Table 12. Decoder Alarm Type and Description
Alarm Type Description Action Default Settings
Decoder Alarm
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
Not applicable to VNC 325. N/A
No decoder audio
data
Not applicable to VNC 325. N/A
Bad audio at decoder
Not applicable to VNC 325. N/A
Bad audio PLL
Not applicable to VNC 325. N/A
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
Table 13. Controller Alarm Type and Description
Alarm Type Description Action Default Settings
Controller Alarm
Bad device
The controller is unable to contact
the specified device. The device is
not available or has failed.
Check the device in
question:
• Has the unit been
removed?
• Is power applied?
• Are the network
cable and
connection
present?
Critical, reporting
VN-Matrix 325 Serial Digital Over IP CODEC • Alarms and SNMP 62