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Software Configuration Overview 40
Model 3124 User Manual 3 • Configuration
ADSL Alarms
The Model 3124 provides the following ADSL alarms:
• LOS (Loss of Signal) -Near End/Far End
• LOF (Loss of Frame) -Near End/Far End
• LOM (Loss of Margin) -Near End/Far End
• LCD (Loss of Cell Delineation) -Near End/Far End
• NCD (No Cell Delineation) -Near End/Far End
• LOPWR (Loss of Power) -Far End
• COMMF: Unable to communicate with peer modem -Far End
• NOPEER: No peer present – Far End
Loopback Testing
The Model 3124 supports ATM and ADSL loop diagnostics.
• ATM:
The system provides F5 end-to-end or segment loopback.
• ADSL:
The system provides Dual Ended Loop Testing (DELT) for each ADSL line on a per port basis, according
to the definition per section 8.12.3 of ITUT G992.3.
The following test parameters are supported:
- Channel Characteristics Function H(f) per subcarrier (CCF-ps),
- Quiet Line Noise PSD QLN(f) per subcarrier (QLN-ps),
- Signal-to-Noise Ratio SNR(f) per subcarrier (SNR-ps),
- Line Attenuation (LATN),
- Signal Attenuation (SATN),
- Signal-to-Noise Ratio Margin (SNRM),
- Attainable Net Data Rate (ATTNDR),
- Far-end Actual Aggregate Transmit Power (ACTATP),
- Near-End Actual Aggregate Transmit Power (ACTATP).