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ADC HiGain H2TU-C-388 List 7F Manual

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U
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SER
ANUAL
HiGain H2TU-C-388 List 7F Line Unit
Product Catalog: H2TU-C-388-7F
CLEI: VACJLK6E

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Summary of Contents for ADC HiGain H2TU-C-388 List 7F

  • Page 1 ANUAL HiGain H2TU-C-388 List 7F Line Unit Product Catalog: H2TU-C-388-7F CLEI: VACJLK6E...
  • Page 2 Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits, and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages.
  • Page 3 Unpack each container and inspect the contents for signs of damage. If the equipment has been damaged in transit, immediately report the extent of damage to the transportation company and to ADC DSL Systems, Inc. Order replacement equipment, if necessary.
  • Page 4 Inspecting Shipment LTPH-UM-1214-02 July 21, 2003 H2TU-C-388 List 7F...

  • Page 5: Table Of Contents

    LTPH-UM-1214-02 Table of Contents ABLE OF ONTENTS Overview ____________________________________________________________________________ 1 Features ..............................1 Applications ............................2 Front Panel __________________________________________________________________________ 3 Installation___________________________________________________________________________ 7 Verification ............................8 Verification without an H2TU-R Remote Unit ..............8 Verification with an H2TU-R Remote Unit ................8 Provisioning__________________________________________________________________________ 9 Displaying System Parameter Settings ....................9 Accessing the Provisioning Screens ....................9 Connecting to a Maintenance Terminal................9 Logon Screen ........................10...
  • Page 6 Table of Contents LTPH-UM-1214-02 System Alarms..........................48 Alarm Option for the Digital Loop Carrier Feed .............. 49 Retiring System Alarms ....................49 Remote LOS and AIS Response ..................50 OCT55 Test Pattern with AMI Line Code ..................50 Loopback Operation ........................51 Generic Loopback Commands ......................
  • Page 7 5. Inventory Screen............................13 6. Config Menu..............................13 7. Config Menu - Standard Options (defaults shown)..................14 8. Config Menu - ADC Options (defaults shown) ...................15 9. Config Menu - Set to Factory Defaults ......................24 10. Config Menu - Master Clear ........................24 11. Sectionalized Analysis of the DS1 and HDSL2 Interface................26 12.
  • Page 8 List of Figures LTPH-UM-1214-02 37. H2TU-R BERT Generator Screen ....................... 61 38. H2TU-C Card-Edge Connector ........................64 39. RS-232 Craft Port Pinouts ........................... 65 40. Block Diagram............................66 viii July 21, 2003 H2TU-C-388 List 7F...
  • Page 9 3. Navigational Keys for the Maintenance Terminal Screens................10 4. Logon Screen Menus...........................11 5. H2TU-C Standard Config Menu Options ....................16 6. H2TU-C ADC Config Menu Options ......................17 7. DS1/DSX-1 24-Hour PM Threshold......................20 8. Response to H2TU-R DS1 Frame Conversion Options................21 9. Extended SuperFrame Format........................21 10.
  • Page 10 List of Tables LTPH-UM-1214-02 July 21, 2003 H2TU-C-388 List 7F...

  • Page 11: Overview

    LTPH-UM-1214-02 Overview VERVIEW The H2TU-C-388 List 7F (H2TU-C) line unit is the Central Office (CO) side of a T1 transmission system. The HiGain HDSL2 product family is fully compliant with the HDSL2 standard ANSI T1.418. The H2TU-C, when used with an H2TU-R remote unit, transmits a 1.544 Mbps payload on one unconditioned copper pair over the full Carrier Service Area (CSA) range.

  • Page 12: Applications

    Overview LTPH-UM-1214-02 – Bit-Error-Rate Test (BERT) Generator • Configuration options – Selectable DSX-1 pre-equalizer – Bipolar Violation Transparency (BPVT) options – Bit Error Rate (BER) alarm – Power Back Off - Customer (PBOC) and Power Back Off - Network (PBON) options for configuring power output levels –...

  • Page 13: Front Panel

    LTPH-UM-1214-02 Front Panel RONT ANEL Figure 1 shows the H2TU-C front panel. Table 1 on page 4 describes the front-panel components. For pinout diagrams of the H2TU-C card-edge connector and craft port, refer to “Appendix A - Specifications” on page List number Front-panel display Loopback pushbutton...
  • Page 14 Front Panel LTPH-UM-1214-02 Table 1. Front-Panel Description Front-Panel Feature Function Front-panel display Displays four-character status, provisioning, and alarm system messages. The front-panel display illuminates when power is initially applied. To conserve power the display only remains on for 5 minutes. Using the MODE or LBK pushbuttons reactivates the display and restarts the 5-minute timer.
  • Page 15 LTPH-UM-1214-02 Front Panel Table 2. Front-Panel Display Messages (Continued) Message Full Name Description PWR FEED GND Power Feed Ground The HDSL2 loop is grounded. PWR FEED OPEN Power Feed Open Indicates a line power open condition. PWR FEED SHRT Power Feed Short Indicates a short between the Tip and Ring of the HDSL2 pair.
  • Page 16 Front Panel LTPH-UM-1214-02 Table 2. Front-Panel Display Messages (Continued) Message Full Name Description LOOPBACK MESSAGES CLOC Customer Local Loopback Signal from customer is looped back to the customer at the H2TU-R. COLB Central Office Loopback Dual loopback at the H2TU-C. CREM Customer Remote Loopback Signal from customer is looped back to the customer at H2TU-C.

  • Page 17: Installation

    Upon receipt of the equipment, inspect the contents for signs of damage. If the equipment has been damaged in transit, immediately report the extent of damage to the transportation company and to ADC. When installing an H2TU-C in a chassis, be sure to wear an antistatic wrist strap. Avoid touching components on the circuit board.

  • Page 18: Verification

    Installation LTPH-UM-1214-02 ERIFICATION Once the H2TU-C is installed, verify that it is operating properly. To do this, monitor the following: • Status LED • Status messages reported by the front-panel display (Table 2 on page 4 lists the status messages). For information regarding turn-up instructions, see the Help menu and select Turn-up Aid.

  • Page 19: Provisioning

    LTPH-UM-1214-02 Provisioning ROVISIONING ISPLAYING YSTEM ARAMETER ETTINGS To scroll through the current settings of all system parameters, press the MODE pushbutton for 3 or more seconds. The H2TU-C displays the following parameters: • Software version number • List number • Type of frame pattern received from the DSX-1 •...

  • Page 20: Logon Screen

    Provisioning LTPH-UM-1214-02 Logon Screen The maintenance terminal screens allow you to monitor, provision, and troubleshoot an HDSL2 system. To select a menu from the logon screen shown in Figure 3, do one of the following: • Press the underlined letter of the menu. ←...
  • Page 21 Figure 25 on page Config Provides standard configuration options, ADC options, date and time setting, and a reset option (factory settings). Also provides a master clear option that clears all performance, alarm, and event log entries. Selecting the Config menu after a remote...

  • Page 22: Provisioning Tasks

    Provisioning LTPH-UM-1214-02 ROVISIONING ASKS After the H2TU-C is successfully installed, perform these basic provisioning tasks: • Set date and time (see “Setting Date and Time” on this page). • Set circuit ID numbers (see “Setting Circuit ID Numbers” on page 13).

  • Page 23: Setting Circuit Id Numbers

    Figure 6. Config Menu The Config menu (see Figure 6) allows you to make the following changes: • Standard options (see Figure 7 on page 14). • ADC options (see Figure 8 on page 15). H2TU-C-388 List 7F July 21, 2003...
  • Page 24 Standard and ADC configuration options. Standard options are those supported by HiGain HDSL2 units when connected to units from other vendors. ADC options are an extended set of options that are only available when using HiGain units exclusively. For a description of...
  • Page 25 LTPH-UM-1214-02 Provisioning Figure 8. Config Menu - ADC Options (defaults shown) H2TU-C-388 List 7F July 21, 2003...
  • Page 26 Provisioning LTPH-UM-1214-02 Table 5. H2TU-C Standard Config Menu Options Front-Panel Standard Config Display Selection Description Menu Options Code Loopback Timeout LBTO NONE Disables automatic time-out cancellation of all loopbacks. 20 min Sets automatic cancellation of all loopbacks to 20 minutes after initiation. 60 min Sets automatic cancellation of all loopbacks to 60 minutes after initiation.
  • Page 27 Configures the power output levels of the H2TU-R customer unit toward the Options” on page network to comply with the Enhanced template as defined in Section 6.1.4.2 of ANSI T1/E1.4. Table 6. H2TU-C ADC Config Menu Options Front-Panel ADC Config Display...
  • Page 28 Provisioning LTPH-UM-1214-02 Table 6. H2TU-C ADC Config Menu Options (Continued) Front-Panel ADC Config Display Selection Description Menu Options Code Special Loopback SPLB GNLB Configures the HDSL2 system to respond to the generic inband loopback codes. Mode A1LB and Configures the HDSL2 system to respond to the inband loopback codes of the A2LB Westell addressable repeater.
  • Page 29 LTPH-UM-1214-02 Provisioning HDSL2 Block Error Rate Threshold (HBER) Option. The HBER option permits the monitoring of loop integrity and reporting of alarms when excessive errors are detected. The PM primitive used for this purpose is the CRC checksum performed on the HDSL2 frame for both directions of transmission. It is, therefore, called a block error rate rather than the bit error rate associated with the DS1 interface.
  • Page 30 Provisioning LTPH-UM-1214-02 Table 7. DS1/DSX-1 24-Hour PM Threshold Parameter Threshold Count CV-L (BPV) 133,400 CV-P (CRC) 132,960 ES-L, ES-P, PRM-NE PRM-FE SES-L, SES-P UAS-P, UAS-L H2TU-R DS1 Frame Conversion (CONV) Option. Frame format conversion is only applicable to the remote H2TU-R, but selectable by the H2TU-C or H2TU-R. This option enables the network to be ESF which is used to embed SPRM or NPRM into the data link toward the network.
  • Page 31 LTPH-UM-1214-02 Provisioning Table 8. Response to H2TU-R DS1 Frame Conversion Options ACON Option FCON Option Case Number NET Transmit CPE Transmit NET > CPE NET > CPE NET < CPE NET < CPE → → ESF ← SF ESF ← SF →...
  • Page 32 Provisioning LTPH-UM-1214-02 Table 10. SuperFrame Format Frame Bits SF Number Terminal Framing Bit SuperFrame Signaling Bit ESF-RAI to SF-RAI Overwrite (ROVR) Option. If the ESF-RAI to SF-RAI Overwrite (ROVR) option is enabled, it allows a network ESF-RAI or ESF-RAI-CI pattern to be converted into a CPE SF-RAI or SF-RAI-CI pattern, and overwrites bit 2 of every DS0 channel with a zero.
  • Page 33 LTPH-UM-1214-02 Provisioning An alternative interpretation of the AIS-CI signature is that the AIS signal, modified by the AIS-CI signature, is equivalent to an ESF signal in which the FPS bits, the CRC-6 bits, and the payload are set to all ones, and the DL is overwritten by the pattern 01111100 11111111.

  • Page 34: Resetting To Factory Defaults

    Provisioning LTPH-UM-1214-02 Resetting to Factory Defaults Figure 9. Config Menu - Set to Factory Defaults Resetting the H2TU-C to its original factory settings may cause interruption of service. To reset the H2TU-C to its original factory defaults (refer to Figure Press to select the Config menu.
  • Page 35 LTPH-UM-1214-02 Provisioning Select Master Clear to clear the History, Alarm and Event Log screens after the system has been installed and is functioning properly. This removes miscellaneous data acquired during the start-up session and ensures that you have meaningful data thereafter. To clear the Event Log, press to select the Event Log screen, then press to clear the screen.

  • Page 36: Monitoring System Activity And Performance

    Monitoring System Activity and Performance LTPH-UM-1214-02 ONITORING YSTEM CTIVITY AND ERFORMANCE The HDSL2 system provides the following maintenance screens for monitoring system activity and assessing performance. • The Monitor screen provides a graphical representation of circuit activity and allow initiation of loopbacks. •...

  • Page 37: Payload Retrieval Of Margin And Pulse Attenuation Parameters

    LTPH-UM-1214-02 Monitoring System Activity and Performance • Easy access to stored HDSL2 PM data • AIS-CI insertion toward the network upon detection of incoming LOS or AIS at the network interface • RAI-CI insertion toward the network upon receiving RAI from the CPE, if the signal from the network is not impaired •...

  • Page 38: Using The Monitor Screen To View System Activity

    Monitoring System Activity and Performance LTPH-UM-1214-02 Table 11. Bit Error Indication of Margin and Pulse Attenuation Parameters Margin (dB) Pulse Attenuation (dB) Bit Errors Sent 5 or less 31 or higher 5 or less 26 - 30 5 or less 0 - 25 6 - 10 31 or higher...
  • Page 39 LTPH-UM-1214-02 Monitoring System Activity and Performance Armed mode Alarm type System status Frame ground status Figure 13. Monitor Screen - ARMed Press to view the system diagram. Figure 12 shows an armed circuit with an active loopback and alarms. Terms used on the system diagram are defined in the onscreen Help menu glossary.

  • Page 40: Using The Performance Screens To View Performance Data

    Monitoring System Activity and Performance LTPH-UM-1214-02 Table 12. Monitor Screen Descriptions (Continued) Field Description DS1 UAS Count Unavailable Seconds—The number of seconds during which the DS1 input signal was absent over a 24-hour period. Frame Type Type of DS1 framing detected at the input stream (SF, ESF, or UNFR). Frameground status Central Office (CO) unit reports absence of a ground.

  • Page 41: Performance History At The Ds1 Interface

    LTPH-UM-1214-02 Monitoring System Activity and Performance Press to log on to the H2TU-R remote unit. Press to select the Performance screen. Press the SPACEBAR to select H2TU-R DS1, then press ENTER SPACEBAR ENTER Press the to select BI History. Press .
  • Page 42 Monitoring System Activity and Performance LTPH-UM-1214-02 Figure 15. H2TU-C DS1 48-Hour Performance History Figure 16. H2TU-R DS1 25-Hour Performance History July 21, 2003 H2TU-C-388 List 7F...
  • Page 43 LTPH-UM-1214-02 Monitoring System Activity and Performance Figure 17. H2TU-R DS1 Current Statistics Figure 18. H2TU-C DS1 Current Statistics Table 13. Error Acronyms Used on the DS1 Performance History Screens Error Error Description Description Acronym Acronym CV-L Code Violation - Line UAS-P Unavailable Seconds - Path Total BPV count.

  • Page 44: Blockage Indicator Statistics At The H2Tu-R Ds1 And Hdsl2 Interface

    Monitoring System Activity and Performance LTPH-UM-1214-02 Table 13. Error Acronyms Used on the DS1 Performance History Screens (Continued) Error Error Description Description Acronym Acronym UAS-L Unavailable Seconds - Line B8ZSS B8ZS Monitored Seconds Seconds with LOS ≥ 1. Seconds with B8ZS detection when AMI option is active.
  • Page 45 LTPH-UM-1214-02 Monitoring System Activity and Performance Figure 19. H2TU-R DS1 Blockage Indicator History Screen Figure 20. H2TU-R HDSL2 Blockage Indicator History Screen H2TU-C-388 List 7F July 21, 2003...

  • Page 46: Performance History At The Hdsl2 Interface

    Monitoring System Activity and Performance LTPH-UM-1214-02 Performance History at the HDSL2 Interface The HDSL2 interface has 31-day, 48-hour, 25-hour, and current statistic screens for the H2TU-C. Figure 21 Figure 22 are examples of 31-day and 48-hour performance history screens. Figure 23 Figure 24 on page 37 are examples of 25-hour and current statistics performance history screens.
  • Page 47 LTPH-UM-1214-02 Monitoring System Activity and Performance Figure 23. H2TU-C HDSL2 25-Hour Performance History Figure 24. H2TU-C HDSL2 Current Statistics Table 14. Error Acronyms Used on the HDSL2 Performance History Screens Error Acronym Description Code Violation Total count of HDSL2 CRC errors. Errored Seconds Seconds with HDSL2 CRC ≥...

  • Page 48: Using The Performance Screens To View Alarm Data

    Monitoring System Activity and Performance LTPH-UM-1214-02 SING THE ERFORMANCE CREENS TO LARM To access the alarm history screens: Press to select the Performance screen. Press the SPACEBAR to select an interface (H2TU-C DS1, H2TU-R DS1, H2TU-C HDSL2, or H2TU-R ENTER HDSL2), then press SPACEBAR ENTER...
  • Page 49 LTPH-UM-1214-02 Monitoring System Activity and Performance Table 15. DS1 Alarm Descriptions Front-Panel Screen Alarm Description Alarm H2TU-C DS1 ALARMS (see Figure 25 on page LLOS LLOS Line (Unit) Loss of Signal—Loss of the H2TU-C DSX-1 input signal. LAIS LAIS Line Alarm Indication Signal—Indicates an AIS (all ones) pattern is being transmitted from the local DS1 output port.

  • Page 50: Alarm History At The Hdsl2 Interface

    Monitoring System Activity and Performance LTPH-UM-1214-02 Alarm History at the HDSL2 Interface The HDSL2 Alarm History screens report alarms at the H2TU-C and the H2TU-R. Figure 27 shows the H2TU-C HDSL2 alarm history. Table 16 describes the alarms that are reported at the H2TU-C or H2TU-R. Figure 27.

  • Page 51: Using The System Event Log To Track Events

    LTPH-UM-1214-02 Monitoring System Activity and Performance SING THE YSTEM VENT OG TO RACK VENTS The System Event Log screen, when viewed from the H2TU-C (Figure 28) or H2TU-R (Figure 29), displays 100 of the most recent events (most recent event displayed first) and provides the following information: •...

  • Page 52: Event Log Messages

    Monitoring System Activity and Performance LTPH-UM-1214-02 Event Log Messages Table 17 lists all the possible messages that can be displayed by the System Event Log screen. Table 17. Event Log Entry Messages Any DS1 Alarm History reset Any DS1 PM register reset Any HDSL2 Alarm History reset Any HDSL2 PM register reset Any Loop Down (any segment)

  • Page 53: Origin Tags

    LTPH-UM-1214-02 Monitoring System Activity and Performance Origin Tags The origin tags identify the source of all Write entries and how an event occurred. The exact meaning is dependent on the type of event and the unit reporting the event. A Write entry changes a system parameter or an option setting, but it does not affect circuit status changes, such as alarms.

  • Page 54: Using The Sectionalized Event Log To Isolate Trouble

    Monitoring System Activity and Performance LTPH-UM-1214-02 SING THE ECTIONALIZED VENT OG TO SOLATE ROUBLE The Sectionalized Event Log screen, shown in Figure 30, displays the date and time of the 100 most recent sectionalized events (most recent event displayed first) for all four legs of the H2TU-R DS1 interface. The screen provides a description of each event with the most recent event displayed first.
  • Page 55 LTPH-UM-1214-02 Monitoring System Activity and Performance Sectionalized events isolate trouble to a particular circuit leg (see Figure 31). For example, an ES listed under the NET-TX column indicates that an errored second condition exists on the NET-TX circuit leg beginning with the time stamp and continuing until an OK or other new event is recorded.

  • Page 56: Using The Report Menu

    Monitoring System Activity and Performance LTPH-UM-1214-02 SING THE EPORT The Report menu (Figure 32) provides screens containing status and performance monitoring data for line and remote units which can be downloaded to a file for analysis or future reference. Table 20 on page 47 describes the report types provided by the Report menu.
  • Page 57 LTPH-UM-1214-02 Monitoring System Activity and Performance Table 20. Report Types Type Contains the following information: Full Report • Circuit and unit identifications • Product information • System configuration • Current performance statistics • Alarm history • Performance history • System event log Short Report •...

  • Page 58: Testing

    Testing LTPH-UM-1214-02 ESTING This section provides information about front-panel system alarms, LOS and AIS response, OCT55 test procedure, and loopback testing. YSTEM LARMS Table 21 summarizes all possible system alarms in order of priority as they appear on the line unit front panel. When multiple alarms occur, the front-panel display only reports the highest priority alarm.

  • Page 59: Alarm Option For The Digital Loop Carrier Feed

    LTPH-UM-1214-02 Testing Table 21. Front-Panel System Alarms Summary (Continued) Front-Panel Alarm Description To Inhibit Message xxx-HBER HDSL2 Block Error Rate The HDSL2 BER has exceeded the set threshold Select NONE for the HBER limits of 10 or 10 . xxx denotes either TUC or system option.

  • Page 60: Remote Los And Ais Response

    AIS event? [DIS] pattern [AIS] AIS to CPE [ENA] [LOS] ALMP Pass on LOS to NET [AIS] ADC Option [AIS] Standard Option NAIS Send AIS to NET Default configurations [CI] are in bold. Send AIS-CI to NET H0429-A Figure 33. H2TU-R LOS and AIS Response Priorities...

  • Page 61: Loopback Operation

    LTPH-UM-1214-02 Testing OOPBACK PERATION HiGain HDSL2 has a family of loopback options for analyzing circuit functionality. The loopback signal is transmitted and returned to the sending device for comparison. This allows you to verify the integrity of the HDSL2 channels to the H2TU-C, the H2TU-C DSX-1 interface and the DS1 channels to the customer. Loopback options include: •...

  • Page 62: Generic Loopback Commands

    Testing LTPH-UM-1214-02 ENERIC OOPBACK OMMANDS The HDSL2 Generic Loopback (GNLB) commands allows the use of inband codes to loop up either NLOC (4-in-7) or NREM (3-in-7) towards the network. Additionally, these inband codes loop up CREM (6-in-7) or CLOC (5-in-7) towards the customer. Either loopup condition can be terminated (looped down) with the 3-in-5, SMJK loopdown code.

  • Page 63: Special Loopback Commands

    LTPH-UM-1214-02 Testing PECIAL OOPBACK OMMANDS In addition to the GNLB loopback command mode, an HDSL2 system can be configured for special loopback command modes. The H2TU-C can be configured from the maintenance terminal Monitor screen using the Config menu and Special Loopback Mode option. Once a loopback mode is activated, other loopback commands can be sent by a test set connected to the craft port of the H2TU-C or H2TU-R.

  • Page 64: Manual Loopback Session

    Testing LTPH-UM-1214-02 ANUAL OOPBACK ESSION A manual loopback session allows for any HDSL2 loopback selection as listed in Table 22 on page 52 with the exception of SmartJack loopbacks, which can only be issued by inband commands. Setting the Loopback Time-Out Option Before initiating a loopback session, verify that the Loopback Time-Out parameter is set to the desired setting.

  • Page 65: Loopback Test Procedures

    LTPH-UM-1214-02 Testing Loopbacks can be terminated manually and exited from the MAN LPBK mode by simultaneously pressing the MODE and LBK pushbuttons for 3 or more seconds. If no loopback is active, the MAN LPBK mode automatically terminates after 30 seconds. All loopbacks, except dual loopbacks, can be initiated by inband commands in the DS1 payload.

  • Page 66: A1Lb, A2Lb, And A5Lb Test Procedures

    Testing LTPH-UM-1214-02 Loopbacks Toward Network TLOS* HRU-412 HRU-412 H2TU-C HDSL2 SPAN LOGIC All ones HRU-412 H2TU-R SMJK* HRU-412 HRU-412 H2TU-C HDSL2 SPAN 2-in-5 All ones 11000 HRU-412 H2TU-R FF02 NREM NREM* C742 ‡ HRU-412 HRU-412 HRU-412 HRU-412 H2TU-C HDSL2 SPAN 3 in 7 1110000 HRU-412...
  • Page 67 LTPH-UM-1214-02 Testing To perform the A2LB loopback test procedures: Send the inband Arming and NI LPBK code 11000 to the H2TU-C for at least 5 seconds. Monitor the output of the H2TU-C for the return of the pattern. Return of the pattern indicates one of the following: •...
  • Page 68 Testing LTPH-UM-1214-02 The Armed mode has an automatic time-out of 120 minutes, but this timer is reset to 120 for any of the following events: • Loopback terminates (manually or time-out) • Query • Alternate query • Far-End activate • Another ARM command This timer is inhibited while any of the valid command codes are being sent.

  • Page 69: A3Lb And A4Lb Test Procedures

    LTPH-UM-1214-02 Testing A3LB and A4LB Test Procedures The H2TU-C can be looped back by sending the Addressable Office Repeater (AOR) LPBK activation code 1111-1111-0001-1110 (FF1E) for at least 5 seconds. This causes the H2TU-C to enter the NLOC state. The Loopback Time-Out setting determines the duration of this loopback unless it is overridden by the reception of a second identical 16-bit loopup command before the timer expires.

  • Page 70: Testing With H2Tu-C Bert Generator

    Testing LTPH-UM-1214-02 H2TU-C BERT G ESTING WITH ENERATOR The H2TU-C BERT Generator screen allows transmission of a selected test signal from the H2TU-C towards either the network (NET) or customer (CPE). Bit error rates are calculated and displayed on the Monitor screen (Figure 12 on page 28).

  • Page 71: Testing With H2Tu-R Bert Generator

    LTPH-UM-1214-02 Testing H2TU-R BERT G ESTING WITH ENERATOR The H2TU-R BERT Generator screen allows transmission of a test signal from the H2TU-R towards either the network (NET) or customer (CPE). Bit error rates are calculated and display on the Monitor screen. Press to logon remotely, then press to select the Config menu.

  • Page 72: Appendix A - Specifications

    Appendix A - Specifications LTPH-UM-1214-02 A - S PPENDIX PECIFICATIONS Power HDSL2 Span Voltage 0 or -180 ±5 Vdc CO Supply -48 Vdc nominal (-42.5 Vdc to -56.5 Vdc) “Power Consumption” “Maximum Power Dissipation” “Maximum Current Drain” on page Electrical Protection Secondary surge and power cross protection on HDSL2 ports.

  • Page 73: Power Consumption

    LTPH-UM-1214-02 Appendix A - Specifications OWER ONSUMPTION The three most important power parameters of an H2TU-C are its maximum power consumption, maximum power dissipation, and maximum current drain. Table 26 describes line-powered circuits on 9 kft, 26 AWG loops without a regenerator. Table 26.

  • Page 74: Loop Attenuation

    Appendix A - Specifications LTPH-UM-1214-02 TTENUATION Each loop has no more than 35 dB of insertion loss at 196 kHz, with driving and terminating impedances of 135Ω, as shown in Table 27 below. This is equivalent to no more than 28 dB loop attenuation. Table 27.

  • Page 75: Fuse Alarm

    LTPH-UM-1214-02 Appendix A - Specifications Fuse Alarm Pin 117 on the card-edge connector is a Fuse Alarm that is driven to -48 Vdc whenever its onboard fuse opens. RAFT Figure 39 shows the pinout for the craft port connector and its connection to a DB-9 or DB-25 connector on a maintenance terminal.

  • Page 76: Appendix B - Functional Operation

    UNCTIONAL PERATION ADC HDSL2 technology provides full-duplex services at standard DS1 rates over copper wires between an H2TU-C and an H2TU-R, which comprise one HDSL2 system. ADC systems use ADC Overlapped Pulse Amplitude Modulation (OPAM) transceiver systems to establish a full-duplex, 1.552 kbps data channel between an H2TU-C and a remotely located H2TU-R.

  • Page 77: Appendixc - Compatibility

    ANSI T1.418-2000 HDSL2 standards. HiGain HDSL2 complies with GR-63-CORE, TR-TSY-000499, and GR-1089-CORE. The H2TU-C is compatible with the following DDM+ high-density shelves and associated equipment: • ADC HiGain HCS-402, 2-slot shelf with #150-1193-01 adapter • Larus FT2 1188 (23-inch, 28-slot, connectorized shelf) •...

  • Page 78: Appendix D - Product Support

    UPPORT ADC Customer Service Group provides expert pre-sales and post-sales support and training for all its products. Technical support is available 24 hours a day, 7 days a week by contacting the ADC Technical Assistance Center. Sales Assistance • Quotation Proposals 800.366.3891 extension 73000...

  • Page 79: Appendix E - Abbreviations

    LTPH-UM-1214-02 Appendix E - Abbreviations E - A PPENDIX BBREVIATIONS ESD: Electrostatic Discharge ESF: Extended SuperFrame ACO: Alarm Cutoff ES-L: Errored Seconds - Line ACQ: Acquisition EXZ: The occurrence of 8 consecutive zeroes for B8ZS or AIS: Alarm Indication Signal 16 for AMI.
  • Page 80 Appendix E - Abbreviations LTPH-UM-1214-02 SES-P: Severely Errored Seconds - Path SuperFrame MAL: Margin Alarm SMJK: SmartJack MARG: Margin SNET: Southern New England Telephone MSEC: Monitored Seconds SPLB: Special Loopback SPRM: Supplemental PRM Near End NID: Network Interface Device TLOS: Transmit Loss of Signal NLOC: Network Local Loopback...

  • Page 81: Certification And Warranty

    ODIFICATIONS Any changes or modifications made to this device that are not expressly approved by ADC DSL Systems, Inc. voids the user's warranty. All wiring external to the products should follow the provisions of the current edition of the National Electrical Code.
  • Page 82 World Headquarters ADC Telecommunications, Inc. PO Box 1101 Minneapolis, MN 55440-1101 Technical Assistance Tel: 800.366.3891 x73223 Tel: 952.917.3223 Fax: 952.917.3244 : LTPH-UM-1214-02 OCUMENT ´,bt¶9•¨ 1266849...

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