ADC HiGain H2TU-C-231 User manual

HiGain
HiGain
TECHNICAL PRACTICE
4E
H2TU-C-231 List 4E Line Unit
Product Catalog: H2TU-C-231-L4E
CLEI: VACJDLHE

LTPH-TP-1034-01, Issue 1
ii September 28, 2001 H2TU-C-231 List 4E
Revision History of This Practice
To order copies of this document, use document catalog number LTPH-TP-1034-01.
Copyright
September 28, 2001
© 2001 ADC DSL Systems, Inc. All rights reserved.
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc.
HiGain is a registered trademark of ADC DSL Systems, 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 be modified, 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.
Issue Release Date Revisions Made
1September 28, 2001 Initial release.

LTPH-TP-1034-01, Issue 1 Using This Technical Practice
H2TU-C-231 List 4E September 28, 2001 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 64.
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. 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 as described in “Returns” on page 63. 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) symbol indicates that a device or assembly is susceptible to
damage from electrostatic discharge.
YENTER
CTRL ESC

Inspecting Shipment LTPH-TP-1034-01, Issue 1
iv September 28, 2001 H2TU-C-231 List 4E

LTPH-TP-1034-01, Issue 1 Table of Contents
H2TU-C-231 List 4E September 28, 2001 v
TABLE OF CONTENTS
Overview_____________________________________________________________________________1
Features..............................................................................................................................................1
Compatibility .....................................................................................................................................2
Applications.......................................................................................................................................2
Front Panel___________________________________________________________________________3
Installation ___________________________________________________________________________7
Verification ........................................................................................................................................8
Verification without an H2TU-R Remote Unit...................................................................8
Verification with an H2TU-R Remote Unit........................................................................8
Provisioning __________________________________________________________________________9
Using the MODE and SEL Pushbuttons............................................................................................9
Setting Options through MODE and SEL...........................................................................9
Resetting to Factory Defaults ............................................................................................10
Displaying System Parameter Settings..............................................................................10
Disabling an Alarm............................................................................................................10
Loopback Modes ...............................................................................................................10
Using a Maintenance Terminal........................................................................................................10
Connecting to a Maintenance Terminal.............................................................................10
Logon Screen.....................................................................................................................11
Provisioning Tasks...........................................................................................................................13
Setting Date and Time.......................................................................................................13
Setting Circuit ID Numbers...............................................................................................14
Configuring the System.....................................................................................................15
Clearing the History, Alarm, and Event Log Screens .......................................................26
Monitoring System Activity and Performance_____________________________________________28
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
Performance History at the HDSL2 Interface ...................................................................34
Using the Performance Screens to View Alarm Data......................................................................36
Alarm History at the DS1 Interface...................................................................................36
Alarm History at the HDSL2 Interface..............................................................................39
Using the System Event Log to Track Events .................................................................................40
Using the Report Menu....................................................................................................................42

Table of Contents LTPH-TP-1034-01, Issue 1
vi September 28, 2001 H2TU-C-231 List 4E
Testing _____________________________________________________________________________ 44
System Alarms................................................................................................................................. 44
Alarm Option for Digital Loop Carrier (DLC) Feed ........................................................ 45
Retiring System Alarms.................................................................................................... 45
Remote LOS and AIS Response....................................................................................... 46
OCT55 Test Pattern with AMI Code............................................................................................... 46
Loopback Operation........................................................................................................................ 47
Generic Loopback Commands.......................................................................................... 48
Special Loopback Commands........................................................................................... 48
SmartJack Loopback Commands...................................................................................... 49
Manual Loopback Session............................................................................................................... 49
In-Band Loopback Sessions............................................................................................................ 50
General Troubleshooting Tips .......................................................................................... 50
GNLB Test Procedures..................................................................................................... 50
A2LB Test Procedures...................................................................................................... 52
A3LB and A4LB Test Procedures .................................................................................... 54
SmartJack Test Procedure................................................................................................. 54
Appendix A - Specifications____________________________________________________________ 55
Power Consumption ........................................................................................................................ 56
Maximum Power Dissipation.......................................................................................................... 56
Maximum Current Drain................................................................................................................. 56
Loop Attenuation............................................................................................................................. 57
H2TU-C-231 List 4E Card-Edge Connector................................................................................... 58
Network Management Control Bus .................................................................................. 58
Fuse Alarm........................................................................................................................ 59
System Alarm Output Pins................................................................................................ 59
Craft Port......................................................................................................................................... 59
Appendix B - Functional Operation _____________________________________________________ 60
Timing ............................................................................................................................................. 61
Ground Fault Detect........................................................................................................................ 61
Appendix C - Compatibility____________________________________________________________ 62
Appendix D - Product Support _________________________________________________________ 63
Technical Support............................................................................................................................ 63
Returns............................................................................................................................................. 63
Appendix E - Abbreviations____________________________________________________________ 64
Certification and Warranty______________________________________________ Inside Back Cover

LTPH-TP-1034-01, Issue 1 List of Figures
H2TU-C-231 List 4E September 28, 2001 vii
LIST OF FIGURES
1. H2TU-C-231 List 4E Front Panel ....................................................................................................................3
2. Installing the H2TU-C-231 List 4E into a Shelf ..............................................................................................7
3. Logon Screen..................................................................................................................................................12
4. Config Menu - Date and Time........................................................................................................................13
5. Inventory Screen.............................................................................................................................................14
6. Config Menu...................................................................................................................................................15
7. Config Menu - Standard Options (defaults shown)........................................................................................16
8. Config Menu - ADC Options (defaults shown) .............................................................................................16
9. Config Menu - Set Factory Defaults ..............................................................................................................26
10. Config Menu - Master Clear...........................................................................................................................27
11. Monitor Screen - Active Loopback with Alarms ...........................................................................................28
12. H2TU-R DS1 31-Day Performance History ..................................................................................................30
13. H2TU-C DS1 48-Day Performance History ..................................................................................................31
14. H2TU-R DS1 25-Hour Performance History.................................................................................................31
15. H2TU-R DS1 Current Statistics.....................................................................................................................32
16. H2TU-C DS1 Current Statistics.....................................................................................................................32
17. H2TU-C HDSL2 31-Day Performance History.............................................................................................34
18. H2TU-C HDSL2 48-Hour Performance History ...........................................................................................34
19. H2TU-C HDSL2 25-Hour Performance History ...........................................................................................35
20. H2TU-C HDSL2 Current Statistics................................................................................................................35
21. H2TU-C DS1 Alarm History Screen..............................................................................................................37
22. H2TU-R DS1 Alarm History Screen..............................................................................................................37
23. H2TU-C HDSL2 Alarm History Screen ........................................................................................................39
24. System Event Log...........................................................................................................................................40
25. Report Menu - Full Report.............................................................................................................................42
26. H2TU-R LOS and AIS Response Priorities...................................................................................................46
27. Loopback Summary........................................................................................................................................47
28. Loopback Modes............................................................................................................................................51
29. H2TU-C-231 List 4E Card-Edge Connector..................................................................................................58
30. RS-232 Craft Port Pinouts..............................................................................................................................59
31. H2TU-C-231 List 4E Block Diagram ............................................................................................................60

List of Tables LTPH-TP-1034-01, Issue 1
viii September 28, 2001 H2TU-C-231 List 4E
LIST OF TABLES
1. Front-Panel Description................................................................................................................................... 4
2. Front-Panel Display Messages......................................................................................................................... 5
3. Navigational Keys for the Maintenance Terminal Screens ........................................................................... 11
4. Logon Screen Menus .................................................................................................................................... 12
5. H2TU-C-231 List 4E Standard Config Menu Options.................................................................................. 17
6. H2TU-C-231 List 4E ADC Config Menu Options........................................................................................ 18
7. DS1 and DSX-1 24-Hour PM Threshold....................................................................................................... 21
8. Response to H2TU-R DS1 Frame Conversion Options ................................................................................ 23
9. Extended SuperFrame Format ....................................................................................................................... 23
10. SuperFrame Format ....................................................................................................................................... 24
11. DDS NI and DS0 DP Latching Loopback Sequence..................................................................................... 24
12. HiGain HDSL2 Loopback vs. Latching Sequence........................................................................................ 25
13. Response of H2TU-C and H2TU-R to LOS and AIS.................................................................................... 25
14. Monitor Screen Descriptions ......................................................................................................................... 29
15. Error Acronyms Used on the DS1 Performance History Screens ................................................................. 33
16. Error Acronyms Used on the HDSL2 Performance History Screens............................................................ 36
17. DS1 Alarm Descriptions................................................................................................................................ 38
18. HDSL2 Alarm Descriptions........................................................................................................................... 39
19. Event Log Entry Messages List..................................................................................................................... 41
20. Report Types.................................................................................................................................................. 43
21. Front-Panel System Alarms Summary ......................................................................................................... 44
22. Summary of HiGain HDSL2 Generic Loopback Codes and Activation Methods........................................ 48
23. Addressable Repeater Loopback Commands (A2LB)................................................................................... 52
24. Addressable Repeater Loopback Commands (A3LB and A4LB)................................................................. 54
25. SmartJack Loopup and Loopdown Commands............................................................................................. 54
26. H2TU-C Power Parameters ........................................................................................................................... 56
27. HDSL2 Cable Attenuation Chart................................................................................................................... 57

LTPH-TP-1034-01, Issue 1 Overview
H2TU-C-231 List 4E September 28, 2001 1
OVERVIEW
The H2TU-C-231 List 4E 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 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 1.544 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 (Stratum 1 compliant)
–Grounded loop detection on High-bit-rate Digital Subscriber Line 2 (HDSL2)
–Sources sealing current when connected to an H2TU-R-402 List 5E or higher
•Front-panel provisioning 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
–MODE and SEL pushbuttons
•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
–Report menu option for downloading status and performance monitoring data to a file
•Configuration options
–Selectable DS1 pre-equalizer
–Bipolar Violation Transparency (BPVT)
–Bit Error Rate (BER) alarm
–Loss of Signal/Alarm Indication Signal (LOS/AIS) payload alarm
–Remote provisioning
–Selectable loopback activation codes

Overview LTPH-TP-1034-01, Issue 1
2 September 28, 2001 H2TU-C-231 List 4E
–Supports the in-band 100 loopdown command for all loopback modes
–Supports the in-band 100000 loopup command when SmartJack loopback (LPBK) option is enabled
–Power Back Off Customer (PBOC) and Power Back Off Network (PBON) options for configuring power
output levels
•Compatible with Small Cross-Section Shelf (SXSS) and equipment
•Digital Data Service (DDS) latching loopback
•Network Management and Administration (NMA) interface
•Supports interoperability
COMPATIBILITY
The H2TU-C-231 List 4E is designed to mount in 220 mechanics shelves. For a list of compatible shelves, see
“Appendix C - Compatibility” on page 62.
APPLICATIONS
HiGain HDSL2 systems provide a cost-effective, easy-to-deploy method for delivering T1 High Capacity Digital
Service (HCDS) over a single copper pair. HiGain HDSL2 systems support a multitude of network connections.
•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.
Each loop has no more than 35 dB of loss at 196 kHz, with driving and terminating impedances of 135Ω.In
general, HiGain HDSL2 systems:
•Operate effectively in the same cable binder group with other HDSL2 lines, HDSL, DS1, ADSL, SDSL,
POTS, DDS, 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.