ADC HDSL4, H4TU-C-319 List 1 Line Unit Alarm Option for DLC Feed, Retiring System Alarms

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Testing	LTPH-UM-1031-03, Issue 3

Alarm Option for DLC Feed

To improve HDSL4 compatibility with the switch-to-protect features used in DLC feeder applications, the H4TU-C-319 has an Alarm Pattern (ALMP) option that allows you to select either an AIS or LOS DS1 output payload for the following alarms:

•LOSW on any loop

•LOS DS1

Retiring System Alarms

To retire a system alarm, press the SEL pushbutton to execute an Alarm Cutoff (ACO). An ACO turns the alarm off and replaces the ALRM message with an ACO message. The second part of the ALRM message, which defines the cause of the alarm, remains. Both parts of the message remain until the alarm condition clears or another higher priority alarm occurs.

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September 12, 2003

H4TU-C-319 List 1

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Contents HDSL4 H4TU-C-319 List 1 Line UnitIssue Date Revisions Made2001 Initial release March 15 September 12Using this Manual Inspecting ShipmentInspecting Shipment Table of Contents Appendix B Functional Operation Config Menu List of FiguresNavigational Keys for the Maintenance Terminal Screens List of TablesFeatures OverviewApplications Front Panel H4TU-C-319 List 1 Front PanelFront-Panel Feature Function Front-Panel DescriptionBRG LineFront-Panel Display Messages Message Full Name DescriptionLoopback Messages Diagnostic MessagesSystem Information Messages a Marg Margin Current margin threshold setting measured in dB FRM Frame SF, ESF, UnfrCode Line Code AMI, B8ZS Substitution B8ZSInstallation Installing the H4TU-C-319 List 1 into a ShelfVerification without a Downstream Device VerificationVerification with a Downstream Device Setting Options through Mode and SEL Using the Mode and SEL PushbuttonsProvisioning Resetting to Factory Default Displaying System Parameter SettingsDisabling an Alarm Loopback ModesUsing a Maintenance Terminal Connecting to a Maintenance TerminalNavigational Keys for the Maintenance Terminal Screens Logon ScreenPress this key Menu FunctionsPress this key To access this menu Menu Functions Setting Date and Time Provisioning TasksSetting Circuit ID Numbers Inventory ScreenConfiguring the System Config MenuConfig Menu Standard Options defaults shown H4TU-C-319 List 1 Standard Config Menu Options 60 min38 dB AutoH4TU-C-319 List 1 ADC Config Menu Options ADC Config Menu Screen Selection Description OptionsDIS DEFHDSL4 BER Hber NoneLpbk ALM ENADS1/DSX-1 24-Hour PM Threshold ParameterResetting to Factory Defaults Clearing the History, Alarm, and Event Log Screens Config Menu Master ClearMonitoring System Activity and Performance Using the Monitor Screen to View System ActivitySystem Overview Field Description Monitor Screen DescriptionsMAL LPF InslPRM Using the Performance Screens to View Performance Data Performance History at the DS1 InterfaceH4TU-C DS1 25-Hour Performance History H4TU-R DS1 Current Statistics Acronyms Used on the DS1 Performance History Screens Acronym DescriptionPerformance History at the HDSL4 Interface H4TU-C Hdsl Loop 1/Loop 2 31-Day Performance HistoryH4TU-C Hdsl Loop 1/Loop 2 25-Hour Performance History Acronyms Used on the HDSL4 Performance History Screens SESUAS LoswsUsing the Performance Screens to View Alarm Data Alarm History at the DS1 InterfaceScreen Alarm Front-PanelDescription H4TU-C DS1 Alarms on H4TU-R DS1 Alarms on thisRAI Rrai PRM-NE PrmnAlarm History at the HDSL4 Interface HDSL4 Alarms at the H4TU-C onlyUsing the Event LOG to Track System Events System Event LogEvent Log Messages Event Log Entry Messages ListPRM-FE Using the Report Menu Report Menu Full ReportReport Types Type Contains the following informationTesting System AlarmsFront-Panel System Alarms Front-Panel Alarm Description To Inhibit Message aFront-Panel Alarm Description PrmnAlarm Option for DLC Feed Retiring System AlarmsOCT55 Test Pattern with AMI Line Code Remote LOS and AIS ResponseLoopback Operation Loopback SummaryGeneric Loopback Commands Special Loopback CommandsSetting the Loopback Time-Out Option Lbto Manual Loopback SessionLoopback Test Procedures General Troubleshooting TipsLoopback Modes Gnlb Test Procedures Summary of HDSL4 Loopback and Activation CodesLoopback Code Description Test Set Craft Port MODE/SELA3LB Addressable Repeater Loopback Commands A3LB Test ProcedureName A5LB Test Procedure A5LB Addressable Repeater Loopback CommandsTesting LTPH-UM-1031-03, Issue Testing with H4TU-C Bert Generator Bert Signal GeneratorBert Signal Pattern Option DescriptionTesting with H4TU-R Bert Generator H4TU-R Bert Generator ScreenAppendix a Specifications HDSL4System One-way DS1 Delay 700 µs Wander LoopedWideband Jitter Looped UI maximum Narrowband Jitter Looped Maximum Power Dissipation Power ConsumptionH4TU-C Power Parameters HDSL4 Reach Chart Maximum Current DrainLoop ATTENUATION, Insertion LOSS, and Reach 196 KHz dB/kftFuse Alarm Network Management Control BusSystem Alarm Output Pin Craft PortGround Fault Detection Spectrum IssuesAppendix B Functional Operation TimingAppendix C Compatibility Appendix D Product Support Sales AssistanceSystems Integration Online Technical Support Online Technical PublicationsAppendix E Abbreviations Lais LattLbpv LbtoLTPH-UM-1031-03, Issue Certification and Warranty FCC Class a Compliance Limited WarrantyWorld Headquarters For Technical Assistance