ADC H4TU-C-319 List 1 Line Unit Testing with H4TU-R Bert Generator, H4TU-R Bert Generator Screen

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LTPH-UM-1031-03, Issue 3

Testing

 

 

TESTING WITH H4TU-R BERT GENERATOR

The H4TU-R BERT Generator screen allows transmission of an unframed test signal from the H4TU-R towards either the network (NET) or customer (CPE). Bit error rates are calculated and display on the Monitor screen.

1Press R to logon remotely, then press C to select the Config menu (Figure 31).

2Use the and arrow keys to select BERT Generator, then press ENTER .

3Use the arrow keys to select an option, then press the SPACEBAR to cycle through the settings. Refer to Table 19 on page 56 for a list of BERT Generator option settings.

4Press ENTER to activate your choice.

5To view BERT status, press ESC twice, then, using the arrow key to select the Monitor menu, press

ENTER .

6Press R to return to the H4TU-C logon screen. You can exit the status screen while signal generation is active.

Monitor

Performance Event Log

Config

Inventory

Report Rlogon

Help

 

----------------------+

 

 

+

 

 

 

Standard Options

->

 

 

 

 

ADC Options

->

 

 

 

 

BERT Generator

->

 

 

+--------------------------------------

 

 

+

BERT Signal Generator

:

ENA

 

BERT Signal Pattern

:

1 in 8

BERT Signal Linecode

: AMI

BERT Signal Direction

: NET only

BERT Interval

: Continuous

+--------------------------------------

 

 

+

Use <Spacebar> to cycle through option settings and

<Enter> to activate

 

ID: xxxx—-xxxx—-xxxx--xxxx

02/01/2002 12:30:01

H4TU-R

System:

OK___

Figure 31. H4TU-R BERT Generator Screen

The test pattern is sent out either from the line unit towards the network (toward NET) or from the remote unit towards the customer (toward CPE). Both test payloads must be looped back so they can be returned to the unit for BER detection. BER detection is performed in the line unit for both switch settings.

Tests done towards the NET must be looped at some point external to the higher circuit. Tests done towards the CPE can either be looped back at some external point beyond the remote unit, or they can be looped back internally by a higher loopback, such as NREM. The test payload, for the CPE direction, also passes back and forth over the HDSL4 link to the H4TU-C before it is analyzed for errors.

H4TU-C-319 List 1

September 12, 2003

57

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Contents H4TU-C-319 List 1 Line Unit HDSL4Date Revisions Made Issue2001 Initial release March 15 September 12Inspecting 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 PanelFront-Panel Description Front-Panel Feature FunctionBRG LineMessage Full Name Description Front-Panel Display MessagesSystem Information Messages a Diagnostic MessagesLoopback Messages FRM Frame SF, ESF, Unfr Marg Margin Current margin threshold setting measured in dBCode Line Code AMI, B8ZS Substitution 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 Displaying System Parameter Settings Resetting to Factory DefaultDisabling an Alarm Loopback ModesConnecting to a Maintenance Terminal Using a Maintenance TerminalNavigational Keys for the Maintenance Terminal Screens Logon ScreenMenu 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 60 min H4TU-C-319 List 1 Standard Config Menu Options38 dB AutoADC Config Menu Screen Selection Description Options H4TU-C-319 List 1 ADC Config Menu OptionsDIS DEFNone HDSL4 BER HberLpbk ALM ENAParameter 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 SES Acronyms Used on the HDSL4 Performance History ScreensUAS LoswsAlarm History at the DS1 Interface Using the Performance Screens to View Alarm DataH4TU-R DS1 Alarms on this Screen Alarm Front-PanelDescription H4TU-C DS1 Alarms onRAI Rrai PRM-NE PrmnHDSL4 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 TypesSystem Alarms TestingFront-Panel System Alarms Front-Panel Alarm Description To Inhibit Message aPrmn 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 Summary of HDSL4 Loopback and Activation Codes Gnlb Test ProceduresLoopback Code Description Test Set Craft Port MODE/SELName A3LB Test ProcedureA3LB Addressable Repeater Loopback Commands A5LB Addressable Repeater Loopback Commands A5LB Test ProcedureTesting LTPH-UM-1031-03, Issue Bert Signal Generator Testing with H4TU-C Bert GeneratorBert Signal Pattern Option DescriptionH4TU-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 Maximum Current Drain HDSL4 Reach ChartLoop ATTENUATION, Insertion LOSS, and Reach 196 KHz dB/kftNetwork Management Control Bus Fuse AlarmCraft Port System Alarm Output PinSpectrum Issues Ground Fault DetectionAppendix B Functional Operation TimingAppendix C Compatibility Sales Assistance Appendix D Product SupportSystems Integration Online Technical Support Online Technical PublicationsAppendix E Abbreviations Latt LaisLbpv LbtoLTPH-UM-1031-03, Issue FCC Class a Compliance Limited Warranty Certification and WarrantyFor Technical Assistance World Headquarters