ADC H4TU-C-319 List 1 Line Unit, HDSL4 user manual Insl, Lpf, Prm

Page 35

LTPH-UM-1031-03, Issue 3Monitoring System Activity and Performance

 

Table 8. Monitor Screen Descriptions (Continued)

 

 

Field

Description

 

 

UAS Count

Unavailable Seconds—The number of seconds during which the DS1 input signal was absent over

 

a 24-hour period.

 

 

Frame and Code Type

 

ESF

Type of DS1 framing used on the input stream (SF, ESF, or UNFR).

B8ZS

Type of DS1 line coding used (B8ZS or AMI).

 

 

HDSL4 Errors

 

ES Count

Errored Seconds—The number of 1-second intervals that contained at least one CRC or LOSW

 

error. This value is a running total of the last 24 Hours.

SES Count

Severely Errored Seconds—The number of 1-second intervals that contain at least 50 CRC errors

 

or one or more LOSW defects. (An LOSW defect occurs when at least three consecutive HDSL

 

frames contain one or more frame bit errors.) This value is a running total of the last 24 hours.

UAS Count

Unavailable Seconds—The number of seconds the HDSL4 loop is unavailable. This occurs after

 

10 contiguous HDSL SES and is retired after 10 contiguous non-SES seconds. This value is a

 

running total of the last 24 hours.

 

 

ID

Circuit identification number.

 

 

INSL

Insertion Loss—The signal loss value for a 196 kHz signal over the cable pair.

 

 

LA

Loop Attenuation—Indicates the attenuation of the Overlapped Pulse Amplitude Modulation

 

(OPAM) transmission pulse from the distant end. Proper HDSL4 loop operation requires that this

 

value be less than 34 dB. This value differs from the insertion loss value of a conventional 196 kHz

 

signal.

 

 

LPF

Line Power Feed—Indicates the HDSL4 line power is on.

 

 

M

Margin—The signal-to-noise ratio at all HDSL4 ports, relative to a 10-7Bit Error Rate.

PL (or HG)

PL displays when the loopback was initiated by a command embedded in the DS1 data path

 

payload (PL). HG displays when the loopback was initiated from a HDSL Generic (HG) front panel

 

or by a maintenance terminal loopback command.

 

 

PRM

The sum of the Performance Report Messaging-Near End (PRM-NE) and Performance Report

 

Messaging-Far End (PRM-FE) counts.

 

 

System Status

The presence or absence of an alarm condition is indicated on the lower right corner of all screens.

 

System: OK indicates that there are no alarms present; System: Alarm indicates the presence of an

 

alarm. Refer to “Using the Performance Screens to View Alarm Data” on page 35.

 

 

H4TU-C-319 List 1

September 12, 2003

27

Image 35
Contents H4TU-C-319 List 1 Line Unit HDSL4September 12 IssueDate Revisions Made 2001 Initial release March 15Inspecting Shipment Using this ManualInspecting Shipment Table of Contents Appendix B Functional Operation List of Figures Config MenuList of Tables Navigational Keys for the Maintenance Terminal ScreensOverview FeaturesApplications H4TU-C-319 List 1 Front Panel Front PanelLine Front-Panel Feature FunctionFront-Panel Description BRGMessage Full Name Description Front-Panel Display MessagesSystem Information Messages a Diagnostic MessagesLoopback Messages Substitution B8ZS Marg Margin Current margin threshold setting measured in dBFRM Frame SF, ESF, Unfr Code Line Code AMI, B8ZSInstalling the H4TU-C-319 List 1 into a Shelf InstallationVerification with a Downstream Device VerificationVerification without a Downstream Device Provisioning Using the Mode and SEL PushbuttonsSetting Options through Mode and SEL Loopback Modes Resetting to Factory DefaultDisplaying System Parameter Settings Disabling an AlarmLogon Screen Using a Maintenance TerminalConnecting to a Maintenance Terminal Navigational Keys for the Maintenance Terminal ScreensMenu Functions Press this keyPress this key To access this menu Menu Functions Provisioning Tasks Setting Date and TimeInventory Screen Setting Circuit ID NumbersConfig Menu Configuring the SystemConfig Menu Standard Options defaults shown Auto H4TU-C-319 List 1 Standard Config Menu Options60 min 38 dBDEF H4TU-C-319 List 1 ADC Config Menu OptionsADC Config Menu Screen Selection Description Options DISALM ENA HDSL4 BER HberNone LpbkParameter DS1/DSX-1 24-Hour PM ThresholdResetting to Factory Defaults Config Menu Master Clear Clearing the History, Alarm, and Event Log ScreensSystem Overview Using the Monitor Screen to View System ActivityMonitoring System Activity and Performance MAL Monitor Screen DescriptionsField Description PRM InslLPF Performance History at the DS1 Interface Using the Performance Screens to View Performance DataH4TU-C DS1 25-Hour Performance History H4TU-R DS1 Current Statistics Acronym Description Acronyms Used on the DS1 Performance History ScreensH4TU-C Hdsl Loop 1/Loop 2 31-Day Performance History Performance History at the HDSL4 InterfaceH4TU-C Hdsl Loop 1/Loop 2 25-Hour Performance History Losws Acronyms Used on the HDSL4 Performance History ScreensSES UASAlarm History at the DS1 Interface Using the Performance Screens to View Alarm DataPRM-NE Prmn Screen Alarm Front-PanelDescription H4TU-C DS1 Alarms onH4TU-R DS1 Alarms on this RAI RraiHDSL4 Alarms at the H4TU-C only Alarm History at the HDSL4 InterfaceSystem Event Log Using the Event LOG to Track System EventsPRM-FE Event Log Entry Messages ListEvent Log Messages Report Menu Full Report Using the Report MenuType Contains the following information Report TypesFront-Panel Alarm Description To Inhibit Message a TestingSystem Alarms Front-Panel System AlarmsPrmn Front-Panel Alarm DescriptionRetiring System Alarms Alarm Option for DLC FeedRemote LOS and AIS Response OCT55 Test Pattern with AMI Line CodeLoopback Summary Loopback OperationSpecial Loopback Commands Generic Loopback CommandsManual Loopback Session Setting the Loopback Time-Out Option LbtoGeneral Troubleshooting Tips Loopback Test ProceduresLoopback Modes MODE/SEL Gnlb Test ProceduresSummary of HDSL4 Loopback and Activation Codes Loopback Code Description Test Set Craft PortName A3LB Test ProcedureA3LB Addressable Repeater Loopback Commands A5LB Addressable Repeater Loopback Commands A5LB Test ProcedureTesting LTPH-UM-1031-03, Issue Option Description Testing with H4TU-C Bert GeneratorBert Signal Generator Bert Signal PatternH4TU-R Bert Generator Screen Testing with H4TU-R Bert GeneratorHDSL4 Appendix a SpecificationsWideband Jitter Looped UI maximum Narrowband Jitter Looped One-way DS1 Delay 700 µs Wander LoopedSystem H4TU-C Power Parameters Power ConsumptionMaximum Power Dissipation 196 KHz dB/kft HDSL4 Reach ChartMaximum Current Drain Loop ATTENUATION, Insertion LOSS, and ReachNetwork Management Control Bus Fuse AlarmCraft Port System Alarm Output PinTiming Ground Fault DetectionSpectrum Issues Appendix B Functional OperationAppendix C Compatibility Online Technical Support Online Technical Publications Appendix D Product SupportSales Assistance Systems IntegrationAppendix E Abbreviations Lbto LaisLatt LbpvLTPH-UM-1031-03, Issue FCC Class a Compliance Limited Warranty Certification and WarrantyFor Technical Assistance World Headquarters