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Chapter 12: Monitoring Subscriber Connections
Avidia System Configuration and Management User Manual 261
The following table describes the information displayed after you type a loop command.
Information Description
Current Transmit Rate The rate at which data is transmitting.
Current Output Power The actual transmit power in dBm.
SNR Margin (1/10 dB) The signal-to-noise ratio of the signal received by the ATU, in
1/10 dB.
Line Attentuation (1/10 dB) The measured difference between the total power transmitted by
the sending ATU and the total power received by the receiving
ATU, in 1/10 dB.
Interleave Delay (ms) The number of milliseconds delay that is occurring between
interleaved data bits.
Errored Seconds The number of seconds in a 15-minute data collection period
during which errors occur that prevent the payload from being
corrected.
Loss of Frame The number of seconds in a 15-minute data collection period
during which the frames on the ADSL interface lose sync.
Loss of Signal The number of seconds in a 15-minute data collection period
during which the signal falls below the configured target noise
margin.
Current State The current status of the ADSL loop. Options:
• noDefect
—There are no errors on the line.
• lossOfFraming
—The line is not receiving valid frames.
• lossOfSignal—The line is not receiving valid signal.
• lossOfPower—The line is not receiving power.
• lossOfSignalQuality
—The margin has fallen below the
configured target margin or the BER exceeds 10
-7
.
• dataInitFailure
—The ATU was unable to initialize.
• configInitFailure
—The ATU was unable to initialize because
the ATU at the other end does not support the requested
configuration.
• protocolInitFailure
—The ATU was unable to initialize because
of an incompatible protocol used by the peer at the other end.
• noPeerAtuPresent
—The ATU was unable to initialize because
no activation sequence was detected from the ATU at the other
end.