ADTRAN DDM+ H2TU-C Instruction Manual

Asynchrononous H2TU-C Line Cards for
Litespan Channel Bank Assemblies Using
Narrowband and Wideband Pairs
Installation and Maintenance Practice
Document Number: 61221002L1-5F
June 2007
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AHDSL2
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1221002L2 NB
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Litespan H2TU-C Installation and Maintenance Practice
ii 61221002L1-5F
Front Matter
Trademarks
Any brand names and product names included in this document are trademarks, registered
trademarks, or trade names of their respective holders.
Litepan is a registered trademark of Alcatel, Inc., Paris, France.
To the Holder of this Document
The contents of this document are current as of the date of publication. ADTRAN®reserves the
right to change the contents without prior notice.
In no event will ADTRAN be liable for any special, incidental, or consequential damages or
for commercial losses even if ADTRAN has been advised thereof as a result of issue of this
document.
901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
[phone]
©2007 ADTRAN, Inc.
All Rights Reserved.
®

61221002L1-5F iii
Revision History
Conventions
The following typographical conventions are used in this document:
This font indicates a cross-reference link.
This font indicates screen menus, fields, and parameters.
THIS FONT indicates keyboard keys (ENTER, ESC, ALT). Keys that are to be pressed simultaneously
are shown with a plus sign (ALT+Xindicates that the ALT key and Xkey should be pressed at the
same time).
This font indicates references to other documentation and is also used for emphasis.
This font indicates on-screen messages and prompts.
This font indicates text to be typed exactly as shown.
This font indicates silk-screen labels or other system label items.
This font is used for strong emphasis.
NOTE
Notes inform the user of additional, but essential, information or
features.
CAUTION
Cautions inform the user of potential damage, malfunction, or
disruption to equipment, software, or environment.
WARNING
Warnings inform the user of potential bodily pain, injury, or death.
Revision Date Description
AOctober 2001 Initial release
BMarch 2002 Clarifies use of wideband and narrowband cabling pairs
CJune 2003 Provides additional loopback code information and a TL1 tutorial
DApril 2006 Change to CLEI and software; convert to combined practice cover-
ing all three technologies
EJuly 2006 Change product CLEI codes
FJune 2007 Change product CLEI codes

Litespan H2TU-C Installation and Maintenance Practice
iv 61221002L1-5F
Training
ADTRAN offers training courses on our products. These courses include overviews on product
features and functions while covering applications of ADTRAN product lines. ADTRAN
provides a variety of training options, including customized training and courses taught at our
facilities or at customer sites.
For inquiries concerning training, contact ADTRAN:
Training Phone: [phone], ext. 6996
Training Fax: [phone]
Training Email: [email protected]

61221002L1-5F v
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Shipping Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Instructions for Installing the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Backplane Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
HDSL2 Deployment Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Appendix A
HDSL2 Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
HDSL MAINTENANCE MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Loopback Process Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Loopback Control Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B
Litespan H2TU-C Provisioning Tutorial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Overview of TL1 Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
TL1 Command Line Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Issuing TL1 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Litespan H2TU-C Installation and Maintenance Practice
vi 61221002L1-5F
Command Line Interface Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Communication With the Litespan System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Log on to the Litespan System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Log off the Litespan System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Provisioning the Litespan H2TU-C via TL1 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
HDSL Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
Initial HDSL Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15
Selected TL1 Commands for Provisioning, Maintenance, and Testing . . . . . . . . . . . . . . . . . . . . . . . . B-16
Edit T1 Grade of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-16
Initialize T1 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-17
Retrieve T1 Performance Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-18
Edit HDSL Grade of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-20
Initialize HDSL Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-21
Retrieve HDSL Performance Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-22
Retrieve HDSL Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-23
Operate HDSL Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-25
Release HDSL Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-26
Appendix C
Metallic Access Unit Testing Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
INITIATING MTAU TEST ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
CONN-JACK-T1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Removal of MTAU Test Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
DISC-JACK-T1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Appendix D
CBA Wideband Cabling Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
LiteSpan Shelf Cabling Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Appendix E
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
Warranty and Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
ADTRAN Sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
ADTRAN Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
ADTRAN Repair/CAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
Repair and Return Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Contents
61221002L1-5F vii
Figures
Figure 1. HDSL2 Span Power Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2. Deployment from a Litespan Channel Bank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3. HDSL2 Deployment Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure C-1. Split Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
Figure C-2. Monitor Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
Tables
Table 1. ADTRAN Litespan Channel Bank Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Compatible Remote Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table 3. Compliance Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 4. Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 5. HDSL and T1 Provisioning Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 6. Administrative Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 7. Maintenance Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 8. Worksheet PW-1 Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 9. Power Specifications for Litespan H2TU-C and H2TU-R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 10. HDSL2 Loss Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 11. Litespan H2TU-C Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 12. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table A-1. In-Band Addressable Loopback Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Table B-1. Retrieve T1 Cross-Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Table B-2. Delete Cross-Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-7
Table B-3. Retrieve T1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-8
Table B-4. Delete Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-9
Table B-5. Edit T1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-10
Table B-6. Enter T1 Cross-Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-12
Table B-7. Edit HDSL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-13
Table B-8. Edit T1 Grade of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-16
Table B-9. Initialize T1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-17
Table B-10. Retrieve T1 Performance Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-18
Table B-11. Edit HDSL Grade of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-20
Table B-12. Initialize HDSL Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-21
Table B-13. Retrieve HDSL Performance Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-22
Table B-14. Retrieve HDSL Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-23
Table B-15. Operate HDSL Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-25
Table B-16. Release HDSL Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-26
Table D-1. CBA Wideband Cabling/HDSL2 Loop 1 Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-2
Table D-2. Odd CBA Narrowband Cabling (Last Pair Unassigned)/HDSL2 Loop 1 Assignments . . . . . . . . . .D-3
Table D-3. Even CBA Narrowband Cabling (Last Pair Unassigned)/HDSL2 Loop 1 Assignments . . . . . . . . .D-4
Table D-4. ONU-96 Wideband Cabling/HDSL2 Loop 1 Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-5
Table D-5. ONU-96 Narrowbandband Cabling/HDSL2 Loop 1 Assignments . . . . . . . . . . . . . . . . . . . . . . . . .D-6

Litespan H2TU-C Installation and Maintenance Practice
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61221002L1-5F 1
Asynchrononous H2TU-C Line Cards for
Litespan Channel Bank Assemblies Using
Narrowband and Wideband Pairs
INTRODUCTION
The ADTRAN®Asynchrononous H2TU-C Line Cards for Litespan Channel Bank Assemblies
Using Narrowband and Wideband Pairs (Litespan H2TU-C) is a DS1 interface line card that
provides full T1 service over two-wire interface facilities.
Table 1 lists the three assemblies of the Litespan H2TU-C line cards covered in this practice.
DESCRIPTION
The Litespan H2TU-C line cards listed in Table 1 are designed to be deployed at Remote
Terminal (RT) locations in Alcatel®Litespan®2000, 2012, and Starspan®systems.
A DS1 circuit is extended to the Litespan H2TU-C at the RT from an Alcatel Central Office
Terminal (COT) equipped with an Alcatel ADS1U plug-in.
The Litespan H2TU-C functions as an H2TU-C office repeater in a Litespan RT Channel Bank
Assembly. It extends an HDSL2 circuit over the Litespan pairs for distances up to 12,000 feet
on the local loop.
Table 1. ADTRAN Litespan Channel Bank Assemblies
Part Number Description CLEI
1221002L1 H2TU-C Line Card for Litespan Using Narrowband/Wideband Pairs SLL6211D
1221002L2 H2TU-C Line Card for Litespan Using Narrowband Pairs SLL5R36G *
1221002L3 H2TU-C Line Card for Litespan Using Wideband Pairs SLL62XYD *
* Changed from previous document release

Litespan H2TU-C Installation and Maintenance Practice
261221002L1-5F
Features
The basic features of the Litespan H2TU-C include the following:
• Lightning and power cross-protection static discharge immunity and local power bus
fusing for line card safety and protection
• 1.544 kbps HDSL2 transmission over a single pair
• Front panel status LEDs
• Performance monitoring and alarm reporting
• Low power consumption
• Span powering for the ADTRAN HDSL2 remote unit (T200 H2TU-R Transceiver Unit for the
Remote End)
• Corrosion-preventive sealing current over a single twisted copper pair
• Troubleshooting functionality
Compatibility
The Litespan H2TU-C can be used in Litespan 2000, Litespan 2012, and Litespan ONU
channel bank assembly (CBA) systems that contain Litespan system software versions of
11.0.0 or later.
Each Litespan H2TU-C works with the following multiple list versions of the ADTRAN T200
H2TU-R Transceiver Units for the Remote End (H2TU-R).
Table 2. Compatible Remote Units
Part Number Description
1222024L6 T200 H2TU-R, Local Power
122x024L7 T200 H2TU-R, Local Power
122x024L9 T200 H2TU-R, Local Power
122x026L9 T200 H2TU-R, Span Power
122x026L1 T200 H2TU-R
122x026L6 T200 H2TU-R MON
1222026L5 T200 H2TU-R B
1222026L7 T200 H2TU-R S
x = any list series

Description
61221002L1-5F 3
Compliance
Table 3 shows the compliance codes for the Litespan H2TU-C. The Litespan H2TU-C is NRTL
listed to the applicable UL standards. Install the Litespan H2TU-C is in a restricted access
location.
The Litespan H2TU-C provides span-powering voltage, negative only, with respect to ground, –
190 VDC nominal, GFI protection < 5 mA), meeting all requirements of Telcordia GR-1089-
CORE (Class A2) and ANSI T1.418-2002.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by ADTRAN could void the user’s authority
to operate this equipment.
Table 3. Compliance Codes
Code Input Output
Power Code (PC) F C
Telecommunication Code (TC) – X
Installation Code (IC) A –

Litespan H2TU-C Installation and Maintenance Practice
461221002L1-5F
INSTALLATION
After unpacking the Litespan H2TU-C, inspect it for damage. If damage exists, file a claim with
the carrier then contact ADTRAN Customer Service. Refer to “Appendix E, Warranty” for
further information. If possible, keep the original shipping container to return the Litespan
H2TU-C for repair or for verification of shipping damage.
Shipping Contents
The contents include the following items:
• H2TU-C For Litespan Using Narrowband/Wideband Pairs Line Card
•H2TU-C For Litespan Using Narrowband/Wideband Pairs, Job Aid (P/N 61221002Lx-22)
CAUTION
Electrostatic discharge (ESD) can damage electronic modules.
When handling modules, wear an antistatic discharge wrist strap
to prevent damage to electronic components. Place modules in
antistatic packing material when transporting or storing. When
working on modules, always place them on an approved antistatic
mat that is electrically grounded.
Instructions for Installing the Module
Follow the steps below to install the Litespan H2TU-C.
1. If present, remove the Access Module Blank from the appropriate access module slot of
the chassis.
2. Pull the ejector latch from its closed position. The latch is located on the lower right-hand
side of the Litespan H2TU-C front panel.
3. Hold the Litespan H2TU-C by the front panel while supporting the bottom edge of the
module with the ejector latch opened to engage the chassis edge.
4. Align the module edges to fit in the lower and upper guide grooves for the access module
slot.
5. Slide the module into the access module slot. Simultaneous thumb pressure at the top
and at the bottom of the module ensures that the module is firmly positioned against the
backplane of the chassis.
6. Secure the module in place by pushing up and in on the ejector latch.
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.

Installation
61221002L1-5F 5
On installation, the Litespan H2TU-C runs a series of self-tests. Once the self-tests are
complete, the status LEDs reflect the true state of the hardware.
Front Panel LEDs
The Litespan H2TU-C provides front panel LEDs to display status information. Table 4 lists
the LEDs and status descriptions.
Table 4. Front Panel LEDs
Label Status Description
DSL Green
Yellow
Red
Flashing
HDSL2 SNR margin is optimum (6 dB or higher)
HDSL2 SNR margin is marginal (1 dB to 5 dB)
HDSL2 SNR margin is poor (0 dB)
HDSL2 pulse attenuation is > 30 dB
STAT Off
Green
Flashing Green
Red
Indicates loss of power to H2TU-C
Normal operation; H2TU-C is in sync with the H2TU-R
Acquiring HDSL2 synchronization with H2TU-R
Failure indication; unable to start/load firmware
RLOS Off
Red
DS1 signal from the CPE is present at H2TU-R
DS1 signal from the CPE is absent at H2TU-R or framing does not
match
HLOS Off
Red
Flashing Red
HDSL2 signal achieved
HDSL2 loss of synchronization
DC continuity fault detected on HDSL2 loop
HCRC Off
Yellow
Red
No HDSL2 CRC errors within the last 30 minutes
Four or more HDSL2 CRC errors in the last 30 minutes
HDSL2 CRC errors are being detected
ARM/LBK Off
Green
Yellow
Module is not armed or in loopback state
Module is in active loopback
Module is armed but not in loopback
B8ZS Off
Green
The line code is AMI
The line code is B8ZS

Litespan H2TU-C Installation and Maintenance Practice
661221002L1-5F
APPLICATIONS
The Litespan H2TU-C can be deployed in circuits consisting of one H2TU-C (line card) and one
H2TU-R (remote module). Lightning and power cross-protection is provided at each twisted
pair interface of the Litespan H2TU-C. Local power bus fusing protects the Litespan channel
bank backplane, Litespan bank power supplies, and neighboring Litespan line cards in the
event of catastrophic line card failure.
The Litespan H2TU-C uses a DC-to-DC converter to derive span powering voltage from the
Litespan –48 VDC switched battery supply. Simplex current of 30 mA may be coupled onto the
HDSL2 loop span to power the H2TU-R (Figure 1). Span powering voltages meet all require-
ments of Class A2 voltages, as specified by Telcordia GR-1089-CORE.
Figure 1. HDSL2 Span Power Diagram
The Litespan H2TU-C provides a cost-effective alternative for deploying T1 service over
metallic cable pairs. In contrast with traditional T1 service equipment, the Litespan H2TU-C
can successfully deploy over one unconditioned, non-loaded, bridged-tapped copper pair CSA
loops (Refer to “Provisioning” on page 9).
Litespan HDSL2 deployment is typically made from a Litespan 2000, Litespan 2012, or
Litespan ONU channel bank assembly. Figure 2 shows possible deployments of the Litespan
H2TU-C from a Litespan channel bank assembly.
The Litespan H2TU-C can be deployed quickly without the use of expensive T1 repeater
equipment on standard CSA loops, while using the existing massive copper-fed twisted line
pairs in use by the industry.
HDSL2
TIP (+)
RING (-)
SPAN POWER 190V
SPAN CURRENT

Applications
61221002L1-5F 7
Figure 2. Deployment from a Litespan Channel Bank
The Litespan H2TU-C uses negative ground-referenced span powering voltage (–190 VDC) on
the HDSL2 loop. H2TU-R span powering can be disabled to allow locally powered H2TU-R
applications, if desired.
Backplane Wiring
The Litespan H2TU-C plugs directly into a Litespan channel bank assembly channel unit slot.
Litespan system software must be version 11.0.0, or later. The tip and ring connections from
the H2TU-C to the shelf are made through the following card edge pins:
• 1221002L1 H2TU-C Line Card Using Narrowband/Wideband Pairs
– Narrowband Tip - Pin A3
– Narrowband Ring - Pin A4
– Wideband Tip - Pin C7
– Wideband Ring - Pin C8
• 1221002L2 H2TU-C Line Card Using Narrowband Pairs
– Narrowband Tip - Pin A3
– Narrowband Ring - Pin A4
• 1221002L3 H2TU-C Line Card Using Wideband Pairs
– Wideband Tip - Pin C7
– Wideband Ring - Pin C8
Common
Control
Channel Bank
Assembly with
a Litespan
H2TU-C
Installed
HDSL2 Unit
Remote End
HDSL2 Loop Pair
Litespan 2000 or 2012 System with Litespan H2TU-C deployment
Common
Control
High-Density
Fiber Bank
ONU-96 with
an installed
Litespan H2TU-C
OLNK
HDT
Typical Starspan System
HDSL2 Unit
Remote End
HDSL2 Loop Pair

Litespan H2TU-C Installation and Maintenance Practice
861221002L1-5F
NOTE
If using the Litespan H2TU-C in applications where narrowband
and wideband copper service wire pairs are connected
simultaneously, only one service pair may have terminating
equipment connected to the H2TU-C. Also, copper service wire
pairs not in use are considered as bridge taps to the HDSL2 loop in
service. Enter these into the deployment calculations listed in
“HDSL2 Deployment Guidelines” on page 13. If the bridged taps
presented by the unused loop violates the CSA guidelines,
disconnect the unused pair.
CAUTION
Do not deploy the Litespan H2TU-C into any Litespan Channel
Bank Assembly slot that has ADSL Power Distribution Fuse and
Alarm (PDFA) connections to the Wideband pairs of the Channel
Bank Assembly.
The Litespan H2TU-C supports narrowband and wideband cabling on the Litespan RT shelf.
For more information on cabling, reference Alcatel document OSP 363-305-270.
On insertion of the Litespan H2TU-C, the STAT LED should immediately turn red. The STAT
LED remains red until the Litespan bank recognizes the insertion of the Litespan H2TU-C and
downloads the AHDSL2 channel unit type code into the line card. Typically, the STAT LED
remains red for approximately 15 to 20 seconds (this time may vary). Approximately three to
four seconds after the STAT LED turns off, the HLOS LED turns red; it remains red until the
Litespan H2TU-C and H2TU-R synchronize with each other over the HDSL2 loop.
CAUTION
Before installing or removing the Litespan H2TU-C, observe the
following: If the Litespan H2TU-C is removed from a line card slot,
wait at least 15 seconds before reinsertion. If connected to the MTI
craft interface terminal, wait until the message “AID:MJ,UEQ.”
appears (“AID” is the access identifier). This informs the Litespan
common control assembly that the Litespan H2TU-C has been
removed from its slot, after which the common control assembly
begins looking for the reinsertion of the line card. Reinsertion any
earlier than this may temporarily lock the Litespan H2TU-C into a
nonfunctional state because the common control assembly will not
send the AHDSL2 equipment type code to the Litespan H2TU-C.

Provisioning
61221002L1-5F 9
PROVISIONING
Table 5 lists and defines the available provisioning options for the Litespan H2TU-C.
On initial insertion of the Litespan H2TU-C into the Litespan system, the Litespan H2TU-C is
provisioned with the configuration data stored in the shelf controller. Provision the Litespan
H2TU-C as indicated under “Pre-Configurable Value” in Table 5.
Provisioning of the Litespan H2TU-C is through the craft interface on the MTI card, either via
TL1 commands or Litecraft Pro. “Appendix B, Litespan H2TU-C Provisioning Tutorial” provides
TL1 commands for remote provisioning of the Litespan H2TU-C. The provisioning and perfor-
mance monitoring VT100 terminal screens are viewable from the H2TU-R DB-9 RS-232 craft
interface port. However, the provisioning options cannot be changed or manipulated in any
way from the H2TU-R.
NOTE
Please reference Alcatel®documentation for detailed information
regarding provisioning through the MTI craft interface.

Litespan H2TU-C Installation and Maintenance Practice 10 61221002L1-5F
Table 5. HDSL and T1 Provisioning Options
TL1 Commands H2TU-C Options Corresponding
Litespan
Parameter
H2TU-C
Available
Setting
Corresponding
Litespan Setting
Pre-Configurable
Value
ED-T1 Line Code LINECDE AMI
B8ZS
AMI
B8ZS
B8ZS
ED-T1 Framing (1) FMT SF
ESF
Unframed
Auto
SF
ESF
UNFR
AUTO
AUTO
ED-HDSL NIU Loopback NIDLPBK Disabled
Enabled
NO
YES
YES
ED-HDSL Loopback Timeout (1) LBKTMO 0
20 Minutes
60 Minutes
120 Minutes
0
20
60
120
120
ED-T1 DS1 TX Level AT 0
–7.5 dB
–15 dB
0.0
–7.5
–15
0.0
ED-HDSL New England Loopback (1, 2) LPBKACTR Disabled
Enabled
0000000000000000
0000000000000001
0000000000000000
ED-HDSL Latching Loopback FT1MODE T1
FT1
NO
YES
NO
ED-HDSL Span Power LP Disabled
Enabled
SINK
SOURCE
SOURCE
ED-HDSL Customer Loss Indicator (3) LPBKDEACTCDE AIS
AIS/CI
Loopback
0000000000000000
0000000000000001
0000000000000010
0000000000000001

Provisioning
61221002L1-5F 11
ED-HDSL PRM Setting LPBKACTC None
SPRM
NPRM
Auto (Both)
0000000000000000
0000000000000001
0000000000000010
0000000000000011
0000000000000001
ED-HDSL Network Keep Alive NTWKKPALV Disabled
Enabled
NO
YES
NO
1. Some settings may not be available at the H2TU-R.
2. This option is only available if the H2TU-R P/N 1221026L1, 1222026L1, 1223026L1 is used in the circuit.
3. This option is not available if the H2TU-R P/N 1221026L1, 1222026L1, 1223026L1 is used in the circuit.
Table 6. Administrative Commands
TL1 Commands Description
RMV-HDSL Removes the Litespan H2TU-C from service (OOS)
RST-HDSL2 Restores the Litespan H2TU-C to service (IS)
ENT-EQPT Enters or assigns a module to a slot position
DLT-EQPT Deletes or usassigns a module from a slot position
ED-HDSL or ED-T1 Edits the equipment
Table 7. Maintenance Commands
TL1 Commands Description
INIT-REG-HDSL or INIT-REG-T1 Clears performance monitoring data and sets all values to zero (0)
RTRV-PM-HDSL or RTRV-PM-T1 Retrieves performance monitoring data
RTRV-ALM-HDSL Retrieves alarms
Table 5. HDSL and T1 Provisioning Options (Continued)
TL1 Commands H2TU-C Options Corresponding
Litespan
Parameter
H2TU-C
Available
Setting
Corresponding
Litespan Setting
Pre-Configurable
Value

Litespan H2TU-C Installation and Maintenance Practice
12 61221002L1-5F
Power Requirements
When deploying any of the Litespan H2TU-Cs, the power requirements for the application
should also be considered for product mix calculations and maximum number of Litespan
H2TU-Cs within a channel bank assembly. Use Worksheet PW-1 in the Engineering and
planning section of Alcatel practice, OSP TL1 software documentation release 7.1 or higher, to
determine whether a particular combination of channel units is within power-drain specifica-
tions. Table 8 lists the ADTRAN Litespan H2TU-C and H2TU-R factors needed to calculate
channel bank power using Worksheet PW-1.
The Table 8 power factors are derived from the power specifications listed in Table 9.
Alarms
The selectable alarm threshold crossing alerts are as follows:
• SNR margin threshold
• HDSL2 and DS1 15-minute ES, SES, UAS thresholds
• HDSL2 and DS1 Daily ES, SES, UAS thresholds
• HDSL2 loop attenuation threshold
• DS1 15-minute CV-L, B8ZSS-L, and PDVS-L thresholds
• DS1 daily CV-L, B8ZSS-L, and PDVS-L thresholds
Additionally, the H2TU-C provides alarms for the following conditions:
Table 8. Worksheet PW-1 Factors
Configuration A Column Factor B Column Factor C Column Factor D Column Factor
Litespan H2TU-C NA NA NA 0.150 mA
Table 9. Power Specifications for Litespan H2TU-C and H2TU-R
Power Bus Litespan
H2TU-C and H2TU-R
–48 VDC talk battery 0.150 mA
Power consumption 7.2 watts
Power dissipation 4 watts
• HDSL2 LOSW alarm
• HDSL2 unit failure alarm
• HDSL2 loop continuity alarms
• HDSL2 circuit reset
• DS1 LOS alarm
• H2TU-R AIS, RAI, INCRAI-CI