ADTRAN HDSL2 User Manual
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®
HDSL2 for General Distribution
Installation and Maintenance Practice
Document Number: 61223HDSL2L2-5B
June 2005
Part Number Description CLEI
1181113L2 Total Access 3000 H2TU-C T1L71YLA_ _
1223001L2 220/E220 HDSL2 H2TU-C T1L722MA_ _
1223003L2 DDM+ HDSL2 H2TU-C T1L734NA_ _
1223004L2 3192 HDSL2 H2TU-C T1L746PA_ _
1223004L12 3192M HDSL2 H2TU-C T1L9DEFA_ _
1223024L2 T200 HDSL2 H2TU-R, Local/Span/60 mA Power T1L8EJEC_ _
1223026L2 T200 HDSL2 H2TU-R, Span Powered T1L8KMJC_ _
HDSL2 for General Distribution Installation and Maintenance Practice
Front Matter
Trademarks
Any brand names and product names included in this manual are trademarks, registered
trademarks, or trade names of their respective holders.
HiGain
®
is a registered trademark of ADC Telecommunications, Inc.
To the Holder of the Manual
The contents of this publication 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 publication.
®
901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
(256) 963-8000
©2005 ADTRAN, Inc.
All Rights Reserved.
Printed in U.S.A.
ii 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice
Revision History
Revision Date Description of Changes
A November 2004 Initial release
B June 2005 Add new product: 1223004L12, 3192M H2TU-C;
Edits to front panel graphics to add TScan; power descriptions; compatibility statements; appearance
Conventions
The following typographical conventions are used in this document:
This font indicates a cross-reference link. First-time references to tables and figures are
shown in this font.
This font indicates screen menus, fields, and parameters.
HIS FONT indicates keyboard keys (ENTER, ESC, ALT). Keys that are to be pressed simulta-
T
neously are shown with a plus sign (A
pressed at the same time).
LT+X indicates that the ALT key and X key should be
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 silkscreen 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.
61223HDSL2L2-5B iii
HDSL2 for General Distribution Installation and Maintenance Practice
Training
ADTRAN offers training courses on our products. These courses include overviews on product
features and functions while covering applications of ADTRAN’s product lines. ADTRAN
provides a variety of training options, including customized training and courses taught at our
facilities or at customer sites. For more information about training, please contact us.
Training Phone: 800-615-1176, ext. 7500
Training Fax: 256-963-6700
Training Email: training@adtran.com
iv 61223HDSL2L2-5B
Contents
Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
H2TU-C Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
H2TU-R Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Powering Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
H2TU-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
H2TU-R Span Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
H2TU-R Local Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Total Access 3000 and 220/E220 H2TU-C Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
All Other Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Total Access 3000 H2TU-C Edge Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Provisioning Options, Total Access 3000 H2TU-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
HDSL2 System Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
H2TU-C Bantam Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
H2TU-R Bantam Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
H2TU-R Front Panel Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
H2TU-C Front Panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Control Port Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Terminal Emulation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Logon to Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Logon to Main Menu, Total Access 3000 H2TU-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
HDSL2 Unit Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Total Access 3000 H2TU-C Provisioning Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Span Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Status Screen Legend Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Detailed Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Total Access 3000 H2TU-C Auto In Service Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Loopbacks and Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Total Access 3000 H2TU-C Loopback and Test Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
BERT Test Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Performance History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
61223HDSL2L2-5B v
Contents HDSL2 for General Distribution Installation and Maintenance Practice
Scratch Pad, Circuit ID, Time/Date Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Terminal Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Alarm History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
T1 Alarm History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
HDSL2 Span History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
HDSL2 Facility Alarm History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Event History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
System PM/Screen Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Clear PM and Alarm Histories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Troubleshooting Guidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Chronic Circuit Guidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
View Splice Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Splice Histogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Reset Splice Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Virtual Terminal Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Total Access 3000 H2TU-C Flash Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Boot Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
HDSL2 Deployment Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Appendix A
HDSL2 Loopbacks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
HDSL2 Loopback and Control Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Loopback Process Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
DDS Latching Loopback Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Loopback Control Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B
HDSL2 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
HDSL New Enhanced Feature Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
TScan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Splice Detection Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Splice Detection Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Screen Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
EOC Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
FDL Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
EEPROM Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Event Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Splice Detection Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Chronic Circuit Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
View Splice Results Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
View Splice Histogram Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7
Using the Bad Splice Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
Event History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Fault (GFI, Short) Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
vi 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice Contents
Fast Retrain Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10
Appendix C
Front Panel DSX and MUX Mode Test Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
DSX Mode Test Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
DSX MON, Tx to Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
DSX MON, Rx from Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
DSX EQ, Tx to Customer, Rx from Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
MUX Mode Test Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
MUX MON, Tx to Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
MUX MON, Rx from Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
MUX EQ, Tx to Network, Rx from the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
MUX EQ, Tx to Customer, Rx from Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
Appendix D
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Warranty and Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
ADTRAN Sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
ADTRAN Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
ADTRAN Repair/CAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Repair and Return Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Figures
Figure 1. ADTRAN HDSL2 Central Office Units for General Distribution . . . . . . . . . . . . . . . . . . . . . 2
Figure 2. ADTRAN HDSL2 Remote Units for General Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 3. HDSL2 Span Powering Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. HDSL2 Edge Connector Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 5. HDSL2 Edge Connector Wiring, continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6. HDSL2 Edge Connector Wiring, continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 7. Bantam Jack Arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8. HDSL2 Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 9. RS-232 (DB-9) Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 10. ADTRAN HDSL2 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 11. Logon Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 12. Total Access Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 13. Access Module Menus Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 14. Total Access 3000 H2TU-C Main Menu Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 15. ADTRAN Information Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 16. Provisioning Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 17. Provisioning Menu, Page 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 18. Provisioning Menu, Page 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 19. Span Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
61223HDSL2L2-5B vii
Contents HDSL2 for General Distribution Installation and Maintenance Practice
Figure 20. Span Status Screen, Total Access 3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 21. Status Screen Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 22. Detailed Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 23. Auto In Service Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 24. Loopback and Test Commands Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 25. Total Access 3000 H2TU-C Loopback and Test Commands Screen . . . . . . . . . . . . . . . 28
Figure 26. BERT Test Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 27. Select Data Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 28. BERT Test Functions - Enter Test Timeout Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 29. BERT Inject Errors Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 30. Performance History, 15-Minute Line Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 31. Performance Data Definitions, Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 32. Performance Data Definitions, Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 33. Scratch Pad, Circuit ID, and Date/Time Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 34. Terminal Mode Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 35. T1 Alarm History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 36. HDSL2 Span History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 37. HDSL2 Facility Alarm History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 38. Event History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 39. System PM/Screen Report Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 40. Clear PM and Alarm Histories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 41. Troubleshooting Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 42. Troubleshooting Guidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 43. General Information Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 44. Chronic Circuit Problems Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 45. View Splice Results Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 46. Histogram Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 47. Virtual Terminal Control Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 48. Total Access 3000 H2TU-C Flash Image Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 49. Download H2TU-C via Y-Modem Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 50. Flash Upgrade, Y-Modem in Progress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 51. Download H2TU-C via TFTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 52. Boot Block Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 53. HDSL2 Deployment Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure B-1. TScan Diagnostic Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
Figure B-2. Chronic Circuit Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-4
Figure B-3. Splice Results Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Figure B-4. Splice Histogram Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-7
Figure B-5. Event History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-9
Figure C-1. DSX MON, Tx to Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Figure C-2. DSX MON, Rx from Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Figure C-3. DSX EQ, Tx to Customer, Rx from Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Figure C-4. MUX MON, Tx to Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Figure C-5. MUX MON, Rx from Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Figure C-6. MUX EQ, Tx to Network, Rx from Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Figure C-7. MUX EQ, Tx to Customer, Rx from Customer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
viii 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice Contents
Tables
Table 1. HDSL2 Central Office Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. HDSL2 Remote Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 4. Compliance Codes, H2TU-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 5. Compliance Codes, H2TU-R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 6. Provisioning Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 7. Total Access 3000 Additional Provisioning Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 8. Front Panel Loopback Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 9. H2TU-C Front Panel LED Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 10. H2TU-R Front Panel LED Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 11. Auto In Service Status Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 12. HDSL2 Loss Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table 13. H2TU-C Troubleshooting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 14. H2TU-R Troubleshooting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 15. H2TU-C Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table 16. H2TU-R Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table A-1. HDSL2 Loopback Control Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Table A-2. In-Band Addressable Loopback Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
61223HDSL2L2-5B ix
Contents HDSL2 for General Distribution Installation and Maintenance Practice
x 61223HDSL2L2-5B
HDSL2 for General Distribution
PRODUCT DESCRIPTION
The HDSL2 modules referenced in this document are used to deploy a T1 circuit using 2-wire
metallic facilities.
HDSL2 provides extended range to DS1/T1 transport while providing spectral compatibility
with ADSL and other transport technologies. The ADTRAN HDSL2 Transceiver Unit for
Central Office (H2TU-C) works in conjunction with the ADTRAN HDSL2 Transceiver Remote
Unit (H2TU-R) to provide a DS1 service up to 12,000 feet on the local loop.
The H2TU-C receives DSX-1 signals, converts them and provides HDSL2 signals to the local
loop. The H2TU-R receives the HDSL2 signals from the H2TU-C and provides DS1 signals to
the customer.
Features available on these products are described in detail in “Appendix B, HDSL2 Features”.
Table 1 lists the ADTRAN HDSL2 Central Office modules approved for general distribution.
Table 1. HDSL2 Central Office Modules
HDSL2 Module Part Number CLEI Code
Total Access 3000 HDSL2 Transceiver Unit for Central Office (H2TU-C) 1181113L2 T1L7HYLA_ _
220 HDSL2 Transceiver Unit for Central Office (H2TU-C) 1223001L2 T1L7J2MA_ _
DDM+ HDSL2 Transceiver Unit for Central Office (H2TU-C) 1223003L2 T1L7K4NA_ _
3192 HDSL2 Transceiver Unit for Central Office (H2TU-C) 1223004L2 T1L7L7PA_ _
3192M HDSL2 Transceiver Unit for Central Office (H2TU-C) 1223004L12 T1L9DEFA_ _
Table 2 lists the ADTRAN HDSL2 remote modules approved for general distribution.
Table 2. HDSL2 Remote Modules
HDSL2 Module Part Number CLEI Code
T200 HDSL2 Transceiver Remote Unit (H2TU-R), Locally Powered 1223024L2 T1L8FJFC_ _
T200 HDSL2 Transceiver Remote Unit (H2TU-R), Span Powered 1223026L2 T1L8MOKC_ _
61223HDSL2L2-5B 1
Product Description HDSL2 for General Distribution Installation and Maintenance Practice
Illustrations
Figure 1 illustrates the front panels of the ADTRAN H2TU-C modules approved for general
distribution.
1223001L2
118111 3L 2
TX
E
Q
RX
TX
M
O
N
RX
DSL
DSX/DS1
ALM
ESF/ SF
(YEL) (GRN)
B8ZS/AMI
(YEL) (GRN)
LBK
1223004L12
1
1223003L2
DSL
DSX
DSX EQ
/DS1
TX
DSX MON
ALM
ESF
/SF
RX
B8ZS
/AMI
LBK
TX
RX
DSL
DSX
/DS1
ALM
ESF
/SF
B8ZS
/AMI
LBK
DSX EQ
TX
RX
TX
RX
DSX MON
DSL
DSX
/DS1
ALM
ESF
/SF
B8ZS
/AMI
LBK
1223004L2
DSX EQ
TX
RX
TX
RX
DSX MON
R
S
2
3
2
220 H2TU-C
P/N 1223001L2
DDM+ H2TU-C
P/N 1223003L2
3192M H2TU-C
P/N 1223004L12
3192 H2TU-C
P/N 1223004L2
Figure 1. ADTRAN HDSL2 Central Office Units for General Distribution
Total Access 3000
H2TU-C
P/N 1181113L2
2 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice Product Description
Figure 2 illustrates the front panels of the ADTRAN H2TU-R modules approved for general
distribution.
1223024L2
LOCAL
DSL
DS1
ALM
SF
ESF/
(YEL)
(GRN)
B8ZS
/
AMI
(GRN)
(YEL)
LLB
/
RLB
(GRN)
(YEL)
LOC
L
B
K
REM
TX
C
M
U
O
S
N
T
RX
R
S
2
3
2
T200 H2TU-R,
LOCAL POWERED
P/N 1223024L2
1223026L2
DSL
DS1
ALM
SF
ESF/
(YEL)
(GRN)
B8ZS
/
AMI
(GRN)
(YEL)
LLB
/
RLB
(GRN)
(YEL)
LOC
L
B
K
REM
TX
C
M
U
O
S
N
T
RX
R
S
2
3
2
T200 H2TU-R,
SPAN POWERED
P/N 1223026L2
Figure 2. ADTRAN HDSL2 Remote Units for General Distribution
The H2TU-R is a T200 mechanics card which will fit Type 200 or Type 400 mechanics enclosures, as listed in
Table 3. This table also provides reference information on the ADTRAN enclosures.
Table 3. H2TU-R Enclosure Compatibility
Part Number Description
1242007Lx HR12 Metal Enclosure Remote Shelf 61242007LX-5x
1242008L1 HR4 Remote Housing 61242008L1-5
1242034L2 T400 Single Mount (removable RJ-48 jacks) 61242034L2-5
1242034L3 T400 Single-Mount High Voltage Enclosure 61242034L3-5
1245034L1
1. In all applications the H2TU-C must be installed in NEBS compliant and UL listed enclosures to insure full
compliance with this unit.
2 The T200 Dual-Mount housing (P/N 1245034L1) is required when using the T200 H2TU-C for HDSL Loop Support System
(HLSS
TM
) protection circuits.
2
T200 Dual-Mount Installation/Maintenance 61245034L1-5
1
Document Number
61223HDSL2L2-5B 3
Product Description HDSL2 for General Distribution Installation and Maintenance Practice
Compliance
ADTRAN HDSL2 modules are NRTL listed to the applicable UL standards. The HDSL2
modules are to be installed in a restricted access location and in a type “B” or “E” enclosure
only.
These devices comply 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.
H2TU-C Compliance
Table 4 shows the compliance codes for the H2TU-C modules.
Table 4. Compliance Codes, H2TU-C
Code Input Output
Power Code (PC) F C
Telecommunication Code (TC) – X
Installation Code (IC) A –
The H2TU-C modules provide span powering voltage (negative only with respect to ground,
–190 VDC nominal, GFI protection <5 mA) and meets requirements of Bellcore
GR-1089-CORE (Class A2) and ANSI T1.418-2002.
H2TU-R Compliance
Table 5 shows the compliance codes for the H2TU-R modules.
Table 5. Compliance Codes, H2TU-R
Code Input Output
Power Code (PC) C C
Telecommunication Code (TC) X X
Installation Code (IC) A –
The H2TU-R modules must only be installed in shelves or mountings that utilize pin 27 of the
edge connector as a frame ground.
4 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice Installation Guidelines
INSTALLATION GUIDELINES
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
After unpacking an HDSL2 module, inspect it for damage. If damage has occurred, file a claim
with the carrier, then contact ADTRAN Customer Service. For more information, refer to
“Appendix D, Warranty”.
If possible, keep the original shipping container for returning the module for repair or for
verification of shipping damage.
CAUTION
Electronic modules can be damaged by Electro-Static Discharge
(ESD). 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.
ADTRAN HDSL2 modules plug directly into the enclosure. Installation wiring is not required.
WARNING
Up to –200 VDC may be present on telecommunications wiring.
The DSX-1 interface is intended for connection to intra-building
wiring only. Ensure chassis ground is properly connected.
NOTE
These products are intended for installation in restricted access
locations only.
61223HDSL2L2-5B 5
Installation Guidelines HDSL2 for General Distribution Installation and Maintenance Practice
Powering Options
H2TU-C
An H2TU-C module is capable of span powering an H2TU-R module by applying current to the
local loop. Current from 10 to 150 mA is coupled onto an HDSL2 span to power the H2TU-R
module when required. Figure 3 shows the HDSL2 span powering diagram.
SPAN CURRENT
TIP (+)
HDSL2
SPAN POWER
190 V
RING (-)
Figure 3. HDSL2 Span Powering Diagram
H2TU-R Span Power
The H2TU-R P/N 1223026L2 receives span power from the H2TU-C.
H2TU-R Local Power
In some circumstances a locally powered remote unit is required. The H2TU-R
P/N 1223024L2 can meet those needs.
Module Installation
Follow the step-by-step procedures below to put the HDSL2 modules in service.
Total Access 3000 and 220/E220 H2TU-C Installation
To install the Total Access 3000 H2TU-C (P/N 1181113L2) or 220 H2TU-C module (P/N
1223001L2), perform the following steps:
1. Pull the ejector latch, located on the bottom of the module front panel, out from the closed
position.
2. Hold the unit by the front panel while supporting the bottom edge of the module with the
ejector latch opened to engage the enclosure edge.
3. Align the unit edges to fit in the lower and upper guide grooves for the module slot.
6 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice Installation Guidelines
4. Slide the unit into the module slot. Simultaneous thumb pressure at the top and bottom
of the unit will ensure that the module is firmly seated against the backplane of the
chassis.
5. Secure the module in place by pushing in on the ejector latch.
All Other Modules
To install any of the HDSL2 modules, with the exception of those explained above, perform the
following steps:
1. Hold the unit by the front panel while supporting the bottom edge of the module and
engage the enclosure edge.
2. Align the unit edges to fit in the lower and upper guide grooves for the enclosure slot.
3. Slide the unit into the access module slot. Simultaneous thumb pressure at the top and at
the bottom of the unit will ensure that the module is firmly seated against the backplane
of the enclosure.
NOTE
For the locally powered H2TU-R (P/N 1223024L2), a local power
supply (P/N 1353.DSK48V04) is available from ADTRAN.
Initialization
When a module is first installed, it performs a series of self-tests. Once the power up self-test
is complete, the status LEDs will reflect the true state of the hardware. For more information,
refer to “H2TU-C Front Panel Operation” on page 16 for LED indications.
61223HDSL2L2-5B 7
Connections HDSL2 for General Distribution Installation and Maintenance Practice
CONNECTIONS
An H2TU-C module occupies one card slot in the respective Office Repeater Bay for which it is
named. Power and alarm signals are provided to the module through the backplane of the
shelf. DSX-1 and HDSL2 loop signals are connected to the wire-wrap pins or mass termination (amphenol) shelf connectors corresponding to the slot the module occupies.
Figure 4, Figure 5, and Figure 6 specify the edge connection wiring required for proper
operation.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
-48 VDC RET
15
16
17
18
19
20
21
22
23
24
25
HDSL2 Tip (Wire-Wrap)
26
HDSL2 Ring (Wire-Wrap)
27
28
29
30
31
32
Fuse Alarm
33
34
35
36
37
38
39
-48 VDC (1)
40
41
DSX-1 Rx In Tip (Wire-Wrap) Input to H2TU-C
42
DSX-1 Rx In Ring (Wire-Wrap) Input to H2TU-C
43
44
-48 VDC RET
45
46
47
48
DSX-1 Tx Out Tip (Wire-Wrap) Output from H2TU-C
49
DSX-1 Tx Out Ring (Wire-Wrap) Output from H2TU-C
50
100
HDSL2 Tip
101
HDSL2 Ring
102
103
104
105
106
107
108
DSX-1 Rx Tip
109
DSX-1 Rx Ring
110
111
112
113
DSX-1 Tx Tip
114
DSX-1 Tx Ring
115
116
Fuse Alarm (to Alarm Module)
117
-48 VDC Return
118
Frame Ground
119
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
-48 VDC
217
-48 VDC Return
218
-48 VDC Return
219
220 Edge
Connector Wiring
DDM+ Edge
Connector Wiring
Figure 4. HDSL2 Edge Connector Wiring
8 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice Connections
R Tx DSX (In from DSX)
1
R1 Rx DSX (Out to DSX)
2
3
4
GND
5
6
7
-48 VDC
8
R HDSL2 Loop
9
Fuse Alarm (to Alarm Module)
10
T Tx DSX (In from DSX)
A
T1 Rx DSX (Out to DSX)
B
C
D
E
F
H
Frame Ground
J
T HDSL2 Loop
K
L
3192 Edge
Connector Wiring
R Tx DSX (In from DSX)
1
R1 Rx DSX (Out to DSX)
2
3
4
GND
5
6
HMU Management Bus
7
-48 VDC
8
R HDSL2 Loop
9
Fuse Alarm (to Alarm Module)
10
T Tx DSX (In from DSX)
A
T1 Rx DSX (Out to DSX)
B
C
D
E
F
RCV LOS (To Alarm Module)
H
Frame Ground
J
T HDSL2 Loop
K
L
Chassis Ground
1
2
3
4
DS1 RX Out Tip
5
6
HDSL2 Loop Tip
7
8
9
10
Chassis Ground
11
12
13
14
DS1 RX Out Ring
15
16
-48 VDC Return
17
18
19
VCC (+5 VDC)
20
21
22
23
24
25
26
Chassis Ground
27
28
29
30
31
32
33
34
-48 VDC
35
36
37
38
39
PROT-1
40
41
42
43
44
45
46
47
48
DS1 TX In Ring
49
50
51
52
53
54
DS1 TX In Tip
55
3192M Edge
Connector Wiring
T200 H2TU-R Edge
Connector Wiring
Figure 5. HDSL2 Edge Connector Wiring, continued
61223HDSL2L2-5B 9
Provisioning HDSL2 for General Distribution Installation and Maintenance Practice
Total Access 3000 H2TU-C Edge Connector
The Total Access 3000 shelf delivers DSX-1 from the network to the H2TU-C via connectors on
the backplane labeled
the backplane connector labeled
the DSX connections for the H2TU-C in slot 1. Pins 2 and 34 of these connectors are
associated with slot 2. Pins 3 and 35 are associated with slot 3, and so forth, up to pins 28
and 60 for slot 28.
P2, Row A P2, Row B P2, Row C
1
2
- 48 volt return
3
4
5
6
7
8
9
10
11
12
Interrupt Request
13
14
MUX B Receive Data
15
MUX A Receive Clock
16
MUX A Receive Data
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Pair 7 and Pair 8. The HDSL2 signal is provided toward the customer via
Pair 2. Pins 1 and 33 of the connectors Pair 7 and Pair 8 are
1
Chassis ground
2
Chassis ground
3
4
5
6
7
8
9
SCU Control Lead
10
Fuse alarm
11
Interrupt Request Select
12
13
MUX B Transmit Clock
14
15
MUX A Transmit Clock
16
17
18
19
20
21
22
23
Test access bus Loop ring
24
Test access bus Loop tip
25
Receive DSX-1 Ring backup connection
26
Transmit DSX-1 Ring backup connection
27
28
29
Receive DSX-1 Ring normal connection
30
Transmit DSX-1 Ring normal connection
31
32
- 48 volt return
1
- 48 volt DC A
2
- 48 volt DC A
3
4
HDSL2 Loop Ring (facility)
5
HDSL2 Loop Tip (facility)
6
7
8
9
SCU Control Lead
10
SCU Control Lead
11
SCU Serial Interface
12
13
MUX B Transmit Data
14
MUX B Receive Clock
15
MUX A Transmit Data
16
17
18
19
20
21
22
23
24
25
Receive DSX-1 Tip backup connection
26
Transmit DSX-1 Tip backup connection
27
28
29
Receive DSX-1 Tip normal connection
30
Transmit DSX-1 Tip normal connection
31
- 48 volt DC B
32
- 48 volt DC B
Total Access 3000
H2TU-C Edge Connector Wiring
Figure 6. HDSL2 Edge Connector Wiring, continued
PROVISIONING
HDSL2 Configuration is performed via software control. For more information, refer to
“Control Port Operation” on page 17. The provisioning settings can be viewed and manipu-
lated through access to the firmware via the front panel RS-232 port. Table 6 lists the
available provisioning options and their factory default settings.
10 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice Provisioning
Table 6. Provisioning Options
Provisioning Option Option Settings Default Settings
1. DSX-1 Line Build Out
1
0-133 feet, 133-266 feet,
0 to 133 feet
266-399 feet, 399-533 feet,
533-655 feet, EXTERNAL
2. DSX-1/DS1 Line Code B8ZS, AMI B8ZS
3. DSX-1/DS1 Framing SF, ESF, Unframed, Auto ESF
4. Force Frame Conversion Disabled, Enabled Disabled
5. Smartjack Loopback Disabled, Enabled Enabled
6. Loopback Time Out None, 120 Min 120 Minutes
7. Latching Loopback Mode
2
T1 (Disabled), FT1 (Enabled) T1 (Disabled)
8. DS1 Tx Level 0 dB, –7.5 dB, –15 dB 0 dB
9. Span Power Enabled, Disabled Enabled
10. Customer Loss Indicator
3
AIS, Loopback, AIS/CI AIS/CI
11. Performance Reporting Messages None, SPRM, NPRM, AUTO (both) AUTO
12. Loop Attenuation Alarm Threshold 0 (Disabled), 1-99 dB 30 dB
13. SNR Margin Alarm Threshold 0 (Disabled), 1-15 dB 04 dB
14. Remote Provisioning Disabled, Enabled Enabled
15. Shelf Alarm
2. External is used only for Kentrox shelves. Unit transmits 12-volt p-p to DSX panel.
3. Latching Loopback Mode
• T1 - When optioned for T1 mode, the unit does not respond to DDS Latching Loopback codes.
• FT1 (Fractional T1) - DDS Latching Loopback operation is supported. The H2TU-C units which are in the
HDSL circuit are treated as Identical Tandem Data ports and the HTU-R is treated as a different Tandem
Data port.
Note: When operating in FT1 mode and during periods of T1 loss of signal, LOS, or T1 AIS from the customer
CI, the HDSL system will send in the network direction from the HTU-C a Fractional DS1 idle signal
consisting of a repeating 7E (HEX) byte payload within a framed/unframed T1 signal. In addition,
when optioned for FT1 mode, the setting for Customer Loss Response is ignored.
4. Customer Loss Indicator
• AIS - Send AIS to network upon T1 loss of signal or T1 AIS from customer.
• LPBK - HTU-R initiates a network loopback upon T1 loss of signal or T1 AIS from customer.
• AIS/CI - HTU-R sends customer disconnect indication upon loss of signal, loss of synchronization, or receipt
of T1 AIS from customer.
Note: The CI is generated by transmitting the framing received from the network while overwriting the
payload with a repeating pattern. For applications where the DS1 is Extended Superframe, the data
link is overwritten with a Yellow Alarm that is interrupted once every second by a 100 milli-second
code burst of 7E (HEX).
5. Shelf Alarm is on the DDM+, 3192M, and 3192 Units only.
4
Disabled, Enabled Enabled
61223HDSL2L2-5B 11
HDSL2 System Testing HDSL2 for General Distribution Installation and Maintenance Practice
Provisioning Options, Total Access 3000 H2TU-C
The Total Access 3000 H2TU-C is provisioned through the SCU on the Total Access 3000
chassis. In addition to the options shown in Table 6 on page 11, the options shown in Table 7
apply.
Table 7. Total Access 3000 Additional Provisioning Options
Provisioning Option Option Settings Default Settings
15. Service State
1
In Service;
Out-of-Service Unassigned;
Out-of-Service
Maintenance
Out-of-Service Maintenance
16. Network Source
2
DSX, MUX A, MUX B, Auto MUX DSX
17. External Alarms Enabled, Disabled Disabled
18. Auto In Service Disabled, Enabled Enabled
19. Auto IS Startup Period 1 hour, 4 hours, 8 hours,
4 hours
24 hours
20. Auto IS Off Period 1 hour, 4 hours, 8 hours,
8 hours
24 hours
1. The Service State defaults to Out-of-Service Maintenance. This setting allows active connections to the DSX or
MUX interface; however, no alarms will be generated. Out-of-Service Unassigned allows the loops to train up
but will not connect to the DSX or MUX interface. The In Service setting allows full functioning connections to
DSX or MUX interfaces.
2. For Network Source settings, the following options apply:
• DSX-1: The module will utilize the DSX-1 interface. The Muxes will not be used, even if present.
• Mux A: The module will use Mux A as its data source. The module will not switch to Mux B in the case of a
Mux A failure. The EQ jacks can be used as a temporary test point in conjunction with the EQ jack setting
on the loopback/test screen.
• Mux B: The module will use Mux B as its data source. The module will not switch to Mux A in the case of a
Mux B failure. The EQ jacks can be used as a temporary test point in conjunction with the EQ jack setting
on the loopback/test screen.
• Auto Mux: The module will default to Mux A as its data source. In the event of a Mux A failure, the module
will perform a protection switch to Mux B if it is present and in service. The EQ jacks can be used as a
temporary test point in conjunction with the EQ jack setting on the loopback/test screen.
HDSL2 SYSTEM TESTING
The ADTRAN HDSL2 system provides the ability to monitor the status and performance of the
DSX-1 signals, DS1 signals, and HDSL2 loop signals. Detailed performance monitoring is
provided by the front panel-mounted RS-232 control port (or via the SCU RS-232 port for the
Total Access 3000). These features are valuable in troubleshooting and isolating any system
level problems that may occur at installation or during operation of the HDSL2 system.
Additional testing features are described below.
12 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice HDSL2 System Testing
H2TU-C Bantam Jacks
The front panel of an H2TU-C module contains both metallic splitting (EQ) and monitor (MON)
bantam jacks.
The
EQ jacks provide an intrusive access point, interrupting signal access to the local loop.
This will enable the user to transmit a test signal toward an H2TU-R module and to receive a
test signal from an H2TU-R module.
The
MON jacks, when connected to a bit-error rate test set that is configured for monitor
(bridging) mode, provide a nonintrusive test access point for observing the transmit or receive
signal. In this configuration, synchronization, test patterns, and other functions can be
observed.
Alternatively, the
MON jacks can also be used for intrusive testing toward the network. To
utilize this configuration, perform the following steps:
1. Disconnect the H2TU-C DSX-1 interface by opening both the metallic splitting
EQ
jacks with either a bantam open plug or a bantam test cord that is not terminated.
TX and RX
2. Configure a test set for Terminate mode.
3. Connect the test set to the
MON jacks. (Test access toward the network equipment is
achieved).
4. Connect the output (TRANS) of the test set to the
test set to the
MON TX jack.
MON RX jack, and the input (REC) of the
NOTE
For additional Bantam Jack testing from the Total Access 3000
H2TU-C (P/N 1181113L2), refer to “Appendix C, Front Panel DSX
and MUX Mode Test Access”.
H2TU-R Bantam Jacks
The DS1 monitoring from the H2TU-R is accomplished using the MON bantam jacks.
The jacks labeled
MON provide a test access point for monitoring the transmit and receive
signals at the DS1 interface point. The bridging jacks can be used in two different ways:
1. The bridging jack of an H2TU-R module provides a nonintrusive tap onto a signal line and
permits the connection of test equipment to monitor the characteristics of the signal with
the DS1 test set optioned for Bridging mode.
2. If the DS1 test set is optioned for Terminate mode and the customer DS1 is disconnected,
then the bridging jack of an H2TU-R module provides an intrusive tap and could be used
to transmit and receive signals between an H2TU-R module and the network.
Figure 7 illustrates the complete bantam jack arrangement and details for specific jacks.
61223HDSL2L2-5B 13
HDSL2 System Testing HDSL2 for General Distribution Installation and Maintenance Practice
T1
DSX-1
R1
DSX-1
BRG
Rx
H2TUR
T
R
EQ
DSX-1
DSX-1
BRG
T
R
Rx
H2TU-C
DATA
EQ
Tx
Tx
PUMP
POWER
HDSL2
Tx
DS1
MON
Rx
CPE
DS1
INTERFACE
T1
R1
H2TU-C Bantam Jack Arrangement
(except DDM+ H2TU-C)
H2TU-R Bantam Jack Arrangement
Figure 7. Bantam Jack Arrangements
Loopbacks
The ADTRAN HDSL2 modules respond to three different loopback activation processes. These
processes may be utilized to provide a loopback that affects either an H2TU-C or an H2TU-R
module (locally or remotely).
1. Loopbacks may be activated using the craft interface. The Loopback Options screen that
provides for the H2TU-C and H2TU-R loopbacks is described in “Control Port Operation”
on page 17.
2. The modules respond to the industry standard for HDSL loopbacks. A detailed description
of these loopback sequences is given in “Appendix A, HDSL2 Loopbacks”.
3. HDSL2 modules respond to loopbacks depending on the module type as follows:
• H2TU-C modules respond to loopbacks initiated using the software functions described
in 1 and 2 above.
• H2TU-R modules respond to loopbacks initiated using front panel pushbuttons. See
Table 8.
ADTRAN HDSL2 modules contain smartloop technology which constantly monitors the DSX-1
for a framing pattern. ADTRAN HDSL2 modules will initiate the proper loopback regardless of
how the loopback control sequence is sent (framed or unframed).
The loopback condition imposed in both cases is a logic level loopback at the point within an
H2TU-C module where the DSX-1 signal passes into the HDSL2 modulators. Figure 8 depicts
all of the loopback locations possible with ADTRAN HDSL2 equipment.
14 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice HDSL2 System Testing
In addition to network-side loopbacks, an H2TU-C module provides customer-side loopbacks
initiated by using either the terminal control port or in-band loop codes. For more information, refer to “Appendix A, HDSL2 Loopbacks”. In this mode, an AIS signal (all ones) is
supplied to the network.
DSX-1
DSX-1
DSX-1
DSX-1
H2TU-C Network-Side Loopback
LOCAL
H2TU-C
H2TU-R Network-Side Loopback or
H2TU-C
H2TU-R Customer-Side Loopback
X
AIS
H2TU-C
H2TU-C Customer-Side Loopback
X
AIS
H2TU-C
H2TU-C
LOOP
H2TU-R NIU Loopback
LOCAL
LOOP
LOCAL
LOOP
LOCAL
LOOP
H2TU-R Bilateral Loopback
LOCAL
LOOP
X = Signal Inactive
H2TU-R
H2TU-R
H2TU-R
H2TU-R
H2TU-R
AIS
X
X
DS1
AIS
DS1
DS1
DS1
DS1DSX-1
Figure 8. HDSL2 Loopbacks
H2TU-R Front Panel Pushbuttons
Two loopback (LBK) pushbuttons are accessible from the front panel of the H2TU-R. The REM
loopback button controls a customer loopback at the H2TU-C. The
controls a bidirectional loopback at the H2TU-R. Table 8 details the loopback pushbutton
operation.
Table 8. Front Panel Loopback Pushbuttons
Switch Label Function
REM
LOC
Pressing this button changes the H2TU-C loopback state as follows:
• If the H2TU-C is not in loopback, pressing this button will activate a bilateral
loopback.
• If the H2TU-C is in loopback, pressing this button will deactivate the bilateral
loopback.
Pressing this button changes the H2TU-R loopback state as follows:
• If the H2TU-R is not in loopback, pressing this button will activate a bilateral
loopback.
• If the H2TU-R is in loopback, pressing this button will deactivate the bilateral
loopback.
LOC loopback button
61223HDSL2L2-5B 15
H2TU-C Front Panel Operation HDSL2 for General Distribution Installation and Maintenance Practice
H2TU-C FRONT PANEL OPERATION
LED indicators mounted on the front panel of the unit provide status of the HDSL2 circuit.
Each indicator is described in Table 9 for the H2TU-C and Table 10 for the H2TU-R.
Table 9. H2TU-C Front Panel LED Indications
Front
Panel
118 1113L 2
DSL
DSX/DS1
ALM
ESF/ SF
(YEL) (GRN)
B8ZS/AMI
(YEL) (GRN)
LBK
TX
E
Q
Label Status Description
DSL
DSX/DS1
Green
Red
Green
DSL sync, no errors currently detected, and signal margin ≥ 2 dB
No DSL sync, errors being detected, or signal quality < 2 dB
DSX-1 signal is present and synchronized and no errors are
detected
ALM
ESF/SF
B8ZS/AMI
LBK
Red
Off
Red
Yellow
Off
Green
Yellow
Green
Yellow
Off
Yellow
No DSX-1 signal, or signal is present with errors
No alarm condition detected
Loss of DSX-1 signal to the unit
Loss of DS1 signal to the remote
Unit is provisioned for unframed data
Unit is provisioned for SF data
Unit is provisioned for ESF data
Unit is provisioned for AMI line code
Unit is provisioned for B8ZS line code
Unit is not in loopback
Unit loopback is active toward network or customer
Table 10. H2TU-R Front Panel LED Indications
Front
Panel
1223024L2
LOCAL
DSL
DS1
ALM
ESF/
(YEL)
B8ZS
(YEL)
LLB
(YEL)
L
B
URH T
(GRN)
/
/
RLB
(GRN)
LOC
SF
AMI
(GRN)
Label Status Description
DSL
DS1
ALM
ESF/SF
B8ZS/AMI
LLB/RLB
Green
Red
Green
Red
Off
Red
Yellow
Off
Green
Yellow
Green
Yellow
Off
Green
Yellow
DSL sync, no errors currently detected, and signal margin > 2 dB
No DSL sync, errors being detected, or signal margin ≤ 2 dB
DS1 signal is present and no errors currently being detected
No DS1 signal or framing mismatch
No active alarm present
Loss of DS1 signal to the unit
Loss of DSX signal to the H2TU-C
Unit is provisioned for UNFRAMED data
Unit is provisioned for SF data
Unit is provisioned for ESF data
Unit is provisioned for AMI line code
Unit is provisioned for B8ZS line code
Unit is NOT in loopback
Active remote loopback from the H2TU-C toward the customer
This unit is in loopback (network and/or customer)
16 61223HDSL2L2-5B
HDSL2 for General Distribution Installation and Maintenance Practice Control Port Operation
CONTROL PORT OPERATION
The H2TU-C modules provide a DB-9 connector on the front panel that supplies an RS-232
interface for connection to a controlling terminal. The pinout of the DB-9 is illustrated in
Figure 9.
1
6
7
8
9
Figure 9. RS-232 (DB-9) Pin Assignments
The Total Access 3000 H2TU-C Control Port access is provided via the DB-9 connector on the
Total Access System Controller Unit (SCU), P/N 1181018L1. This section will include Total
Access H2TU-C screens separately where they differ from other HDSL2 screens.
The terminal interface operates at data rates from 1.2 kbps to 19.2 kbps. (Total Access 3000
SCU default rate is 9.6 kbps.)
TXD (Transmit Data)
2
RXD (Receive Data)
3
4
SGN (Signal Ground)
5
The asynchronous data format is fixed at the following parameters:
8 data bits; no parity; 1 stop bit
Disable the line wrap feature of the emulation program if necessary.
NOTE
If using a personal computer (PC) with terminal emulation capability, be sure to disable any power saving programs. Otherwise, communication between the PC and the HDSL2 unit may be disrupted,
resulting in misplaced characters or screen time outs.
Terminal Emulation Modes
An H2TU-C module supports two types of terminal emulation modes:
• Manual Update Mode - This mode is a dumb terminal mode, enabling easy access to print
screen and log files commands. This mode also includes a “3 SPACES TO UPDATE”
message on the top of the terminal screen (press the spacebar three times to update the
screen).
• Real Time Update Mode (default) - This mode is a VT100 terminal mode. This mode enables
all screen highlighting and cursor placement. Print screen and log file commands are not
available in this mode.
NOTE
The Manual Update Mode is not available on the Total Access 3000
H2TU-C.
61223HDSL2L2-5B 17
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