Integrated services digital network conformance testing
Daniel P Stokesberry, Daniel P Stokesberry, Kathleen M. Roberts · 1992
5.2 Start-up Procedures 27 5.2.1 Start-Up Sequence 5.2.1.1Activation from Customer Equipment 5.2.1.2Activation from the Network 5.2.1.3Deactivation 5.2.2 Signals During Start-Up 5.2.2.1 Verify Signal TN/SNl and Synchronization Word 5.2.2.2 Verify Signal SN2 5.2.2.3 Verify Signal SN3 5.2.3 Timers 5.2.3.1 Failure to Complete Start-Up Within 15 Seconds 31 5.2.3.2Loss of Received Signal for more than 480 ms 31 5.2.3.3Loss of Synchronization for more than 480 ms 5.2.3.4Verify Proper State if no Signal is Received upon Cessation of TN 5.2.4 Verify Warm Start Activation 5.3 Frame Offset 5.4 Wiring Polarity 5.5 User Data (2B+D) 5.6 Scrambling 6 M-CHANNEL BIT FUNCTIONS 6.1 Cyclic Redundancy Check 6.2 Far End Block Error (febe) Bit 6.3