ADTRAN HDSL2 Installation And Maintenance Practice

Also see for 1223024L2: Installation and maintenance practice Manual

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ADTRAN HDSL2 Installation And Maintenance Practice Manual pdf 36 page image

Control Port Operation HDSL2 for General Distribution Installation and Maintenance Practice26 61223HDSL2L2-5BTotal Access 3000 H2TU-C Auto In Service Status ScreenThe Auto In Service Status Screen (Figure 23) provides the status of the Auto In Servicefeature.The T1 alarm indications will display if the External Alarms option is enabled on the Provi-sioning menu (Figure 17).The Auto In Service Status screen also indicates the startup or exit period remaining as either1, 4, 8, or 24 hours. This is the time during which the unit monitors both loop synchroni-zation (Loop Sync) and T1 alarms (if enabled) and will only go into (or out of) service if thecircuit remains synchronized and without T1 alarms during the entire measured period.These times are also set from the Provisioning menu. System responses displayed in thestatus fields on this screen are shown in Table 11 below.A single menu option is provided to view the Alarm History Screen. This screen is alsoavailable by selecting the HDSL2 Main Menu option.Figure 23. Auto In Service ScreenTable 11. Auto In Service Status IndicationsStatus Field Name System IndicationsCurrent Auto In Service State (line 1) In-ServiceOut-of-Service MaintenanceAuto In Service Status (line 2) Currently in startup periodCurrently in exiting periodOK, Startup Period COMPLETEDOK, Startup INCOMPLETE (forced in-service)Auto In Service Criteria (line 3) DSL Loop Sync (T1 alarms ignored)DSL Loop Sync and absence of T1 alarmsCriteria (current status) DSL Loop Sync = OK or LOS (LOS shown in Figure 23)T1 Alarm Status = Alarm or OKShelf: 1 Slot: 15 Total Access System 03/01/05 09:29Unacknowledged Alarms: NoneCircuit ID:Auto In Service Status ScreenCurrent Auto In Service State = Out-of-Service MaintenanceAuto In Service Status = Currently in Startup PeriodAuto In Service Criteria = DSL Loop Sync (T1 alarms ignored)NOTE: The external alarms provisioning option determineswhether T1 alarms are an auto in service criterion.Enabling external alarms sets T1 alarms as a criterion.Criteria Status--------------- ------DSL Loop Sync LOS---Startup Period Timer---4 hrs 0 mins--------------------------------------------------------------------------------1. View Alarm HistorySelection: