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ADC H2TU-C-319 List 4E ACTIVATING MANUAL METALLIC TEST ACCESS

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Testing LTPH-UM-1049-02, Issue 2

58 January 9, 2002 H2TU-C-319 List 4E

2Press LBK to activate NLOC. The display changes to MAN LPBK NLOC.

3Press MODE to advance to the next available loopback:

•NRE? = NREM

•CRE? = CREM

•CLO? = CLOC

4Press LBK to activate the selected loopback. The previous loopback is terminated.

Once a loopback is selected and activated, the loopback stays active until it times out (based on the LBTO setting).

When a loopback times out, the display then returns to the normal display mode.

You can terminate loopbacks manually and exit the MAN LPBK mode by simultaneously pressing the MODE

and LBK pushbuttons for 3 or more seconds. If no loopback is active, the MAN LPBK mode automatically

terminates after 30 seconds.

All loopbacks can be initiated by in-band commands in the DS1 payload or by a command from the HiGain

HDSL2 system (front-panel pushbuttons or maintenance screen selections). Therefore, whenever a loopback is

active, the method by which it was activated is indicated in the loopback and status information (Monitor screen)

by the annotation HG (HiGain HDSL2) or PL (Payload) adjacent to the identified loopback. For example,

NREM-HG indicates that the loopback was initiated by the HiGain HDSL2 system.

ACTIVATING MANUAL METALLIC TEST ACCESS

A Metallic Test Access (MTA) test mode can be initiated with the front panel MODE and LBK pushbuttons in

the same way the manual loopbacks can be initiated. This choice is presented at the end of the MAN LPBK

sequence of choices.

To initiate a manual MTA session:

1Press both the MODE and LBK pushbuttons on the front panel for at least 3 seconds. The following message

appears on the front-panel display:

MAN LPBK NLO?

2Press MODE to advance to the last choice in the following sequence:

•CRE?

•NRE?

•CLO?

•NLO?

•MTA?.

3Press LBK to activate the MTA test mode. This terminates any active loopbacks.

4Once selected, the display changes to MAN MTA.

Once the MTA mode is selected and activated, the MTA mode remains active until it times out based on the LBTO

setting. When the MTA mode times out, the display then returns to the normal display mode.

SMJK loopback commands are only activated by in-band commands.

Contents

Main HiGain HDSL2 U SER M L B K M O D E Revision History of This Manual USING THIS MANUAL I NSPECTING S Page TABLE OF CONTENTS Page LIST OF FIGURES LIST OF TABLES O F C A LTPH-UM-1049-02, Issue 2 Front Panel H2TU-C-319 List 4E January 9, 2002 3 FRONT PANEL DCE Status LED DSX-1 access jacks Craft port Table 1. Front-Panel Description Page Page Table 2. Front-Panel Display Messages (Continued) I V Verification without an H2TU-R Remote Unit Verification with an H2TU-R Remote Unit P USING THE MODE AND LBK PUSHBUTTONS Setting Options through MODE and LBK Resetting to Factory Default Values Displaying System Parameter Settings Disabling an Alarm Loopback Modes USING A MAINTENANCE TERMINAL Connecting to a Maintenance Terminal The Logon Screen Figure 3. Logon Screen Table 4. Logon Screen Menus PROVISIONING TASKS Setting Date and Time Setting Circuit ID Numbers Configuring the System Making Changes to Standard and ADC Options LTPH-UM-1049-02, Issue 2 Provisioning H2TU-C-319 List 4E January 9, 2002 17 Figure 7. Config Menu - Standard Options (defaults shown) Figure 8. Config Menu - ADC Options (defaul ts shown) Page Table 6. H2TU-C-319 List 4E ADC Config Menu Options Table 5. H2TU-C-319 List 4E Standard Config Menu Options (Continued) Page Table 6. H2TU-C-319 List 4E ADC Config Menu Options (Contin ued) Page Page Page Table 9. Extended SuperFrame Format Table 10. SuperFrame Format Page Page Provisioning LTPH-UM-1049-02, Issue 2 28 January 9, 2002 H2TU-C-319 List 4E Test Access Figure 9. Metallic Test Access Block Diagram LTPH-UM-1049-02, Issue 2 Provisioning H2TU-C-319 List 4E January 9, 2002 29 MUX Figure 10. MTA Relays DACS Provisioning LTPH-UM-1049-02, Issue 2 30 January 9, 2002 H2TU-C-319 List 4E Figure 12. H2TU-C-319 List 4E Block Diagram Dual DSX-1 Port Option Resetting to Factory Defaults Clearing the History, Alarm, and Event Log Screens MONITORING SYSTEM ACTIVITY AND P USING THE MONITOR SCREEN TO VIEW SYSTEM ACTIVITY Table 14. Monitor Screen Descriptions USING THE PERFORMANCE SCREENS TO VIEW PERFORMANCE DATA 38 January 9, 2002 H2TU-C-319 List 4E Performance History at the DS1 Interface Figure 16. H2TU-R DS1 31-Day Performance History Figure 17. H2TU-R DS1 25-Hour Performance History Page 40 January 9, 2002 H2TU-C-319 List 4E Performance History at the HDSL2 Interface Figure 19. H2TU-C HDSL2 31-Day Performance History Figure 20. H2TU-C HDSL2 48-Hour Performance History Page 42 January 9, 2002 H2TU-C-319 List 4E Current Statistics Screens for the DS1 Interface Figure 22. H2TU-R DS1 Current Statistics Figure 23. H2TU-C DS1 Current Statistics LTPH-UM-1049-02, Issue 2 Monitoring System Activity and Performance H2TU-C-319 List 4E January 9, 2002 43 Current Statistics for HDSL2 Interface Figure 24. H2TU-C HDSL2 Current Statistics USING THE PERFORMANCE SCREENS TO VIEW ALARM DATA Figure 26. H2TU-R DS1 Alarm History Screen Table 17. DS1 Alarm Descriptions 46 January 9, 2002 H2TU-C-319 List 4E Alarm History at the HDSL2 Interface Figure27 shows the H2TU-C HDSL2 alarm history and Table 18 describes the alarms. Figure 27. H2TU-C HDSL2 Alarm History Screen Table 17. DS1 Alarm Descriptions (Continued) Screen Alarm Front-Panel Alarm Description Table 18. HDSL2 Alarm Descriptions USING THE SYSTEM EVENT LOG TO TRACK EVENTS Table 19. Event Log Entry Messages List USING THE REPORT MENU Table 20. Report Types T SYSTEM ALARMS Alarm Option for the Digital Loop Carrier Feed Retiring System Alarms Remote LOS and AIS Response Figure 30. H2TU-R LOS and AIS Response Priorities OCT55 TEST PATTERN WITH AMI LINE CODE LOOPBACK OPERATION Generic Loopback Commands Special Loopback Commands SmartJack Loopback Commands M ANUAL L OOPBACK S Setting the Loopback Time-Out Option Activating Manual Loopback Mode ACTIVATING MANUAL METALLIC TEST ACCESS IN-BAND LOOPBACK SESSIONS General Troubleshooting Tips GNLB Test Procedures Testing LTPH-UM-1049-02, Issue 2 60 January 9, 2002 H2TU-C-319 List 4E Figure 32. Loopback Modes DSX-1 GNLB loopback codes. LoopbacksToward Customer CI-Customer Interface A2LB Test Procedures Page Page A3LB and A4LB Test Procedures SmartJack Test Procedure APPENDIX A - SPECIFICATIONS P OWER C M AXIMUM P OWER D M AXIMUM C URRENT D LOOP ATTENUATION, INSERTION LOSS, AND REACH Appendix A - Specifications LTPH-UM-1049-02, Issue 2 68 January 9, 2002 H2TU-C-319 List 4E H2TU-C-319 LIST 4E CARD-EDGE CONNECTOR Figure 33. H2TU-C-319 List 4E Card-Edge Connector Network Management Control Bus Fuse Alarm System Alarm Output Pin CRAFT PORT Terminal Figure 35. RS-232 Craft Port Pinouts H2TU-C-319 Terminal APPENDIX B - FUNCTIONAL OPERATION Figure 36. H2TU-C-319 List 4E Block Diagram Page APPENDIX C - COMPATIBILITY APPENDIX D - PRODUCT SUPPORT TECHNICAL SUPPORT R APPENDIX E - ABBREVIATIONS Page Page CERTIFICATION AND WARRANTY FCC CLASS A COMPLIANCE L IMITED W M S AFETY S TANDARDS C ,-Q6o