ADC HiGain HDSL2 User manual

HIGAIN HDSL2 LINE UNIT
TECHNICAL PRACTICE
H2TU-C-231 List 1F
Part Number: 150-2404-16
CLEI Code: VACHU48C
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™152-231-116-01)¨
Section Number 152-231-116-01

152-231-116-01, Revision 01
ii October 2, 2000 H2TU-C-231
Revision History of This Practice
Copyright
October 2, 2000
©Copyright 2000 ADC DSL Systems, Inc. All rights reserved.
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc.
HiGain is a registered trademark of PairGain Technologies, Inc. No right, license, or interest to such trademarks is granted
hereunder, and you agree that no such right, license, or interest shall be asserted by you with respect to such trademark.
Other product names mentioned in this practice are used for identification purposes only and may be trademarks or registered
trademarks of their respective companies.
Disclaimer of Liability
Information contained in this document is company private to ADC DSL Systems, Inc., and shall not bemodified, used, copied,
reproduced or disclosed in whole or in part without the written consent of ADC.
Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice.
In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits, and ADC further
disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of
liability applies to all products, publications and services during and after the warranty period.
Revision Release Date Revisions Made
01 October 2, 2000 Initial release.

152-231-116-01, Revision 01 Using This Technical Practice
H2TU-C-231 October 2, 2000 iii
USING THIS TECHNICAL PRACTICE
The following conventions are used in this manual:
•Monospace type indicates screen text.
•Keys you press are indicated by small icons such as or . Key combinations to be pressed
simultaneously are indicated with a plus sign as follows: + .
•Items you select are in bold.
•Three types of messages, identified by icons, appear in text.
For a list of abbreviations used in this document, refer to “Appendix E - Abbreviations” on page 68.
INSPECTING SHIPMENT
Upon receipt of the equipment:
•Unpack each container and inspect the contents for signs of damage. If the equipment has been damaged in
transit, immediately report the extent of damage to the transportation company and to ADC DSL Systems,
Inc. Order replacement equipment, if necessary.
•Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short
or irregular, contact ADC DSL Systems, Inc. as described in “Returns” on page 66. If you must store the
equipment for a prolonged period, store the equipment in its original container.
Notes contain information about special circumstances.
Cautions indicate the possibility of personal injury or equipment damage.
The Electrostatic Discharge (ESD) susceptibility symbol indicates that a device or assembly is
susceptible to damage from electrostatic discharge.
YENTER
CTRL ESC

Inspecting Shipment 152-231-116-01, Revision 01
iv October 2, 2000 H2TU-C-231

152-231-116-01, Revision 01 Table of Contents
H2TU-C-231 List 1F October 2, 2000 v
TABLE OF CONTENTS
Overview ____________________________________________________________________________ 1
Features..............................................................................................................................................1
Compatibility .....................................................................................................................................2
Applications .......................................................................................................................................2
Front Panel __________________________________________________________________________ 3
Installation___________________________________________________________________________ 7
Verification ........................................................................................................................................8
Verification without a Downstream Device........................................................................8
Verification with a Downstream Device .............................................................................8
Provisioning__________________________________________________________________________ 9
Reviewing System Settings................................................................................................................9
Accessing the Provisioning Screens ..................................................................................................9
Connecting to a Maintenance Terminal...............................................................................9
Logon Screen.....................................................................................................................10
Provisioning Tasks...........................................................................................................................12
Setting Date and Time.......................................................................................................12
Setting Circuit ID Numbers...............................................................................................13
Configuring the System.....................................................................................................14
Resetting to Factory Defaults ............................................................................................24
Clearing the History, Alarm, and Event Log Screens .......................................................25
Monitoring System Activity and Performance ____________________________________________ 26
Performance Monitoring from the H2TU-R....................................................................................27
Using the Monitor Screen to View System Activity........................................................................28
Using the Performance Screens to View Performance Data............................................................30
Performance History at the DS1 Interface.........................................................................30
Blockage Indicator Statistics at the H2TU-R DS1 Interface.............................................34
Performance History at the HDSL2 Interface ...................................................................35
Using the Performance Screens to View Alarm Data......................................................................38
Alarm History at the H2TU-C DS1 Interface....................................................................38
Alarm History at the HDSL2 Interface..............................................................................40
Using the System Event Log to Track Events .................................................................................41
Origin Tags........................................................................................................................42
Event Log Messages..........................................................................................................43
Using the Sectionalized Event Log to Isolate Trouble ....................................................................44

Table of Contents 152-231-116-01, Revision 01
vi October 2, 2000 H2TU-C-231 List 1F
Testing _____________________________________________________________________________ 46
Front-Panel System Alarms............................................................................................................. 46
Alarm Option for Digital Loop Carrier (DLC) Feed ........................................................ 47
Retiring System Alarms.................................................................................................... 47
Remote LOS and AIS Response....................................................................................... 48
OCT55 Test Pattern with AMI Code............................................................................................... 48
Loopback Operation........................................................................................................................ 49
Generic Loopback Commands........................................................................................................ 50
Special Loopback Commands......................................................................................................... 51
Manual Loopback Session............................................................................................................... 52
Setting the Loopback Time-Out Option............................................................................ 52
Activating Manual Loopback Mode................................................................................. 52
Loopback Test Procedures .............................................................................................................. 53
General Troubleshooting Tips .......................................................................................... 53
GNLB Test Procedures..................................................................................................... 53
A1LB, A2LB, and A5LB Test Procedures....................................................................... 55
A3LB and A4LB Test Procedures .................................................................................... 57
Testing with the H2TU-R Signal Generator.................................................................................... 58
Appendix A - Specifications____________________________________________________________ 59
Power Consumption ........................................................................................................................ 60
Maximum Power Dissipation.......................................................................................................... 60
Maximum Current Drain................................................................................................................. 60
Loop Attenuation............................................................................................................................. 61
H2TU-C-231 List 1F Card-Edge Connector................................................................................... 61
Network Management Control Bus .................................................................................. 62
Fuse Alarm........................................................................................................................ 62
System Alarm Output Pins................................................................................................ 62
Craft Port......................................................................................................................................... 63
Appendix B - Functional Operation _____________________________________________________ 64
Timing ............................................................................................................................................. 64
Ground Fault Detect........................................................................................................................ 64
Appendix C - Compatibility____________________________________________________________ 65
Appendix D - Product Support _________________________________________________________ 66
Technical Support............................................................................................................................ 66
Returns............................................................................................................................................. 66
Appendix E - Abbreviations____________________________________________________________ 68
Certification and Warranty______________________________________________ Inside Back Cover

152-231-116-01, Revision 01 List of Figures
H2TU-C-231 List 1F October 2, 2000 vii
LIST OF FIGURES
1. H2TU-C-231 List 1F Front Panel....................................................................................................................3
2. Installing the H2TU-C-231 List 1F into a Shelf..............................................................................................7
3. Logon Screen.................................................................................................................................................11
4. Configuration Menu - Date and Time...........................................................................................................12
5. Inventory Screen............................................................................................................................................13
6. Configuration Menu ......................................................................................................................................14
7. Configuration Menu - Standard Options (Defaults Shown)..........................................................................15
8. Configuration Menu - ADC Options (Defaults Shown)................................................................................15
9. Configuration Menu - Set Factory Defaults..................................................................................................24
10. Configuration Menu - Master Clear..............................................................................................................25
11. Sectionalized Analysis of the DS1 Interface.................................................................................................27
12. Monitor Screen - Active Loopback with Alarms ..........................................................................................28
13. H2TU-R DS1 31-Day Performance History .................................................................................................30
14. H2TU-R DS1 48-Hour Performance History................................................................................................31
15. H2TU-C DS1 25-Hour Performance History................................................................................................31
16. H2TU-R DS1 Current Statistics....................................................................................................................32
17. H2TU-C DS1 Current Statistics....................................................................................................................32
18. Performance Screen - Blockage Indicator History........................................................................................34
19. H2TU-C HDSL2 31-Day Performance History............................................................................................35
20. H2TU-C HDSL2 48-Hour Performance History ..........................................................................................35
21. H2TU-C HDSL2 25-Hour Performance History ..........................................................................................36
22. H2TU-C HDSL2 Current Statistics...............................................................................................................36
23. H2TU-C DS1 Alarm History Screen.............................................................................................................38
24. H2TU-R DS1 Alarm History Screen.............................................................................................................39
25. H2TU-C HDSL2 Alarm History Screen .......................................................................................................40
26. System Event Log Screen..............................................................................................................................41
27. H2TU-R Sectionalized Event Log Screen.....................................................................................................44
28. Sectionalized Events......................................................................................................................................45
29. H2TU-R LOS and AIS Response Priorities..................................................................................................48
30. Loopback Summary.......................................................................................................................................49
31. Loopback Modes...........................................................................................................................................54
32. H2TU-R Signal Generator Screen.................................................................................................................58
33. H2TU-C-231 List 1F Card-Edge Connector.................................................................................................61
34. RS-232 Craft Port Pinouts.............................................................................................................................63
35. H2TU-C-231 List 1F Block Diagram............................................................................................................64

List of Tables 152-231-116-01, Revision 01
viii October 2, 2000 H2TU-C-231 List 1F
LIST OF TABLES
1. Front-Panel Description................................................................................................................................... 4
2. Front-Panel Display Messages......................................................................................................................... 5
3. Navigational Keys for the HiGain Maintenance Terminal Screens............................................................... 10
4. Logon Screen Menus .................................................................................................................................... 11
5. H2TU-C-231 List 1F Standard Config Screen Options................................................................................. 16
6. H2TU-C-231 List 1F ADC Config Screen Options ...................................................................................... 17
7. DS1/DSX-1 24-hour PM Threshold .............................................................................................................. 20
8. Response to H2TU-R DS1 Frame Conversion Options ................................................................................ 21
9. Extended SuperFrame Format ....................................................................................................................... 21
10. SuperFrame Format ....................................................................................................................................... 22
11. Monitor Screen Descriptions ......................................................................................................................... 29
12. Error Acronyms Used on the DS1 Performance History Screens ................................................................. 33
13. Error Acronyms Used on the HDSL2 Performance History Screens............................................................ 37
14. DS1 Alarm Descriptions................................................................................................................................ 39
15. HDSL2 Alarm Descriptions........................................................................................................................... 40
16. Origin Tags .................................................................................................................................................... 42
17. Event Log Messages...................................................................................................................................... 43
18. Sectionalized Event Definitions..................................................................................................................... 45
19. Front-Panel System Alarms Summary ......................................................................................................... 46
20. Summary of HiGain Loopback Codes and Activation Methods ................................................................... 50
21. Addressable Repeater Loopback Commands (A1LB, A2LB, A5LB)........................................................... 55
22. Addressable Repeater Loopback Commands (A3LB and A4LB)................................................................. 57
23. Signal Generator Option Settings .................................................................................................................. 58
24. H2TU-C Power Parameters ........................................................................................................................... 60
25. HDSL2 Cable Attenuation Chart................................................................................................................... 61

152-231-116-01, Revision 01 Overview
H2TU-C-231 List 1F October 2, 2000 1
OVERVIEW
The H2TU-C-231 List 1F line unit is the Central Office (CO) side of a T1 transmission system. The HiGain
HDSL2 product family is fully compliant with the HDSL2 standard ANSI T1.418-2000. Providing full-rate T1
access using just a single copper pair, HDSL2 is a cost-effective solution that offers an open architecture. The open
architecture inherent in HDSL2 guarantees interoperability allowing simple and economic accommodation of
network growth.
HiGain HDSL2 products provide 1.552 Mbps transmission on one unconditioned copper pair over the full Carrier
Service Area (CSA) range. The CSA includes loops up to 12,000 feet of 24 AWG wire or 9,000 feet of 26 AWG
wire, including bridged taps.
FEATURES
•HDSL2 transmission features
–Lightning and power cross-protection on HDSL2 interfaces
–Full-duplex HDSL2 transmission on one pair at 1.552 Mbps
–Ultra-low wander (for Stratum 1 transport)
–Grounded loop detection on High-bit-rate Digital Subscriber Line 2 (HDSL2)
•Front-panel features
–Four-character status display
–DS1 splitting and bridging access
–Status Light Emitting Diodes (LEDs)
–RS-232 craft port for connection to a maintenance terminal
•HiGain HDSL2 maintenance screens for inventory, provisioning, and troubleshooting
–DS1 and HDSL2 performance monitoring
–Non-volatile alarm histories
–Performance Report Messaging (PRM) support for Supplemental PRM (SPRM) and Network PRM
(NPRM) at the H2TU-R
–Payload (PL) and HiGain (HG) loopback source identification
–Margin Alarm (MAL) threshold
–Dual loopback commands
–Remote provisioning through TL1 FDL or 11-bit payload commands
•Configuration options
–Selectable DSX-1 pre-equalizer
–Bipolar Violation Transparency (BPVT)
–Bit Error Rate (BER) alarm
–Power Back OffNetwork (PBON) and Power BackOff Customer (PBOC) options for configuring power
output levels

Overview 152-231-116-01, Revision 01
2 October 2, 2000 H2TU-C-231 List 1F
–Loss of Signal/Alarm Indication Signal (LOS/AIS) payload alarm
–Selectable loopback activation codes
•Compatible with Small Cross-Section Shelf (SXSS) and equipment
•Network Management and Administration (NMA) interface
COMPATIBILITY
The H2TU-C-231 is designed to mount in 220 mechanics shelves. For a list of compatible shelves, see
“Appendix C - Compatibility”on page 65.
APPLICATIONS
HiGain systems provide a cost-effective, easy-to-deploymethod fordelivering DS1 High CapacityDigital Service
(HCDS) over a single copper pair. HiGain systems support a multitude of network connections and system
models.
•The service is deployed over one unconditioned, non-loaded copper pair.
•Conventional, inline DS1 repeaters are no longer required.
•Cable pair conditioning, pair separation, and bridged tap removal are not required.
In general, HiGain systems:
•Operate effectively in the same cable binder group with other HDSL2 lines, HDSL, DS1, ADSL, SDSL,
POTS, and other transmission schemes.
•Can be used with customers requiring DS1 service on a temporary or permanent basis.
•Provide a means of quickly deploying service in advance of fiber-optic transmission systems.
DS1 is used throughout this document to refer to either the remote unit’s DS1 interface or the
line unit’s DSX-1 interface.