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61221002L2-5B 1
ADTRAN
®
AHDSL2
Asynchronous H2TU-C Line Card for
Alcatel Litespan
®
Channel Bank Assemblies Using Narrowband Pairs
Installation and Maintenance Practice
Section 61221002L2-5B
Issue 2, August 2003
CLEI Code: SLL5R3DG_ _
CONTENTS
1. General .........................................................................1
2. Applications .................................................................3
3. Installation....................................................................3
4. Deployment Guidelines ...............................................8
5. Maintenance .................................................................9
6. Troubleshooting Procedures ......................................10
7. Product Specifications ...............................................10
8. Warranty and Customer Service ................................10
Appendix A. HDSL2 Loopbacks .................................. A-1
Appendix B. TL1 H2TU-C Tutorial ..............................B-1
Appendix C. Metallic Test Access Unit (MTAU)
Testing Capabilities ..................................C-1
FIGURES
Figure 1. ADTRAN H2TU-C for Litespan ....................1
Figure 2. H2TU-C Span Powering Diagram ..................3
Figure 3. Deployment from a Litespan
Channel Bank ..................................................3
Figure 4. Deployment Guidelines ..................................8
Figure C-1. SPLIT Mode ................................................C-1
Figure C-2. MON Mode .................................................C-2
TABLES
Table 1. LED Indicators ................................................2
Table 2. Compliance Codes ..........................................4
Table 3. Administration Commands .............................5
Table 4. Cross-Connect Commands..............................5
Table 5. Maintenance Commands.................................5
Table 6. HDSL Provisioning Commands .....................6
Table 7. T1 Provisioning Commands ...........................6
Table 8. Testing Commands .........................................7
Table 9. Worksheet PW-1 Factors ................................8
Table 10. Power Parameters............................................8
Table 11. HDSL2 Loss Values........................................9
Table 12. Loop Insertion Loss Data................................9
Table 13. Troubleshooting Guide .................................10
Table 14. ADTRAN H2TU-C Specifications ...............11
Table A-1. In-Band Addressable Loopback
Codes .................................................. A-2, A-3
Figure 1. ADTRAN H2TU-C for Litespan
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
1. GENERAL
The ADTRAN asynchronous Litespan HDSL2
Transceiver Unit for the Central Office (H2TU-C)
P/N 1221002L2, is a DS1 interface unit that provides
full T1 service over 2-wire interface facilities. The
Litespan H2TU-C combines ADTRAN HDSL2
technology and Litespan technology to provide an
HDSL2 interface to a Litespan system. ADTRAN’s
Litespan H2TU-C is certified by Alcatel
®
to safely
operate in Litespan 2000, 2012 and Starspan systems.
The unit is licensed under the Asynchronous
High-bit-rate Digital Subscriber Line 2-wire T1
Interface Unit H2TU-C channel unit type. Figure 1 is
an illustration of the ADTRAN H2TU-C.
Revision History
This is the second release of this document.
Additional footnotes have been added to Tables 6, 7,
and A-1.
Features
• Lightning and power cross-protection, static
discharge immunity, and local power bus fusing
for line card safety and protection
• 1.552 kbps HDSL2 transmission over a single
pair
• Front panel status LEDs
• Performance monitoring and alarm reporting
• Low power consumption
• Span powering for the H2TU-R
• Corrosion-preventive sealing current over a
single twisted copper pair
• Troubleshooting functionality
H TUC
DSL
STAT
RLOS
HLOS
HCRC
ARM
LBK
B8ZS