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Contents
Inserting an External DSn Payload/Test Signal 43
Dropping an External Payload/Test Signal 46
Adding Errors & Alarms at the SONET Interface 49
Adding Errors & Alarms to the DSn Interface/DSn Payload 50
Using FEAC Codes 51
Setting DSn Spare Bits 53
Adding Pointer Adjustments 54
Using Pointer Graph Test Function 61
Stressing Optical Clock Recovery Circuits 63
Generating Automatic Protection Switch Messages 64
Inserting & Dropping Data Communications Channel 65
3 Making Measurements
Using Overhead BER Test Function 68
Test Timing 69
Making SONET Analysis Measurements 70
Making DSn Analysis Measurements 71
Measuring Frequency 72
Measuring Optical Power 73
Measuring Round Trip Delay 74
Monitoring Signaling Bits 76
Measuring Service Disruption Time 77
Performing a SONET Tributary Scan 80
Performing an SONET Alarm Scan 82
Performing a DSn Alarm Scan 83
Measuring Jitter 84
Measuring Extended Jitter 86
Measuring Wander 87
Measuring Jitter Tolerance 89