HDSL4 for General Distribution Installation and Maintenance Practice Control Port Operation61223HDSL4L2-5C 43Event HistoryThe Event History screen (Figure 37) provides a log history of HDSL4 circuit events.Figure 37. Event History ScreenThe following is a list (but not all-inclusive) of possible events:• Circuit ID Change • HDSL/T1 PM Registers Reset• DS1 Transmit Level Option Change • Line Code Option Change• DSX/DS1 Alarm Type Active/Inactive • Loopback Time Out Option Change• DSX-1 Line Build Out Option Change • Network Source Setting Change• Element Network/Customer Loop up/Loop down• NIU Loopback Option Change• Event Log Reset • Span Power Option Change• External Alarm Blocking Change • Time/Date Changed From/To• Framing Option Change • Splice Detector Reset• H4TU-C/H4TU-R Powered Up • Bad Splice DetectedCircuit ID:HNTSVLALHDSL4 03/09/05 09:29:45Press ESC to return to previous menuNum Description of Event Date Time Source-------------------------------------------------------------------------1. H4TU-C Powered Up 01/01/00 00:00:01 H4TU-C2. H4TU-R Powered Up 01/01/00 00:03:08 H4TU-R3. H4TU-C Powered Up 01/01/00 00:00:01 H4TU-C4. H4TU-R Powered Up 01/01/00 00:14:03 H4TU-R5. Default Options Restored 01/01/00 00:16:23 H4TU-C6. Date changed to 06/09/04 02:18:07 H4TU-C7. Time changed to 06/09/04 11:28:00 H4TU-C8. T1 PM Registers Reset 06/09/04 11:54:37 H4TU-C9. T1 PM Registers Reset 06/09/04 11:57:09 H4TU-CPage Number: 1/ 1 Number of Events: 9-------------------------------------------------------------------------'P' - Previous Page 'H' - Home 'R' - Reset Events'N' - Next Page 'E' - EndSelection: