Synchronization
• Local (internal) or loop timed (recovered from network)
• Stratum 3 clock accuracy (± 4.6 ppm) over full operating temperature
• Pointer activity monitoring
Local (diagnostic) and line (network) loopback
Section DCC (SDCC) – Platform-dependent feature
Payload mapping
• 1 + X^43 self-synchronous scrambler
SONET/SDH compliance
• Telecordia (Bellcore) GR-253-CORE (as applicable)
• ANSI T1.105, T1.231
• ITU-T G.707, G.957, G.825 (as applicable)
Supported SONET/SDH alarm and signal events
• Signal Failure Bit Error Rate (SF-BER)
• Signal Degrade Bit Error Rate (SD-BER)
• Signal Label Payload Construction (C2)
• Path Trace Byte (J1)
• Section
• Loss of Signal (LOS)
• Loss of Frame (LOF)
• Error Counts for B1
• Threshold Crossing Alarms (TCA) for B1
• Line
• Line Alarm Indication Signal (LAIS)
• Line Remote Defect Indication (LRDI)
• Line Remote Error Indication (LREI)
• Error Counts for B2
• Threshold Crossing Alarms (TCA) for B2
• Path
• Path Alarm Indication Signal (PAIS)
• Path Remote Defect Indication (PRDI)
• Path Remote Error Indication (PREI)
• Error Counts for B3
• Threshold Crossing Alarms (TCA) for B3
• Loss of Pointer (LOP)
• Positive Stuffing Event (PSE)
• Negative Stuffing Event (NSE)
• Path Unequipped Indication Signal (PUNEQ)
• Path Payload Mismatch Indication Signal (PPLM) |
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