Unit installation

ManualsBrandsADTRAN ManualsBattery ChargerHDSL2

Section 61223026L2-5A

Issue 1, November 2003

CLEI Code: T1L7MERA_ _

61223026L2-5A 1

Trademarks: Any brand names and product names included in this document are

trademarks, registered trademarks, or trade names of their respective holders.

CONTENTS

1. General................................................................ 1

2. Installation .......................................................... 3

3. Connections ........................................................ 4

4. HDSL2 System Testing ...................................... 5

5. Provisioning........................................................ 6

6. Control Port Operation-HDSL2.......................... 8

7. HDSL2 Deployment Guidelines....................... 21

8. Troubleshooting Procedures ............................. 22

9. Maintenance...................................................... 22

10. Product Specifications ...................................... 22

11. Warranty and Customer Service....................... 22

Appendix A. HDSL2 Loopbacks ............................ A-1

TABLES

Table 1. ADTRAN Unit Compatibility ................... 2

Table 2. H2TU-R Enclosure Compatibility............. 2

Table 3. Compliance Codes..................................... 2

Table 4. Front Panel Indications.............................. 4

Table 5. Front Panel Loopback Pushbuttons........... 4

Table 6. Card Edge Pin Assignments ...................... 4

Table 7. Provisioning Options ................................. 7

Table 8. HDSL2 Loss Values................................ 21

Table 9. Troubleshooting Guide............................ 22

Table 10. ADTRAN T200 H2TU-R Specifications 23

Table A-1.HDSL2 Loopback Control Codes ........ A-2

Table A-2.In-Band Addressable Loopback Codes A-3

1. GENERAL

The ADTRAN 2-Wire T200 HDSL2 Transceiver Unit

for the Remote end (H2TU-R) is a network terminating

unit used to deploy an HDSL2 T1 circuit using 2-wire

metallic facilities. Figure 1 illustrates the H2TU-R

(P/N 1223026L2) front panel.

Revision History

This is the initial issue of this practice. Future changes

to this documentation will be explained in this section.

Description

The ADTRAN H2TU-R can be deployed in circuits

using one H2TU-C and one H2TU-R.

Figure 1. ADTRAN T200 H2TU-R

The H2TU-R terminates local loop HDSL2 signals

originating from the Central Office (CO) unit and trans-

forms the HDSL2 signal into traditional DS1 signals to

be delivered to the customer.

The H2TU-R contains an onboard fuse. If the fuse

opens, all front panel indicators turn off. The fuse is not

designed to be replaced in the field.

Compatibility

This version of the H2TU-R works with multiple list

versions of the HDSL2 transceiver unit for the central

office (H2TU-R) as listed in Table 1.

REM

LOC

1223026L2

DSL

DS1

ALM

(GRN)

(YEL)

ESF/

(GRN)

AMI

(YEL)

(GRN)

(YEL)

B8ZS

LLB/ RLB

H T

T200 H2TU-R

2-Wire HDSL (HDSL2) Remote Unit

Installation and Maintenance Practice

Summary of content (28 pages)

PAGE 1
Section 61223026L2-5A Issue 1, November 2003 CLEI Code: T1L7MERA_ _ T200 H2TU-R 2-Wire HDSL (HDSL2) Remote Unit Installation and Maintenance Practice CONTENTS 1. General................................................................ 1 2. Installation .......................................................... 3 3. Connections ........................................................ 4 4. HDSL2 System Testing ...................................... 5 5. Provisioning ..........................................
PAGE 2
Table 1. ADTRAN Unit Compatibility Unit Number Description 122x001L1 or L2 220/E220 H2TU-C 122x003L1 or L2 DDM+ H2TU-C 122x004L1 or L2 3192 H2TU-C 122x006L1 T200 H2TU-C 118111xL1 or L2 Total Access 3000 H2TU-C x = any generic release The H2TU-R is a T200 mechanics card which will fit Type 200 or Type 400 mechanics enclosures, as listed in Table 2. This table also provides reference information on the ADTRAN enclosures. Table 2.
PAGE 3
2. INSTALLATION 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. C A U T I O N ! SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. After unpacking the HDSL2 unit, inspect it for damage. If damage has occurred, file a claim with the carrier, then contact ADTRAN Customer Service.
PAGE 4
Table 4.
PAGE 5
When the circuit pack is installed in any of the H2TU-R enclosures, all connections are made through the enclosure backplanes. NOTE Ensure that the chassis ground is properly connected for either standalone or shelf mounted applications. 4. HDSL2 SYSTEM TESTING The T200 H2TU-R provides diagnostic, loopback, and signal monitoring capabilities. The six front-panel LEDs provide diagnostics for HDSL2 loops, DS1 signals, alarms, provisioning, and loopbacks. See Table 4 on page 4 of this practice for details.
PAGE 6
NOTE Network and customer loopbacks are governed by the loopback time out option (defaulted to 120 minutes). Control Port Terminal Access The H2TU-R provides a front panel mounted DB-9 connector that supplies an RS-232 interface for connection to a controlling terminal.
PAGE 7
Table 7. Provisioning Options Provisioning Option Option Settings Default Settings 1. DSX-1 Line Build Out 0-133 ft. 133-266 ft. 266-399 ft. 399-533 ft. 533-655 ft. 0 to 133 ft. 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 T1 (Disabled), FT1 (Enabled) T1 (Disabled) 8.
PAGE 8
6. CONTROL PORT OPERATION-HDSL2 The screens illustrated in Figure 5 through Figure 26 apply to an HDSL2 circuit deployed with the ADTRAN HDSL2 technology. The circuit includes an H2TU-C and an H2TU-R. Other configurations are possible (for example, other vendor’s equipment) and their displays will vary slightly from those shown in this section.
PAGE 9
The HDSL2 Unit Information Screen (Figure 6), provides detailed product information on each component in the HDSL2 circuit. This screen also displays contact information for ADTRAN Technical Support, Internet site and address. The Provisioning Screen (Figure 7) displays the current provisioning settings for the HDSL2 circuit. To change a particular option setting, select the appropriate number and a new menu will appear with a list of the available settings.
PAGE 10
The Span Status Screen (Figure 8) provides quick access to status information for each HDSL2 receiver in the circuit. The Legend selection provides a description of the messages that are used on the Span Status Screens. The Detailed Status screen (Figure 9), accessed from the Span Status Menu, displays the HDSL2 and T1 status for each receiver point. From this screen, all registers can be zeroed (which requires confirmation), and min/max can be reset.
PAGE 11
The Loopback and Test Commands Screen (Figure 10) provides the user with the ability to evoke or terminate all available HDSL2 loopbacks. It also provides a selftest option to perform a self-diagnostic of the H2TU-C and H2TU-R. Each HDSL2 circuit component can be looped toward the network or customer from this menu. The Performance History Screens (Figure 11, Figure 12, and Figure 13) display the historical HDSL2 and T1 performance data in several different registers.
PAGE 12
At each 24-hour interval, the performance data is transferred into the 24-hour performance data registers. This unit stores up to 31 days of 24-hour interval data. The user is prompted to select a module and interface to view the corresponding performance data. Line (L) and Path (P) related data can be viewed. CIRCUIT ID: 10/29/03 09:29:45 Press ESC to return to previous menu Menu 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
PAGE 13
Abbreviations used in the Performance History Screens are defined in the Data Definitions (Figure 14 and Figure 15). CIRCUIT ID: 10/29/03 09:29:45 Press ESC to return to previous menu Performance Data Definitions H2TUC, H2TUR, and H2R LOOP Related: ES-L Errored Seconds SES-L Severely Errored Seconds UAS-L Unavailable Seconds HDSL2 Framing CRC>=1 or LOSW>=1 CRC>=50 or LOSW>=1 >10 cont.
PAGE 14
The Scratch Pad, Circuit ID and Time/Date Screen (Figure 16) allows three main functions: be entered as MMDDYY (for example, enter January 02, 2003, as “010203”). • Setting/updating system date and time • Logging the circuit ID • Logging pertinent work notes The Circuit ID field may contain up to 25 characters. The time should be entered using military time (for example, enter 3:15 p.m. as “151500”).
PAGE 15
This unit includes two terminal emulation modes. The desired terminal mode can be selected from the Terminal Modes Screen (Figure 17). Additionally, pressing CTRL+T while on any screen toggles between the two terminal modes. The Manual Update Mode allows the user to manually update the provisioning option screens. This mode supports efficient print screen and log file utilities for storage of key provisioning parameters, alarm or performance history and current system status.
PAGE 16
The Alarm History screens are divided into two separate screens: T1 Alarm History (Figure 18) and HDSL2 Span History (Figure 19).
PAGE 17
The Event History screen (Figure 20) provides a log history of HDSL2 circuit events. Events are recorded in the Events History screen.
PAGE 18
The System PM/Screen Report option from the Main Menu (Figure 21) offers these four types of reports on performance monitoring: 1. 2. 3. 4. Full System/History Report Current Status Report System Configuration Report Alarm/Event History Selecting a report type will display all the reports for that category on the screen at once, which is more efficient than stepping through menus individually to view each report.
PAGE 19
The Troubleshooting screen (Figure 23) compiles information received from all facilities and equipment in the circuit and presents them in both Real-Time and 7-Day historical format. The Troubleshooting Guidance screen (Figure 24) option (accessed from the Troubleshooting screen) analyzes this information and makes repair recommendations.
PAGE 20
The General Information screen (Figure 25) shows the Loop Deployment Guidelines for this type of circuit. Should trouble occur on the circuit, many test details are available here. The Virtual Terminal Session Control screen (Figure 26) allows the user to log into the H2TU-C from the H2TUR. Terminal control of the H2TU-C is retained until 5 minutes of idle time passes, or it may be released immediately by pressing CTRL+X.
PAGE 21
7. HDSL2 DEPLOYMENT GUIDELINES The ADTRAN HDSL2 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 nonloaded 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.
PAGE 22
8. TROUBLESHOOTING PROCEDURES Table 9 is a troubleshooting guide for the T200 H2TU-R. 9. MAINTENANCE The ADTRAN H2TU-R requires no routine maintenance. In case of equipment malfunction, use the front panel bantam jack connector to help locate the source of the problem. ADTRAN does not recommend that repairs be performed in the field. Repair services may be obtained by returning the defective unit to the ADTRAN. Refer to Warranty and Customer Service section of this Practice. 10.
PAGE 23
Table 10. ADTRAN T200 H2TU-R Specifications Loop Interface Modulation Type Mode Number of Pairs Bit Rate Baud Rate Service Range Loop Loss 16-TC PAM Full Duplex, Partially Overlapped, Echo Canceling One 1.552 Mbps 517.333 k baud Defined by Carrier Service Area Guidelines Refer to the HDSL2 Deployment Guidelines section for details Bridged Taps Single Taps < 2 kft, Total Taps < 2.5 kft Performance Compliant with T1.418-2000 (HDSL2 Standard) H2TU-R Tx Power (Data) Level 16.8 + 0.
PAGE 24
This page is intentionally blank.
PAGE 25
Appendix A HDSL2 Loopbacks HDSL2 MAINTENANCE MODES This appendix describes operation of the HDSL2 system with regard to detection of inband and ESF facility data link loopback codes. Upon deactivation of a loopback, the HDSL2 system will synchronize automatically. Loopback Process Description In general, the loopback process for the HDSL2 system elements is modeled on the corresponding DS1 system process.
PAGE 26
Table A-1. HDSL2 Loopback Control Codes Code2,3 Name Abbreviated (N) (N) (C) (C) 3in7 (1110000) 4in7 (1111000) 6in7 (1111110) 5in7 (1111100) Loopback data from network toward network in the HTU-R. Loopback data from network toward network in the HTU-C. Loopback data from customer toward customer in HTU-C. Loopback data from customer toward customer in HTU-R.
PAGE 27
Table A-2. In-Band Addressable Loopback Codes Function Code (Hex / Binary) Response ARM (in-band) - also known as 2-in-5 pattern 11000 (binary) The H2TU-R will loop back toward the network. No AIS or errors will be sent as a result of this loopback. The H2TU-C will arm. Disarm (in-band) - also known as 3-in-5 pattern 11100 (binary) The H2TU-C is removed from the armed state. If any of the units are in loopback when the 11100 pattern is received, they will loop down.
PAGE 28
A-4 Issue 1, October 2003 61223026L2-5A