Network Technologies DVB-ASI to IP User Manual

Page 66

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ASI-IP-GTW User's Manual

Page

66

Table 12. Alarms

Alarm
id

Alarm Severity

level

Description

100

No sync

Critical

No valid ASI input stream detected.

101

ASI bitrate too high

Critical

The ASI input bitrate has exceeded the
configured maximum value.

121

Bitrate regulation in
progress

Filtered

The regulation algorithm is estimating the
incoming bitrate to compensate for the
difference in PCR clocks on the source
encoder and the IP receiver. While this
alarm is active, the output bitrate may be
tuned beyond the limits of the ASI
specifications.

130

Ethernet link down

Critical

No link on Ethernet layer

131 Output

buffer

overflow

Warning

The total bitrate of the ASI input streams is
too high.

140

ARP unresolved

Warning

IP address is not resolved into physical
MAC address.

150

Sequence error

Warning

Analysis of the sequence number of the
RTP layer indicates that IP frames have
been lost or that they have been received
out of order.

151

No data received

Warning

No data received on Ethernet input for
stream

152 FEC

threshold

exceeded

Warning

The frequency of lost frames is higher than
the configured value. Threshold values are
configured per stream.

153 Input

buffer

overflow

Warning

The total bitrate of the IP input streams is
too high.

154

Data lost

Critical

The data stream received for a channel is
incomplete, and if running FEC, the FEC
engine is not able to recover all the lost
frames.

155

No lock

Critical

The IP receive channel is not able to find
an initial bitrate for the data received.

156

MIP not present

Warning

No MIP frames are received.

157

Too low latency for
FEC

Warning

The preferred latency is set lower than the
latency required by the incoming stream.

160 SNTP

server

unreachable

Warning

Unit is not receiving answers from the
SNTP server.

161 Too

high

temperature

Warning

Internal temperature of unit is too high.

162

Defective fan

Warning

One or both of the fans are not spinning.

200

No GPS 1PPS
reference signal

Warning

The 1PPS reference signal is lost. (The
regulator has however not lost
synchronization)

201

Lost GPS 1PPS
synchronization

Critical

The clock synchronization mechanism has
been resynchronized due to too large
phase error.

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