at decoder Warning, reporting
Bad audio PLL Warning, reporting
Video network
packets dropped
Excessive network packet loss has
occurred.
Warning, reporting
Decoder buffer
overflow
The incoming data rate is high;
reduce the pipeline delay.
Warning, reporting
Decoder buffer
underflow
The incoming data rate is too low;
increase the pipeline delay.
Warning, reporting
Bad video PLL The decoder cannot synchronize
to the video data.
Warning, reporting
No decoder ANC data The decoder is not receiving any
embedded audio (ancillary) data.
Warning, reporting
Missing ANC at
decoder
The Decoder is receiving poor
quality ANC data.
Warning, reporting
Recovered ANC Error correction has recovered
corrupted / missing ANC.
Warning, reporting
No genlock source
present
Indicates that genlock is enabled,
but that there is no genlock
source connected.
Connect a valid genlock
signal.
Warning, reporting
No genlock source
lock
Indicates that a signal is present
on the genlock connector, but it is
not within the expected range.
Check the format of the
genlock signal.
Warning, reporting
Genlock source
mismatch
Indicates that the timing of the
genlock signal does not match the
format of the decoded source.
Connect a valid genlock
signal.
Warning, reporting

Alarm Type Description — System Controller

Alarm Type Description Action Default Settings
Bad device The controller is unable to contact
the specified device. The device is
not available or has failed.
Note that this alarm is only
generated on the controller.
Check the device in question.
Is power applied?
Is the network cable or
network connection present?
Has the unit been removed?
Critical, reporting
VNM Recorder • About Alarms 61