1. Manuals
  2. Brands
  3. ADC Manuals
  4. Network Hardware
  5. H4TU-C-231-L1
  6. User manual

ADC H4TU-C-231-L1 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
HDSL4
HDSL4
U
M
SER
ANUAL
H4TU-C-231 List 1 Line Unit
Product Catalog: H4TU-C-231-L1
CLEI: VACJMTNE

Advertisement

Table of Contents
loading

Related Manuals for ADC H4TU-C-231-L1

Summary of Contents for ADC H4TU-C-231-L1

  • Page 1 HDSL4 HDSL4 ANUAL H4TU-C-231 List 1 Line Unit Product Catalog: H4TU-C-231-L1 CLEI: VACJMTNE...
  • 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-1138-02, Issue 2 September 12, 2003 H4TU-C-231 List 1...

  • Page 5: Table Of Contents

    LTPH-UM-1138-02, Issue 2 Table of Contents ABLE OF ONTENTS Overview ____________________________________________________________________________ 1 Features ..............................1 Applications ............................2 Front Panel __________________________________________________________________________ 3 Installation___________________________________________________________________________ 8 Verification ............................9 Verification without a Downstream Device ................9 Verification with a Downstream Device ................9 Provisioning_________________________________________________________________________ 10 Using the MODE and SEL Buttons ....................10 Setting Options through MODE and SEL .................10 Resetting to Factory Default Values..................11 Displaying System Parameter Settings................11...
  • Page 6 Table of Contents LTPH-UM-1138-02, Issue 2 Alarm Option for Digital Loop Carrier (DLC) Feed ............45 Retiring System Alarms ....................45 Remote LOS and AIS Response ..................46 OCT55 Test Pattern with AMI Line Code ..................46 Loopback Operation ........................47 Generic Loopback Commands..................
  • Page 7 5. Inventory Menu.............................16 6. Config Menu ..............................17 7. Config Menu - Standard Options (Defaults Shown)..................18 8. Config Menu - ADC Options (Defaults Shown) ..................18 9. Configuration Menu - Reset to Factory Defaults..................23 10. Configuration Menu - Master Clear......................24 11. System Spans ..............................25 12.
  • Page 8 List of Figures LTPH-UM-1138-02, Issue 2 viii September 12, 2003 H4TU-C-231 List 1...
  • Page 9 3. Navigational Keys for the HDSL4 Maintenance Terminal Screens .............12 4. Logon Screen Menus ...........................13 5. H4TU-C-231 List 1 Standard Config Screen Options ..................19 6. H4TU-C-231 List 1 ADC Config Screen Options..................20 7. DS1/DSX-1 24-Hour PM Threshold......................22 8. Monitor Screen Descriptions ........................27 9.
  • Page 10 List of Tables LTPH-UM-1138-02, Issue 2 September 12, 2003 H4TU-C-231 List 1...

  • Page 11: Overview

    LTPH-UM-1138-02, Issue 2 Overview VERVIEW The H4TU-C-231 List 1 is the Central Office (CO) side of a repeaterless T1 transmission system. The four-wire HDSL4 product family (hereafter referred to as “HDSL4”) is based on the HDSL4 standard ANSI T1.418 Issue 2. The H4TU-C, when used with an H4TU-R remote unit, transmits a 1.544 Mbps payload up to a maximum distance of 12 kft.

  • Page 12: Applications

    Overview LTPH-UM-1138-02, Issue 2 — Bipolar Violation Transparency (BPVT) — Bit Error Rate (BER) alarm — Power Back Off Network (PBON) and Power Back Off Customer (PBOC) options for configuring HDSL4 transmit power levels — Loss of Signal/Alarm Indication Signal (LOS/AIS) payload alarm —...

  • Page 13: Front Panel

    LTPH-UM-1138-02, Issue 2 Front Panel RONT ANEL Figure 1 shows the H4TU-C-231 List 1 front panel. Table 1 on page 4 describes the front-panel components. For a list of front-panel display messages, refer to Table 2 on page 5. For pinout diagrams of the H4TU-C card-edge connector and craft port, refer to Figure 32 on page 62 Figure 33 on page...
  • Page 14 Front Panel LTPH-UM-1138-02, Issue 2 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 SEL buttons reactivates the display and restarts the 5-minute timer.

  • Page 15: Front-Panel Display Messages

    LTPH-UM-1138-02, Issue 2 Front Panel Table 2 lists the front-panel display messages. The four-character display reports the code of a pertinent alarm, loopback, or diagnostic message and, in some cases, is followed by a second four-character message that modifies the first message with a value or current configuration setting. Table 2.
  • Page 16 Front Panel LTPH-UM-1138-02, Issue 2 Table 2. Front-Panel Display Messages (Continued) Message Full Name Description LOOPBACK MESSAGES CDU1 Customer Doubler 1 Loopback DS1 signal from customer is looped back to the customer at H4D1 (111100). CDU2 Customer Doubler 2 Loopback DS1 signal from customer is looped back to the customer at H4D2 (111110).
  • Page 17 LTPH-UM-1138-02, Issue 2 Front Panel Table 2. Front-Panel Display Messages (Continued) Message Full Name Description FRM xxxx Frame: SF, ESF, UNFR Defines the type of frame pattern being received from the DSX-1: SuperFrame (SF), Extended SuperFrame (ESF), or Unframed (UNFR). CODE xxxx Line Code: AMI, B8ZS The line code that the H4TU-C is receiving at its DSX-1 interface, if the DS1...

  • Page 18: Installation

    NSTALLATION 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. H4TU-C-231 CO Shelf Figure 2. Installing the H4TU-C-231 List 1 into a Shelf When installing an H4TU-C in a chassis, be sure to wear an antistatic wrist strap.

  • Page 19: Verification

    LTPH-UM-1138-02, Issue 2 Installation ERIFICATION Once the H4TU-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 (see Table 2 on page Verification without a Downstream Device If there is no downstream device installed: Verify that the H4TU-C powers up.

  • Page 20: Provisioning

    Provisioning LTPH-UM-1138-02, Issue 2 ROVISIONING There are two methods for provisioning: • Use the MODE and SEL buttons on the front panel of the H4TU-C to: — Set system options — Reset the H4TU-C to its factory default settings for system options —...

  • Page 21: Resetting To Factory Default Values

    LTPH-UM-1138-02, Issue 2 Provisioning Resetting to Factory Default Values All user options for the H4TU-C-231 List 1 (Table 6 on page 20) can be set to the factory default values using the MODE and SEL pushbuttons. To set the user options to their default values: Press the SEL pushbutton for 6 seconds until the following message appears: DFLT NO Press the SEL pushbutton while the DFLT NO message is displayed.

  • Page 22: Using A Maintenance Terminal

    Provisioning LTPH-UM-1138-02, Issue 2 SING A AINTENANCE ERMINAL Connecting to a Maintenance Terminal The craft port on the front panel allows you to connect the H4TU-C-231 List 1 to a maintenance terminal (ASCII terminal or PC running a terminal emulation program). Once connected to a maintenance terminal, you can access the maintenance, provisioning, and performance screens.

  • Page 23: Logon Screen

    Identifies the 100 most recent system events and reports the date and time of occurrence. Config Provides standard configuration options, ADC options, BER tester (BERT), 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.
  • Page 24 Help Provides a glossary of terms used in the maintenance screens, a list of navigational keys, print guide, and ADC contact information. September 12, 2003 H4TU-C-231 List 1...

  • Page 25: Provisioning Tasks

    Setting Date and Time Monitor Performance Event Log Config Inventory Report Rlogon Help +----------------------+ | Standard Options -> | ADC Options -> | BERT Generator -> Date and Time -> +-------------------------------+ | Date (mm/dd/yyyy): 01/04/2002| | Time (hh:mm[:ss]): 12:30:01 +-------------------------------+ ID: xxxx--xxxx—-xxxx--xxxx...

  • Page 26: Setting Circuit Id Numbers

    Provisioning LTPH-UM-1138-02, Issue 2 Setting Circuit ID Numbers The Inventory screen provides product information on all units in the system and allows the setting of the circuit and unit identification numbers. Monitor Performance Event Log Config Inventory Report Rlogout Help -------------------------- Product Information ----------------------------...

  • Page 27: Configuring The System

    Standard and ADC configuration options. Standard options are those that are supported by HDSL4 units when connected to units from other vendors. ADC options are an extended set of options that are only available when using ADC HDSL4 units exclusively. For a description of each option and...
  • Page 28 | Remote Disconnect Alarm (RDA) : ENA +-----------------------------------------------+ Use <Spacebar> to cycle through option settings and <Enter> to activate ID: xxxx—-xxxx—-xxxx--xxxx 01/04/2002 12:30:01 H4TU-C System: OK___ Figure 8. Config Menu - ADC Options (Defaults Shown) September 12, 2003 H4TU-C-231 List 1...

  • Page 29: H4Tu-C-231 List 1 Standard Config Screen Options

    Standard Config screen options and lists their front-panel display codes. Table 6 on page 20 describes the ADC Config menu options. Selections in bold typeface are the factory default settings. Table 5. H4TU-C-231 List 1 Standard Config Screen Options...

  • Page 30: H4Tu-C-231 List 1 Adc Config Screen Options

    Configures the power output levels of the H4TU-R customer unit toward the PBOC) Options” network to comply with the Enhanced template as defined in Section 6.1.4.2 on page of ANSI T1.418. Table 6. H4TU-C-231 List 1 ADC Config Screen Options Screen ADC Config Menu Display Selection...
  • Page 31 DS1 service (AMI or B8ZS) being provided by the system. The Auto mode, which can adapt to either AMI or B8ZS, should only be used in applications that require it (such as when ADC system acts as a standby circuit to DS1 circuits whose line codes are not known or may be both AMI and B8ZS).
  • Page 32 Provisioning LTPH-UM-1138-02, Issue 2 required is a function of the distance between the H4TU-C’s equipment bay and the DSX-1 panel. Thus, the equalizer has six discrete settings, in increments of 133 feet to cause the maximized separation of 655 feet. Alarm Pattern (ALMP) Option.

  • Page 33: Configuration Menu - Reset To Factory Defaults

    Event Log Config Inventory Report Rlogout Help +-----------------------+ | Standard Options -> | | ADC Options -> | | BERT Generator -> | | Date and Time -> | | Master Clear Set Factory Defaults +-----------------------+ SETTING FACTORY DEFAULTS..SERVICE MAY BE INTERRUPTED! ARE YOU SURE (Y/N)?

  • Page 34: Clearing The History, Alarm, And Event Log Screens

    Performance Event Log Config Inventory Report Rlogout Help +-----------------------+ | Standard Options -> | | ADC Options -> | | BERT Generator -> | | Date and Time -> | Master Clear -> | Set Factory Defaults +-----------------------+ Clear ALL performance, alarm and event log entries.

  • Page 35: Monitoring System Activity And Performance

    LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance ONITORING YSTEM CTIVITY AND ERFORMANCE The HDSL4 system provides the following maintenance screens for monitoring system activity and assessing performance. • The Monitor screens provide a graphical representation of circuit activity and allow initiation of loopbacks. •...

  • Page 36: Using The Monitor Screen To View System Activity

    Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 SING THE ONITOR CREEN TO YSTEM CTIVITY 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 37 LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance Table 8. Monitor Screen Descriptions Field Description Active Loopback An active loopback is indicated on the lower third of the Monitor screen. Available loopbacks are indicated by gray text. See Table 16 on page 52 for a summary of the HDSL4 generic loopback codes and activation methods.

  • Page 38: Using The Performance Screens To View Performance Data

    Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 SING THE ERFORMANCE CREENS TO ERFORMANCE The Performance screens display: • DS1 and HDSL4 statistics in 31-day, 48-hour, 25-hour, and current history reports. • Alarm statistics for the HDSL4 (Figure 22 on page 35) or DS1 interfaces (Figure 23 on page 36) on a...

  • Page 39: H4Tu-C Ds1 48-Hour Performance History

    LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance Monitor Performance Event Log Config Inventory Report Rlogon Help H4TU-C DS1 25-Hour History (Page 1 of 9) ----------------------------------------------------------------------------- Time CV-L ES-L SES-L UAS-L CV-P ES-P SES-P UAS-P *15:15 *15:30 *15:45 *16:00 16:15 16:30 16:45 17:00...
  • Page 40 Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 Examples of current statistics screens are shown below. Figure 16 Figure 17 show statistics for the DS1 interface at the remote unit and line unit, respectively. These screens report 1-day, 1-hour, and 15-minute statistics. Refer to Table 9 on page 31 for descriptions of the kinds of errors reported on these screens.
  • Page 41 LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance Table 9. Acronyms Used on the DS1 Performance History Screens Acronym Description Acronym Description CV-L Code Violation - Line SES-P Severely Errored Seconds - Path Seconds with SES or CRC(ESF) ≥320 or Total BPV count.

  • Page 42: Performance History At The Hdsl4 Interface

    Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 Performance History at the HDSL4 Interface The HDSL4 interface has 31-day, 48-hour, 25-hour, and current statistic screens for the H4TU-C. Figure 18 Figure 19 below are examples of 31-day and 48-hour performance history screens. Figure 20 on page 33 is an example of a 25-hour performance history screen.

  • Page 43: H4Tu-C Hdsl (Loop 1/Loop 2) 25-Hour Performance History

    LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance Monitor Performance Event Log Config Inventory Rlogon Help Report H4TU-C HDSL 25-Hour History (Page 1 of 9) LP1/LP2 ----------------------------------------------------------------------------- Time LOSWS *06:45 *07:00 *07:15 *07:30 07:45 08:00 08:15 08:30 08:45 09:00 09:15 09:30 Press: (N)ext Page, (P)revious Page, C(l)ear History ------------------------------------------------------------------------------...
  • Page 44 Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 Table 10. Acronyms Used on the HDSL4 Performance History Screens Acronym Description Code Violation Total count of HDSL4 CRC errors Errored Seconds Seconds with HDSL4 CRC ≥1 or LOSW ≥1 Severely Errored Seconds Seconds with HDSL4 CRC ≥50 or LOSW ≥1 Unavailable Seconds Based on 10 contiguous SES occurrences...

  • Page 45: Using The Performance Screens To View Alarm Data

    LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance 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 (H4TU-C DS1, H4TU-R DS1, H4TU-C HDSL, H4DU-1 NET HDSL, H4DU-1 CPE HDSL, H4DU-2 NET HDSL, H4DU-2 CPE HDSL or H4TU-R HDSL), then press ENTER SPACEBAR...

  • Page 46: H4Tu-R Ds1 Alarm History Screen

    Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 Monitor Performance Event Log Config Inventory Report Rlogon Help H4TU-R DS1 Alarm History ----------------------------------------------------------------------------- Alarm First Last Status Count RLOS RAIS LRAI PRM-NE PRM-FE DBER 01/03/02 00:37 01/03/02 00:45 Press: C(l)ear Alarm History ------------------------------------------------------------------------------ Use <Space>...

  • Page 47: Alarm History At The Hdsl4 Interface

    LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance Table 11. DS1 Alarm Descriptions (Continued) Front-Panel Screen Alarm Description Alarm xxx-LOF Loss of Frame—Indicates the incoming DS1 payload does not contain the specific frame pattern, ESF or SF, selected by the FRMG option. Only occurs if the FRMG option is set to SF or ESF. (xxx denotes either TUC or TUR.) (a) This is a DS1-specific alarm that also issues a minor alarm (sent to the management unit or the backplane), if enabled.
  • Page 48 Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 Table 12. HDSL4 Alarm Descriptions Screen Alarm Front-Panel Alarm Description HDSL4 ALARMS at the H4TU-C and H4TU-R LOSW SPNn-LOSW Loss of Sync Word—The HDSL4 loop has lost synchronization. xxxx-MALx Margin—The margin on the HDSL4 loop has dropped below the minimum threshold value set for the system.

  • Page 49: Using The Event Log To Track System Events

    LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance SING THE VENT OG TO RACK YSTEM VENTS To view a running log of system events, press to select the Event Log. The Event Log displays the date and time of the 100 most recent events (most recent displayed first) and provides a description of each event. See Table 13 on page 40 for an alphabetical listing of all possible event log messages.
  • Page 50 Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 Table 13. Event Log Entry Messages List Event Log Messages HDSL4 DC pair open begins/ends on any segment HDSL4 Ground fault begins/ends on any segment H4TU-C Power up/down H4TU-R Power up/down HDSL4 margin alarm (threshold crossed) on any HDSL4 Interface (I/F) HDSL4 loop attenuation (threshold crossed) on any HDSL4 I/F HDSL4 HBER alarm (threshold crossed) on any HDSL4 I/F HDSL4 LOSW begins/ends on any segment...

  • Page 51: Using The Report Menu

    LTPH-UM-1138-02, Issue 2 Monitoring System Activity and Performance SING THE EPORT The Report menu (Figure 26) 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 14 on page 42 describes the four types of reports provided by the Report menu.

  • Page 52: Report Types

    Monitoring System Activity and Performance LTPH-UM-1138-02, Issue 2 Table 14. Report Types Type Contains the following information: Full Report • Circuit and unit identifications • Product information • System configuration • Current performance statistics • Alarm history • Performance history •...

  • Page 53: Testing

    LTPH-UM-1138-02, Issue 2 Testing ESTING This section provides information about front-panel system alarms, LOS and AIS response, the OCT55 test procedure, and loopback testing. YSTEM LARMS Table 15 summarizes all possible system alarms in order of priority as they appear on the front panel. When multiple alarms occur, the front-panel display only reports the highest priority alarm.
  • Page 54 Testing LTPH-UM-1138-02, Issue 2 Table 15. Front-Panel System Alarms (Continued) Front-Panel Alarm Description To Inhibit: Message xxx-DBER DS1 Bit Error Rate The DS1 BER has exceeded the set 24-hour Select DIS for the DBER system option. threshold limit of approximately 10 .

  • Page 55: Alarm Option For Digital Loop Carrier (Dlc) Feed

    LTPH-UM-1138-02, Issue 2 Testing Alarm Option for Digital Loop Carrier (DLC) Feed To improve compatibility with the switch-to-protect features used in DLC feeder applications, the H4TU-C-231 has an Alarm Pattern (ALMP) option that allows you to select either an AIS or LOS DS1 output payload for the following alarms: •...

  • Page 56: Remote Los And Ais Response

    Remove alarm AIS event? pattern Pass on LOS to ALMP Network Standard Option ADC Option Default configurations are in bold. AIS to Network Figure 27. H4TU-R LOS and AIS Response Priorities OCT55 T AMI L ATTERN WITH The OCT55 test pattern can be used in unframed mode to stress the system and verify data integrity. In an SF or ESF framing mode, excessive zero anomalies may occur which cause the H4TU-C to report ES, SES, and UAS errors according to ANSI T1.231-1997.

  • Page 57: Loopback Operation

    Network Premises Figure 28. Loopback Summary ADC HDSL4 supports multiple loopbacks, but a single loopback is the preferred method. HDSL4 automatically rejects activation of closed loop loopbacks. For example, an NREM and CREM cannot be activated at the same time.

  • Page 58: Generic Loopback Commands

    Testing LTPH-UM-1138-02, Issue 2 Generic Loopback Commands The HDSL4 Generic Loopback (GNLB) commands allow you to use inband codes to loop up either NLOC (4-in-7) or NREM (3-in-7) towards the network. In addition, these inband codes loop up CREM (6-in-7) or CLOC (5-in-7) towards the customer.

  • Page 59: Manual Loopback Session

    LTPH-UM-1138-02, Issue 2 Testing Manual Loopback Session A manual loopback session allows you to select any one of the HDSL4 loopbacks listed in Table 16 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 60: Loopback Test Procedures

    Testing LTPH-UM-1138-02, Issue 2 • CDx? = Doubler 1 or Doubler 2, if H4D is available • CLO? = CLOC • COL? = Dual loopback at H4TU-C • DxL? = Dual loopback at Doubler 1 or Doubler 2, if available •...

  • Page 61: Loopback Modes

    LTPH-UM-1138-02, Issue 2 Testing Loopbacks Toward Network TLOS* HRU-412 HRU-412 H4TU-C HDSL4 SPAN LOGIC All ones HRU-412 H4TU-R SMJK* HRU-412 HRU-412 H4TU-C HDSL4 SPAN 2-in-5 11000 HRU-412 All ones H4TU-R FF02 NREM NREM* C742 ‡ 1110000 HRU-412 HRU-412 HRU-412 HRU-412 3-in-7 H4TU-C HDSL4 SPAN...

  • Page 62: Gnlb Test Procedures

    Testing LTPH-UM-1138-02, Issue 2 GNLB Test Procedures Figure 29 on page 51 is a graphical representation of the various loopback configurations with the associated GNLB commands shown. Refer to Table 16 on page 52 for a description of these commands. Table 16.

  • Page 63: A3Lb Test Procedure

    LTPH-UM-1138-02, Issue 2 Testing To perform the GNLB loopback test procedure: Have the CO tester send the NREM (3-in-7) inband loopup code for 5 seconds. You should observe the NREM message on the front-panel display. (The Status LED on the front panel should be green, and the loopback mode should also be identified on the Monitor screen.) Have the CO tester transmit a DS1 test signal towards the H4TU-C and verify that the returned (looped) signal to the test set is error-free.

  • Page 64: A5Lb Test Procedure

    Testing LTPH-UM-1138-02, Issue 2 A5LB Test Procedure Using the codes listed in Table 18, a network tester can activate NLOC or NREM loopbacks (or SMJK, if enabled). A tester at the customer premises can activate CLOC or CREM loopbacks. Table 18. A5LB Addressable Repeater Loopback Commands Name Binary Code (Hexadecimal Equivalent)
  • Page 65 H4TU-C generates 231 (NLOC and CREM) ID bit errors. As a result, the H4TU-C may indicate one more or one less bit error, depending on the test set type and the number of frame bits contained in the block of errored bits. To avoid this uncertainty, ADC recommends sending unframed IR commands.
  • Page 66 Testing LTPH-UM-1138-02, Issue 2 The Time-Out Override function is only valid for the current active loopback. The automatic time-out timer is restored during subsequent loopback sessions. Once the test is complete, do one of the following: • If the system is to loopdown but remain armed, send the IR (Intelligent Repeater) LPDN code (universal loopdown).

  • Page 67: Testing With H4Tu-C Bert Generator

    Monitor Performance Event Log Config Inventory Report Rlogon Help +----------------------+ | Standard Options -> | ADC Options -> BERT Generator -> +--------------------------------------+ | BERT Signal Generator | BERT Signal Pattern : 1 in 8 | BERT Signal Linecode : AMI...

  • Page 68: Testing With H4Tu-R Bert Generator

    Monitor Performance Event Log Config Inventory Report Rlogon Help +----------------------+ | Standard Options -> | ADC Options -> BERT Generator -> +--------------------------------------+ | BERT Signal Generator | BERT Signal Pattern : 1 in 8 | BERT Signal Linecode : AMI...

  • Page 69: Appendix A - Specifications

    LTPH-UM-1138-02, Issue 2 Appendix A - Specifications A - S PPENDIX PECIFICATIONS Power Line Voltage 0, -185 Vdc, ±123 Vdc (Voltage is applied across Loop 1 and Loop 2.) CO Supply -48 Vdc nominal (-42.5 to -56.5 Vdc) (See “Power Consumption”, “Maximum Power Dissipation”, and...

  • Page 70: Power Consumption

    Appendix A - Specifications LTPH-UM-1138-02, Issue 2 System One-way DS1 Delay <700 µs Wander (Looped) Meets MTIE T1.101 requirements Wideband Jitter (Looped) 0.2 UI maximum Narrowband Jitter (Looped) 0.1 UI maximum OWER ONSUMPTION The three most important power parameters of an H4TU-C are its maximum power consumption, its maximum power dissipation and its maximum current drain.

  • Page 71: Maximum Current Drain

    LTPH-UM-1138-02, Issue 2 Appendix A - Specifications The -48 Vdc power consumption is the maximum total power that the H4TU-C consumes or draws from the shelf power source. This parameter is needed when the H4TU-C is in a location remote to the CO it is serving. It determines the battery capacity required to maintain an 8-hour, standby battery reserve for emergency situations.

  • Page 72: H4Tu-C-231 List 1 Card-Edge Connector

    The H4TU-C provides a Network Management Control Bus on pin 46 of the card-edge connector. This allows the various ADC Management System protocols to manage the H4TU-C through the HMU-319 management unit. Whenever the H4TU-C is under management, the MNGD message displays periodically on the front-panel display.

  • Page 73: Craft Port

    LTPH-UM-1138-02, Issue 2 Appendix A - Specifications RAFT Figure 33 shows the pinout for the craft port connector and its connection to a DB-9 or DB-25 connector on a maintenance terminal. Terminal DB-9 Connector (DTE) H4TU-C-231 DB-9 Connector (DCE) TD (Transmit Data) RD (Receive Data) Terminal DB-25 Connector...

  • Page 74: Appendix B - Functional Operation

    HDSL4 technology provides full-duplex services at standard T1 rates over two pairs of copper wire between an H4TU-C, H4Ds (if necessary), and an H4TU-R which comprise one ADC system. ADC systems use Overlapped Pulse Amplitude Modulation Transmission (OPAM) transceiver systems to establish two, full-duplex, 784 kbps data channels between the H4TU-C-231 and a remotely located H4TU-R.

  • Page 75: Spectrum Issues

    LTPH-UM-1138-02, Issue 2 Appendix B - Functional Operation PECTRUM SSUES The asymmetric 776 kbps spectrum, defined in ANSI T1.418 Issue 2, allows the HDSL4 product to be spectrally compatible with ADSL services in adjacent pairs in the same binding groups for all non-doubler applications. A combination of asymmetric and symmetric spectrums is used for ADSL compatibility in doubler applications.

  • Page 76: Appendix C - Compatibility

    The HDSL4 system uses HDSL4 transmission technology as recommended by ANSI committee in compliance with the August 1999 T1-E1.4/99-006R5 HDSL4 standards. The H4TU-C-231 List 1 is compatible with the following DS1 repeater shelves and associated equipment: • ADC HCS-417 (23-inch shelf) • ADC HCS-418 (19-inch shelf) •...

  • Page 77: 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. • Quotation Proposals Sales Assistance •...
  • Page 78 Appendix D - Product Support LTPH-UM-1138-02, Issue 2 September 12, 2003 H4TU-C-231 List 1...

  • Page 79: Appendix E - Abbreviations

    LTPH-UM-1138-02, Issue 2 Appendix E - Abbreviations E - A PPENDIX BBREVIATIONS ACO: Alarm Cutoff H4TU-C: HDSL4 Line Unit ADSL: Asymmetric Digital Subscriber Line H4TU-R: HDSL4 Remote Unit AIS: Alarm Indication Signal HBER: HDSL4 Block Error Rate ALMP: Alarm Pattern HCS: HiGain Card Shelf AMI:...
  • Page 80 Appendix E - Abbreviations LTPH-UM-1138-02, Issue 2 PBOC: Power Back Off - Customer PBON: Power Back Off - Network Payload POTS: Plain Old Telephone Service PRM: Performance Report Messaging PRM-FE: Performance Report Messaging - Far End PRM-NE: Performance Report Messaging - Near End PWRF: Line Power Feed RAI: Remote Alarm Indication...

  • Page 81: Certification And Warranty

    ADC during the 90-day warranty period is, at ADC’s option, either (a) return of the price paid or (b) repair or replace of the software. ADC also warrants that, for a period of thirty (30) days from the date of purchase, the media on which software is stored will be free from material defects under normal use.
  • Page 82 World Headquarters ADC Telecommunications, Inc. PO Box 1101 Minneapolis, Minnesota USA 55440-1101 For Technical Assistance Tel: 800.366.3891 : LTPH-UM-1138-02, I OCUMENT SSUE ISO 9001/TL 9000 ´,j6¶8;¨ 1274228 DNV Certification, Inc. REGISTERED FIRM...

This manual is also suitable for:

H4tu-c-231Hdsl4

Table of Contents