ADTRAN T200 HTU-R Instruction Manual

HDSL
T200 HTU-R, Span Powered, 60 mA
Installation and Maintenance Practice
Document Number: 61247026L1-5A
CLEI: T1I3AAVA_ _
April 2008
®

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
ii 61247026L1-5A
Front Matter
Trademarks
Any brand names and product names included in this document are trademarks, registered
trademarks, or trade names of their respective holders.
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]
United States
©2008 ADTRAN, Inc.
All Rights Reserved.
®

61247026L1-5A 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
AApril 2008 Initial release

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
iv 61247026L1-5A
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]

61247026L1-5A v
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
HDSL Deployment Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Shipping Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DS1 NIU 60 mA Current Option Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Instructions for Installing the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Control Port Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Menu Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Screen Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Menu Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
HDSL Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Current System Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Current System Status - HRE Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Performance History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Performance History - HRE Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Loopbacks Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Self Test Options Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Provisioning Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Troubleshooting Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Alarm History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Set Time/Date/Circuit ID Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Terminal Modes Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
HDSL System Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
T200 HTU-R, SP/60 mA Bantam Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
T200 HTU-R, SP/60 mA Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
vi 61247026L1-5A
Front Panel Pushbuttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Appendix A
HDSL Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
HDSL Maintenance Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
HTU-C Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
HTU-R Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
HRE Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Loopback Process Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
HDSL Loopback Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Appendix B
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Warranty and Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
ADTRAN Sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
ADTRAN Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
ADTRAN Repair/CAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Repair and Return Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Figures
Figure 1. T200 HTU-R, SP/60 mA Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. HDSL Deployment Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. RS-232 (DB9) Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4. Introductory Menu Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 5. HDSL Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 6. Current System Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 7. Current System Status - HRE Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 8. Performance History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 9. Performance History - HRE Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 10. Loopback Options Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 11. Self-Test Options Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 12. Provisioning Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 13. Troubleshooting Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 14. Alarm History Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 15. Set Time/Date/Circuit ID Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 16. Terminal Modes Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 17. T200 HTU-R, SP/60 mA MON Bantam Jacks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 18. HDSL Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure A-1. HDSL Loopback Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Contents
61247026L1-5A vii
Figure A-2. HDSL Element State Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Tables
Table 1. HDSL Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table 2. T200 HTU-R, SP/60 mA Compliance Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 3. HDSL Loss Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 4. Loop Insertion Loss Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 5. Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 6. T200 HTU-R, SP/60 mA Provisioning Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 7. Card Edge Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 8. Screen Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 9. HDSL Main Menu Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 10. HDSL, DS1, and DSX-1 Key Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 11. Pair Reversal Key Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 12. HDSL Loop Signal Quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 13. ADTRAN Noise Margin Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 14. T200 HTU-R, SP/60 mA Front Panel Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 15. Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 16. T200 HTU-R, SP/60 mA Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table A-1. HDSL Loopback Control Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
viii 61247026L1-5A
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61247026L1-5A 1
T200 HTU-R,
Span Powered, 60 mA
INTRODUCTION
This practice is an installation and maintenance guide for the ADTRAN®T200 HTU-R, Span
Powered, 60 mA (T200 HTU-R, SP/60 mA). Figure 1 illustrates the T200 HTU-R, SP/60 mA
(P/N 1247026L1) front panel.
Figure 1. T200 HTU-R, SP/60 mA Front Panel

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
261247026L1-5A
Description
The T200 HTU-R, SP/60 mA is a network terminating unit used to deploy an HDSL T1 circuit
using 4-wire metallic facilities. The T200 HTU-R, SP/60 mA is a T200 mechanics card which will
fit T200 mechanics enclosures.
This version of the T200 HTU-R, SP/60 mA works with multiple list versions of the HDSL
transceiver unit for the central office (HTU-C), and HDSL Range Extenders (HREs) as listed
below.
The T200 HTU-R, SP/60 mA can be deployed in circuits using one HTU-C and one HTU-R.
The T200 HTU-R, SP/60 mA can also be deployed with one HTU-C and one HRE in circuits
requiring reach beyond standard CSA requirements. The T200 HTU-R, SP/60 mA will power
an external T1 NIU using a 60 mA constant current source. The T200 HTU-R, SP/60 mA
terminates local loop HDSL signals originating from the Central Office (CO) unit and trans-
forms the HDSL signal into traditional DS1 signals to be delivered to the customer.
The HDSL local loop operates as two independent subsystems each operating over a single
twisted pair. The T200 HTU-R, SP/60 mA communicates over these two twisted pairs to the
HTU-C located at the CO. Each subsystem carries half of the total bandwidth along with a
small amount of overhead used for maintenance and performance monitoring related
functions.
The effective range of an ADTRAN HDSL-based T1 circuit can be extended using the ADTRAN
HDSL Range Extender (HRE). The HRE can double the deployment range of standard HDSL
and extend the digital subscriber loop serving range up to 36 kft on 24-gauge twisted pair wire
using two HREs.
The T200 HTU-R, SP/60 mA can be used with any HRE and any HTU-C to provide a fully span-
powered extended range HDSL circuit. Span power is provided from the HTU-C. Span
powering meets all requirements of Class A2 voltages as specified by Bellcore GR-1089-CORE.
Table 1. HDSL Compatibility
Part Number Description
1245006L6 5th Gen T200 HTU-C
124600xLx 6th Gen HTU-C
1246041L1 6th Gen T200 HRE
1246045L1 6th Gen 239 HRE
1247002Lx 7th Gen Litespan HTU-C
1247001Lx 7th Gen 220 HTU-C
1247003Lx 7th Gen DDM+ HTU-C
1247004Lx 7th Gen 3192 HTU-C
1247045Lx 7th Gen 239 HRE
1247041Lx 7th Gen T200 HRE
x = any number

Introduction
61247026L1-5A 3
Compliance
The T200 HTU-R, SP/60 mA is NRTL Listed to the applicable UL safety standards for use in
continuous environmental conditions ranging from –40°C to +50°C. Care should be exercised
when handling equipment when temperatures at these extremes exist, as surfaces could be
very cold or hot.
The T200 HTU-R, SP/60 mA meets or exceeds all the applicable requirements of NEBS,
Telcordia GR-63-CORE and GR-1089-CORE and is evaluated to ensure proper operational
performance is maintained if environmental conditions ranging from –40°C to +71°C are
encountered.
The T200 HTU-R, SP/60 mA is intended for deployment in Central Office type facilities, EEEs,
EECs, and locations where the NEC applies (for example, customer premises). Install the T200
HTU-R, SP/60 mA in the appropriate chassis, which is intended to be installed only in
Restricted Access Locations by qualified personnel.
The compliance codes for the T200 HTU-R, SP/60 mA are listed below in Table 2.
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.
WARNING
Voltages up to –200 VDC with respect to ground may be present on
the HDSL telecommunications conductors. Voltages up to 200
VDC may be present between individual HDSL telecommunications
conductors.
Table 2. T200 HTU-R, SP/60 mA Compliance Codes
Configuration Code Input Output
Power Code (PC) C C
Telecommunication Code (TC) X X
Installation Code (IC) A –

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
461247026L1-5A
CAUTION
Per GR-1089-CORE the HDSL System is designed and intended for
installation as part of a Common Bonding Network (CBN). The
HDSL System is not designed nor intended for installation as part
of an Isolated Bonding Network (IBN).
CAUTION
Per GR-1089-CORE Section 9, the T200 HTU-R, SP/60 mA does
not have an internal DC connection between –48VR and frame
ground. As such, it may be installed in a DC-I (isolated) or DC-C
(common) installation. For installations where other cards or the
host system have internal connections between –48 VR and frame
ground, the system would be intended for deployment only in a
DC-C installation.
NOTE
The HDSL port is classified as Type 3 and 5, as defined in Appendix
B of GR-1089-CORE Issue 4, and meets the lightning and power
fault criteria with any primary protector that meets any of the
voltage limits of GR-974-CORE or GR-1361-CORE (i.e., carbon
blocks, gas tubes, solid states, etc.).
NOTE
The DS1 port is classified as Type 3, 4, and 5, as defined in
Appendix B of GR-1089-CORE Issue 4, and meets the lightning
and power fault criteria of GR-1089-CORE Issue 4 with primary
protectors that meet any of the voltage limits of GR-974-CORE or
GR-1361-CORE (i.e., carbon blocks, gas tubes, solid states, etc.). If
the DS1 is deployed as Type 4, primary protectors are not required.
NOTE
Current limiting protectors are not required.

HDSL Deployment Guidelines
61247026L1-5A 5
HDSL DEPLOYMENT GUIDELINES
The ADTRAN HDSL system is designed to provide DS1 based services over loops designed to
comply with carrier service area (CSA) guidelines. CSA deployment guidelines are given below.
• All loops are non-loaded only.
• For loops with 26-AWG cable, the maximum loop length including bridged tap lengths is 9 kft.
• For loops with 24-AWG cable, the maximum loop length including bridged tap lengths is 12 kft.
• Any single bridged tap is limited to 2 kft.
• Total bridged tap length is limited to 2.5 kft.
• The total length of multi-gauge cable containing 26-AWG cable must not exceed the
following:
–12–{(3*L
26)/(9 – LBTAP)} (in kft)
Where:
-L
26= Total length of 26-AWG cable excluding bridged taps (in kft)
-L
BTAP= Total length of all bridged taps (in kft)
This deployment criteria is summarized in the chart shown in Figure 2.
Loop loss per kft for other wire is summarized in Table 3.
Figure 2. HDSL Deployment Guidelines
0
12
11
10
9
8
7
6
5
4
3
2
1
0
1234
WORKING LENGTH OF 26 GAUGE CABLE (KFT)
WORKING LENGTH OF 24 GAUGE (OR COARSER) CABLE (KFT)
56789
2.5 2.0 1.5 1.0 0.5 0.0
TOTAL
BRIDGED
TAP
LENGTH
(KFT)
VALID HDSL CABLE LENGTHS
INVALID HDSL CABLE LENGTHS

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
661247026L1-5A
Recommended maximum local loop loss information for PIC cable at 70°F, 135 Ωresistive
termination is provided in Table 4.
An approximation for the maximum amount of wideband noise on an HDSL local loop as
measured by a 50 kb filter is ≤31 dBrn.
An approximation for the maximum level of impulse noise as measured using a 50 kb filter on
an HDSL loop is ≤50 dBrn.
NOTE
These approximations are to be used as guidelines only and may
vary slightly on different loops. Adhering to the guidelines should
produce performance in excess of 10-7 BER.
Table 3. HDSL Loss Values
(200 kHz cable loss in dB/kft at 135 Ω)
Cable Gauge Cable Type Temperature
68° 90° 120°
26 PIC 3.902 4.051 4.253
26 Pulp 4.030 4.179 4.381
24 PIC 2.863 2.957 3.083
24 Pulp 3.159 3.257 3.391
22 PIC 2.198 2.255 2.333
22 Pulp 2.483 2.45 2.629
19 PIC 1.551 1.587 1.634
19 Pulp 1.817 1.856 1.909
Table 4. Loop Insertion Loss Data
Frequency (Hz) Maximum Loss (dB)
3000 12.00
10000 15.00
50000 25.50
100000 30.00
150000 32.75
196000 35.00
200000 32.25
250000 37.50
325000 42.00

Installation
61247026L1-5A 7
INSTALLATION
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.
After unpacking the T200 HTU-R, SP/60 mA, inspect it for damage. If damage has occurred,
file a claim with the carrier then contact ADTRAN Customer Service. Refer to “Appendix B,
Warranty” for further information. If possible, keep the original shipping container for
returning the T200 HTU-R, SP/60 mA for repair or for verification of shipping damage.
Shipping Contents
The contents include the following items:
• T200 HTU-R, Span Powered, 60 mA
•HDSL T200 HTU-R, Local Powered, 60 mA Job Aid (P/N 61247026L1-22)
•HDSL T200 HTU-R, Local Powered, 60 mA Compliance Notice (P/N 61247026L1-17)
DS1 NIU 60 mA Current Option Jumper
The option jumper is used to configure the DS1 NIU 60 mA Current Source. The option
jumper must be configured before installing the T200 HTU-R, SP/60 mA. The available
settings are listed below:
• Off disables the constant current source for the DS1 NIU.
• On enables the 60 mA constant current source for the DS1 NIU.
Instructions for Installing the Module
To install the T200 HTU-R, SP/60 mA, perform the following steps:
1. Set the option jumper according to specific circuit design, for more information refer to
“DS1 NIU 60 mA Current Option Jumper” above.
2. Hold the T200 HTU-R, SP/60 mA by the front panel while supporting its bottom edge to
engage the chassis edge.
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
861247026L1-5A
3. Align the T200 HTU-R, SP/60 mA edges to fit in the lower and upper guide grooves for the
module slot.
4. Slide the T200 HTU-R, SP/60 mA into the module slot. Simultaneous thumb pressure at the
top (above the DSL 1 LED) and at the bottom (below the electrostatic caution symbol) of the
T200 HTU-R, SP/60 mA will ensure that it is firmly positioned against the backplane of the
chassis.
When the T200 HTU-R, SP/60 mA first powers up it runs the power up self-tests. Once the
power up self-tests are complete, the status LEDs reflect the true state of the hardware.
Front Panel LEDs
The T200 HTU-R, SP/60 mA provides front panel LEDs to display status information. The T200
HTU-R, SP/60 mA LEDs and status descriptions are shown in Table 5.
Table 5. Front Panel LEDs
Label Status Description
DSL 1/DSL 2 {
z
z
z
5
Off
Green
Yellow
Red
Flashing
No synchronization
Good signal quality (> 4)
Marginal signal quality (1 to 3)
Poor signal quality (0)
Error detected at HTU-C or HTU-R. The color, when flashing,
indicates loop signal quality, as shown above.
DS1 {
z
2
Off
Green
Green Flashing
DS1 signal not detected from customer or format does not
matching HDSL circuit provisioning
DS1 signal is present and synchronized with the HTU-C interface
Bipolar violation (BPV), frame bit error (SF mode) or CRC error
(ESF mode) detected
ALM {
z
z
Off
Yellow
Red
No alarm conditions exist
Remote alarm condition detected (HTU-C)
Local alarm condition (HTU-R) detected
ESF/
SF
{
z
z
Off
Green
Yellow
Unframed mode
T200 HTU-R, SP/60 mA is receiving SF data
T200 HTU-R, SP/60 mA is receiving ESF data
B8ZS/AMI z
z
Green
Yellow
DS1 is provisioned for AMI line coding
DS1 is provisioned for B8ZS line coding
LLB/RLB {
z
z
2
Off
Green
Yellow
Yellow Flashing
Not in loopback or armed state
Active remote bidirectional loopback from the HTU-C toward the
customer and the network
Active local bidirectional loopback from the T200 HTU-R, SP/60
mA toward the customer and the network
Unit armed but not in a active loopback

Installation
61247026L1-5A 9
Provisioning
Provisioning is performed via software. For more information, refer to “Control Port Operation”
on page 11.
The provisioning settings can be viewed and manipulated through management access via the
front panel RS-232 port. Table 6 lists the available provisioning options and their factory
default settings.
Table 6. T200 HTU-R, SP/60 mA Provisioning Defaults
Option Settings Default
DSX 1 LBO 0–133 feet; 133–266 feet; 266–399 feet;
399–533 feet; 533–655 feet; EXT (1)
0-133 feet
DSX-1/DS1 Line Code B8ZS; AMI B8ZS
DSX-1/DS1 Framing AUTO; UNF; Forced Conversion ESF; SF AUTO
NIU Loopback Enabled; Disabled Enabled
New England 1:6 LPBK Enabled; Disabled Disabled
Loopback Timeout NONE; 60 MIN; 120 MIN 120 MIN
Customer Loss Response AIS; CDI; LPBK AIS
Latching Loopback Mode T1; FT1 T1
Performance Reporting Message
(PRM)
NPRM; SPRM; NONE; AUTO AUTO
DS1 TX LVL 0 dB; –15 dB 0 dB
DS0 Blocking (XX= blocked) (2) None blocked;
Any of 01-24 blocked or unblocked
None blocked
1. EXT option only available when using 220 HTU-C (1247001Lx). EXT is the default setting when using the 220
HTU-C.
2. DS0 Blocking is an option that is only valid for the HTU-C and is not configurable on the HTU-R user interface.

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
10 61247026L1-5A
CONNECTIONS
All connections of the T200 HTU-R, SP/60 mA are made through card edge connectors. Table 7
provides the card edge pin assignments for the T200 HTU-R, SP/60 mA circuit pack. The circuit
pack operates in either of the previously mentioned stand alone chassis, the ADTRAN HR4 HDSL
shelf (P/N 1242008L1), or the ADTRAN HR12 HDSL shelf (P/N 1242007L1).
When the circuit pack is installed in any of the HTU-R enclosures, all connections are made
through the enclosure backplanes.
Table 7. Card Edge Pin Assignments
Pin Designation Description
1CH GND Chassis ground
5DS1-T1 DS1 receive out tip (to customer interface)
7H1-T HDSL Loop 1 tip (facility)
11 CH GND Chassis ground
12 GND Ground for protection switching
13 H1-R HDSL Loop 1 ring (facility)
15 DS1-R1 DS1 receive out ring (to customer interface)
17 –48 VR Local power return voltage
20 VCC +5 VDC for protection switching
27 CH GND Chassis ground
35 –48 V Local power –48 VDC
40 PROT-1 Control line for protection switching
41 H2-T HDSL Loop 2 tip (facility)
47 H2-R HDSL Loop 2 ring (facility)
49 DS1-R DS1 transmit in ring (from customer interface)
55 DS1-T DS1 transmit in tip (from customer interface)

Control Port Operation
61247026L1-5A 11
CONTROL PORT OPERATION
The T200 HTU-R, SP/60 mA provides a front panel mounted DB9 connector that supplies an
RS-232 interface for connection to a controlling terminal. The pinout of the DB9 is illustrated
in Figure 3.
Figure 3. RS-232 (DB9) Pin Assignments
The terminal interface operates at data rates from 1.2 kbps to 19.2 kbps. The asynchronous
data format is fixed at 8 data bits, no parity, 1 stop bit, and no flow control. The supported
terminal type is VT100 or compatible.
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 HDSL unit may
be disrupted, resulting in misplaced characters or screen time-
outs.
Pin 3 - Receive Data (RXD)
Pin 2 - Transmit Data (TXD)
Pin 5 - Signal Ground (SGN)

HDSL T200 HTU-R, Span Powered, 60 mA Installation and Maintenance Practice
12 61247026L1-5A
USER INTERFACE
This section provides detailed information on the following:
•Menu Structure
•Menu Navigation
•Screen Abbreviations
Menu Structure
The menu structure for the T200 HTU-R, SP/60 mA is a layered menu tree. Each layer of the
menu tree is displayed as a menu or a screen.
Menus
A menu is a display that provides numbered selections that are used to navigate to related
menus, modify provisioning information, or display information screens. A menu can contain
the following objects:
• Menu Option: A menu option is indicated by a number which, when selected, navigates the
display to another menu layer or is used to change the option setting.
• Read-only Field: A read-only field displays information that cannot be changed. The
information displayed in a read-only field can be static or can be automatically updated by
the unit.
• Read-write Field: A read-write field displays information that, when selected, can be
modified.
• Hot Key: A hot key is a key or combination of keys that are assigned to a function. Hot keys
are indicated by the required key(s) and a brief description (that is, “?” - Help).
Screen
A screen is a display that usually indicates the end of a menu tree path. A screen can contain
the following objects:
• Read-only Field: A read-only field displays information that cannot be changed. The
information displayed in a read-only field can be static or can be automatically updated by
the unit.
• Read-write Field: A read-write field displays information that, when selected, can be
modified.
• Hot Key: A hot key is a key or combination of keys that are assigned to a function. Hot keys
are indicated by the required key(s) and a brief description (that is, “?” - Help).
Menu Navigation
Basic menu navigation is accomplished by selecting the desired option number and then
pressing ENTER. To return to the previous menu, press the escape (ESC) key. To access the
System Help screen, press the question mark (?) key, and press ENTER.