ADTRAN T200 HDSL4 Installation And Maintenance Practice
ADTRAN T200 HDSL4 Installation And Maintenance Practice

ADTRAN T200 HDSL4 Installation And Maintenance Practice

Transceiver unit for the remote end

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CONTENTS
1.
General .................................................................................. 1
2.
Installation ............................................................................. 2
3.
Connections ........................................................................... 4
4.
HDSL4 System Testing ........................................................ 4
5.
Front Panel Operation ........................................................... 6
6.
Control Port Operation ......................................................... 6
7.
HDSL4 Deployment Guidelines ......................................... 17
8.
Troubleshooting Procedures ............................................... 22
9.
Maintenance ........................................................................ 22
10. Product Specifications ........................................................ 22
11. Warranty and Customer Service ......................................... 22
Appendix A. HDSL4 Loopbacks .............................................. A-1
FIGURES
ADTRAN T200 H4TU-R ......................................... 1
H4TU-R Edge Connector Wiring ............................. 4
H4TU-R MON Diagram .......................................... 4
HDSL4 Loopbacks ................................................... 5
RS-232 (DB-9) Connector Pinout ............................ 6
HDSL4 Main Menu .................................................. 8
Unit Information Screen ........................................... 9
Provisioning Screen .................................................. 9
Span Status Screen ................................................. 10
Detailed Status Screen ............................................ 10
Loopbacks and Test Screen .................................... 11
Screen ..................................................................... 11
Performance Data Definitions Screen .................... 12
Terminal Modes Menu ........................................... 14
T1 Alarm History Screen ........................................ 15
HDSL4 Span History Screen .................................. 15
Event History Screen .............................................. 16
Virtual Terminal Control Screen ............................ 17
HDSL4 Circuit Segments ....................................... 18
Repeaters ................................................................ 20
Repeaters (Example) .............................................. 21
TABLES
Table 1.
Compliance Codes .................................................... 2
Table 2.
Front Panel Indicators .............................................. 3
Table 3.
Screen Abbreviations ................................................ 7
Table 4.
Attenuation Limits from DSL Assistant ................. 18
Table 5.
Range Limits: 26 GA Single Segment Only .......... 18
Table 6.
Range Limits: 24 GA Single Segment Only .......... 18
Table 7.
Single Pair Cable DC Resistance Value ................. 19
Table 8.
HDSL4 Insertion Loss Values ................................ 22
Table 9.
Single Span and First Segment of Repeatered
Loop ........................................................................ 22
Table 10.
Second and Third Segment of Repeatered Loop .... 22
61222426L1-5B
T200 HDSL4 Transceiver Unit
for the Remote End
Installation and Maintenance Practice
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
CLEI Code: T1L5JZTCA _ _
Table 11.
Troubleshooting Guide ........................................... 23
Table 12.
ADTRAN T200 H4TU-R Specifications ............... 24
Table A-1. HDSL4 Loopback Control Codes ........................ A-2
Table A-2. Loopback and Control Codes ....................... A-3, A-4
1222426L1
TX
M
O
N
RX
R
S
2
3
2
Figure 1. ADTRAN T200 H4TU-R
1. GENERAL
The ADTRAN 4-wire T200 HDSL4 transceiver unit
for the remote end (H4TU-R), P/N 1222426L1, is a
network terminating unit used to deploy an HDSL4 T1
circuit using 4-wire metallic facilities, see Figure 1.
The T200 H4TU-R is a T200 mechanics card which
will fit T200 or T400 mechanic enclosures. The
H4TU-R can be housed in the ADTRAN standalone
metal enclosures (P/N 1242034Lx or 1245034L1).
Refer to the appropriate ADTRAN practice for more
information. The T200 H4TU-R card can also plug
into the ADTRAN HR12 HDSL4 remote shelf (P/N
1242007Lx), or the ADTRAN HR4 HDSL4 remote
shelf (P/N 1242008L1).
Section 61222426L1-5B
Issue 2, October 2003
DSL 1
DSL 2
DS1
ALM
ESF/
SF
(YEL)
(GRN)
B8ZS/
AMI
(YEL)
(GRN)
LLB /
RLB
(YEL)
(GRN)
LOC
LBK
REM
TX
RX
1

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Summary of Contents for ADTRAN T200 HDSL4

  • Page 1: Table Of Contents

    HDSL4 Circuit Segments ........18 Figure 24. Resistance Budget Span Powering Two 1. GENERAL Repeaters ..............20 The ADTRAN 4-wire T200 HDSL4 transceiver unit Figure 25. Resistance Budget Span PoweringTwo for the remote end (H4TU-R), P/N 1222426L1, is a Repeaters (Example) ..........21...
  • Page 2: Installation

    OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. After unpacking the unit, inspect it for damage. If damage is discovered, file a claim with the carrier, then contact ADTRAN. For more information, refer to the Warranty and Customer Service section . 61222426L1-5B...
  • Page 3 Front Panel Indicators There are seven front panel status LEDs. Each indicator is described in Table 2. Table 2. Front Panel Indicators 1222426L1 ≥ DSL 1 < DSL 2 ≥ < ESF/ (YEL) (GRN) B8ZS/ (YEL) (GRN) LLB / (YEL) (GRN) i t c 61222426L1-5B...
  • Page 4: Connections

    INTERFACE When the circuit pack is installed in any of the H4TU-R enclosures, all connections are made through the enclosure backplanes. See the following ADTRAN documents for more information: Document No. Description 61242007LX-5 ..HR12 I&M Figure 3. H4TU-R MON Diagram 61242008L1-5 ..
  • Page 5: Figure 4. Hdsl4 Loopbacks

    Refer to Appendix A for more details on loopbacks H4TU-C H4TU-R and loopback arming sequences. H4R1 Network-Side Loopback Figure 4 illustrates all of the possible loopback DSX-1 locations of the ADTRAN HDSL4 equipment. H4TU-C H4R1 H4R2 H4TU-R Customer Loopbacks H4R1 Customer-Side Loopback...
  • Page 6: Front Panel Operation

    5. FRONT PANEL OPERATION The terminal interface operates at data rates from 1.2, 2.4, 4.8, 9.6, and 19.2 kbps. The asynchronous data The front panel contains two pushbuttons. These are format is fixed at 8 data bits, no parity, and 1 stop bit. labeled The LOC pushbutton controls a bidirectional loopback NOTE...
  • Page 7 Operation For abbreviations used in the screen diagrams, see Table 3. Table 3. Screen Abbreviations Abbreviation Definition ES ........ Errored Seconds DSX/DS1 ...... (SF) Second in which BPVs or frame bit error occurs (ESF) Second in which a BPV or CRC error occurs HDSL4 ......
  • Page 8: Figure 6. Hdsl4 Main Menu

    The Main Menu provides access to detailed The screens illustrated in Figures 6 through 22 apply performance and configuration information. Selecting to an HDSL4 circuit deployed with ADTRAN's the corresponding number or letter can access the HDSL4 technology. The circuit includes an H4TU-C, following screens: up to two H4Rs and an H4TU-R.
  • Page 9: Figure 7. Unit Information Screen

    HDSL4 circuit. This screen HDSL4 circuit. To change a particular option setting, also displays contact information for ADTRAN select the appropriate number, and a new menu will Technical Support, Internet site, and address.
  • Page 10: Figure 9. Span Status Screen

    The Span Status Screen (Figure 9) provides quick NOTE access to status information for each HDSL4 receiver The insertion loss reading shown on the Detailed in the circuit. Status Screen is an approximation that is valid The Detailed Status selection from the System Status for some loops.
  • Page 11: Figure 11. Loopbacks And Test Screen

    The Loopback and Test Commands Screen (Figure The Performance History screens (Figure 12 and 11) is used to invoke or terminate all available HDSL4 Figure 13) display the historical HDSL4 and T1 loopbacks. Each HDSL4 circuit component can be performance data in several different registers. looped toward the network or customer from this At each 15-minute interval, the performance screen.
  • Page 12: Figure 13. 24-Hour Performance History Line Data Screen

    information is transferred to the 15-minute To view the performance data, select the desired performance data register. This unit stores module and interface. Line (L) and Path (P) performance data in 15-minute increments for the last Performance data can be viewed. 24-hour period.
  • Page 13: Figure 15. Performance Data Definitions Screen (Continued)

    Figure 16 illustrates the Scratch Pad, Circuit ID, and The time should be entered using military time (for Time/Date Screen. The Scratch Pad data can be any example, enter 3:15 p.m. as “151500”). alphanumeric string up to 50 characters in length. The The date should be entered as MMDDYY (for Circuit ID can be any alphanumeric string up to 25 example, enter January 02, 2003, as “010203”).
  • Page 14: Figure 17. Terminal Modes Menu

    H4TU-C. The remote terminal session is This unit includes two terminal emulation modes. These modes are described on the Terminal Modes terminated by typing on the terminal at Menu, (Figure 17). the H4TU-R. Alternatively, if there is no keyboard input at the H4TU-R’s terminal for a period of 5 minutes, the remote session will time NOTE out, and the screens will once again be available...
  • Page 15: Figure 18. T1 Alarm History Screen

    The T1 Alarm History screen (Figure 18) provides the user with a detailed alarm history and events log for the T1 circuit. This screen includes a time, date, first/ last occurrence, and count for each type of HDSL4 or T1 alarm. The HDSL4 Span History Screen (Figure 19) lists alarms that have occurred on the span between the H4TU-C and H4TU-R.
  • Page 16: Figure 20. Event History Screen

    The Event History screen (Figure 20) provides a log The System PM/Screen Report option from the Main history of HDSL4 circuit events. Menu offers four types of reports on performance monitoring. Selecting a report type will then display all the reports for that category on the screen at once, which is more efficient than stepping through the menus individually.
  • Page 17: Figure 22. Virtual Terminal Control Screen

    The Virtual Terminal Control screen (Figure 22) is used to access the unit on the far end of the circuit. CIRCUIT ID: 01/25/02 11:52:00 Virtual Terminal Session: Inactive Virtual Host: Virtual Terminal Control Log into H4TU-C Selection: Figure 22. Virtual Terminal Control Screen 61222426L1-5B...
  • Page 18: Hdsl4 Deployment Guidelines

    (yellow zone) may Figure 23. HDSL4 Circuit Segments result in compromised reliability of that loop. The The ADTRAN HDSL4 system provides DS1-based guidelines are provided in numbers 1 through 9, which services over loops designed to comply with the follow: guidelines given below.
  • Page 19 ADTRAN provides an excellent computer-aided loop NOTE design tool called DSL Assistant that provides these A circuit that otherwise meets attenuation and loop loss design criteria automatically. The insertion loss requirements for cable reach will color-coded loop attenuation results provide green...
  • Page 20: Figure 24. Resistance Budget Span Powering Two Repeaters

    Once the resistance of each segment is confirmed, d) Find the instance where the two points from refer to Figure 24 to decide if the H4TU-C is capable Steps b and c meet on the graph. of span powering two H4Rs and one H4TU-R. e) The point found in step d must be below the Follow these steps to utilize the graph shown in upper limit line defined by the third segment...
  • Page 21: Figure 25. Resistance Budget Span Poweringtwo Repeaters (Example)

    d) Find the instance on the graph where the points An example problem is illustrated in Figure 25. For this example, begin with three known measurements: from Steps b and c meet. 600 ohm first segment resistance, 700 ohm second e) If this point is below the bold line defined in segment resistance, and 900 ohm third segment Step a, the circuit is capable of span powering...
  • Page 22 For each of the four (or three for second and third 8. Insertion Loss limits. See Table 8. segment) measured insertion loss values, compute the The asymmetric nature of the HDSL4 TC PAM difference between the recommended maximum loss line code necessitates that insertion loss be and the measured loss (rec minus measured).
  • Page 23: Troubleshooting Procedures

    Table 12 lists the H4TU-R specifications. Contact Customer and Product Service (CAPS) prior 11. WARRANTY AND CUSTOMER SERVICE to returning equipment to ADTRAN. ADTRAN will replace or repair this product within ADTRAN, Inc. the warranty period if it does not meet its published CAPS Department specifications or fails while in service.
  • Page 24: Figure 1. Adtran T200 H4Tu-R

    Table 12. ADTRAN T200 H4TU-R Specifications i t a l a i i l e s r i t s r , t n < , . t l a t < . t f a i l 0 ±...
  • Page 25: Appendix Ahdsl4 Loopbacks

    Appendix A HDSL4 Loopbacks HDSL4 MAINTENANCE MODES The unit can detect the loopback activation or This appendix describes operation of the HDSL4 deactivation code sequence only if an error rate of or better is present. system with regard to detection of in-band and ESF facility data link loopback codes.
  • Page 26 Table A-1. HDSL4 Loopback Control Codes 2, 3 Type Source Code Name ....Abbreviated (N) ....3in7 (1110000) Loopback data from network toward network in the HTU-R. (N) ....4in7 (1111000) Loopback data from network toward network in the HTU-C. (N) ....
  • Page 27 Table A-2. Loopback and Control Codes − e t t s t i l l i e t t l l i e t t s t i l l i i l i l l i e t t s t i l l i −...
  • Page 28 Table A-2. Loopback and Control Codes (continued) s t i i r r e t t l l i s t i l l i s t i l l i t t e r i f i t a l l i .

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