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ADC HiGain H2TU-C-388 Technical Practice

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H2TU-C-388 List 3E Line Unit
Product: 150-2406-35
CLEI: VACJ1KDE
P
RACTICE

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Summary of Contents for ADC HiGain H2TU-C-388

  • Page 1 HiGain HiGain ECHNICAL RACTICE HiGain HDSL2 • H2TU-C-388 List 3E Line Unit Product: 150-2406-35 CLEI: VACJ1KDE SETUP STATUS...
  • 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-TP-1001-02, Issue 2 February 28, 2001 H2TU-C-388 List 3E...

  • Page 5: Table Of Contents

    LTPH-TP-1001-02, Issue 2 Table of Contents ABLE OF ONTENTS Overview ____________________________________________________________________________ 1 Features ..............................1 Compatibility .............................2 Applications ............................2 Front Panel __________________________________________________________________________ 4 Installation___________________________________________________________________________ 9 Verification ............................10 Verification without an H2TU-R Remote Unit ..............10 Verification with an H2TU-R Remote Unit ..............10 Provisioning_________________________________________________________________________ 11 Using the MODE and SEL Buttons ....................11 Setting Options through MODE and SEL .................11...
  • Page 6 Table of Contents LTPH-TP-1001-02, Issue 2 Testing _____________________________________________________________________________ 46 System Alarms..........................46 Alarm Option for Digital Loop Carrier (DLC) Feed ............47 Retiring System Alarms ....................47 Remote LOS/AIS Response....................48 OCT55 Test Pattern with AMI Line Code ..................48 Loopback Operation ........................
  • Page 7 6. Inventory Menu.............................16 7. Config Menu ..............................17 8. Config Menu - Standard Options (Defaults Shown)..................18 9. Config Menu - ADC Options (Defaults Shown) ..................18 10. Config Menu - Set to Factory Defaults......................28 11. Config Menu - Master Clear .........................29 12. Monitor Screen - Active Loopback with Alarms..................30 13.
  • Page 8 4. Logon Screen Menus........................... 14 5. H2TU-C-388 List 3E Standard Config Menu Options ................19 6. H2TU-C-388 List 3E ADC Config Menu Options ..................20 7. DS1 and DSX-1 24-hour PM Threshold ...................... 22 8. Response to H2TU-R DS1 Frame Conversion Options ................23 9.

  • Page 9: Overview

    LTPH-TP-1001-02, Issue 2 Overview VERVIEW The H2TU-C-388 List 3E 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. Providing full-rate T1 access using a single copper pair, HDSL2 is a cost-effective solution that offers an open architecture.

  • Page 10: Compatibility

    Overview LTPH-TP-1001-02, Issue 2 • Configuration options – Selectable DS1 pre-equalizer – Bipolar Violation Transparency (BPVT) options – Bit Error Rate (BER) alarm – Loss of Signal/Alarm Indicator Signal (LOS/AIS) payload alarm option – Remote provisioning • Compatible with Double Dual Module Plus (DDM+) high-density shelves •...

  • Page 11: Hdsl2 System Model

    LTPH-TP-1001-02, Issue 2 Overview Network Connection HDSL2 System Model NID/CPE DSX-1 HDSL2 HiGain HDSL2 SETUP STS-1 STATUS Wideband-3190 DSX-1 CSU/DSU DSX-1 HDSL2 STS Shelf STS-1 DSX-1 HDSL2 POTS "220" Office Repeater Bay 10BASE-T SECONDARY T1 SECONDARY T1 VOICE CHANNELS RS - 232 10BASE-T LINE MONITOR...

  • Page 12: Front Panel

    Front Panel LTPH-TP-1001-02, Issue 2 RONT ANEL Figure 2 shows the H2TU-C-388 List 3E front panel. Table 1 on page 5 describes the front-panel components. For a list of front-panel display messages, refer to Table 2 on page 6. For pinout diagrams of the H2TU-C card-edge connector and craft port, refer to “Appendix A - Specifications”...
  • Page 13 LTPH-TP-1001-02, Issue 2 Front Panel 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.

  • Page 14: Front-Panel Display Messages

    Front Panel LTPH-TP-1001-02, Issue 2 Table 2 lists the front-panel display messages. The display reports the code of a pertinent alarm, loopback, or diagnostic message and, in some cases, is followed by a second message that modifies the first message with a value or current configuration setting.
  • Page 15 LTPH-TP-1001-02, Issue 2 Front Panel Table 2. Front-Panel Display Messages (Cont.) Message Full Name Description LOOPBACK MESSAGES CLOC Customer Local Loopback Signal from customer is looped back to the customer at the H2TU-R. CREM Customer Remote Loopback Signal from customer is looped back to the customer at H2TU-C-388.
  • Page 16 Front Panel LTPH-TP-1001-02, Issue 2 Table 2. Front-Panel Display Messages (Cont.) Message Full Name Description SYSTEM INFORMATION MESSAGES CODE xxxx Line Code: AMI, B8ZS The DS1 line code setting: Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution (B8ZS). 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...

  • Page 17: Installation

    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. H2TU-C-388 H iG ai n •...

  • Page 18: Verification

    Installation LTPH-TP-1001-02, Issue 2 ERIFICATION Once the H2TU-C-388 List 3E 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 an H2TU-R Remote Unit If there is no H2TU-R remote unit installed: Verify that the H2TU-C powers up.

  • Page 19: Provisioning

    LTPH-TP-1001-02, Issue 2 Provisioning ROVISIONING There are two provisioning methods: • Use the MODE and SEL buttons on the front panel of the H2TU-C to: – Set system options – Reset the H2TU-C to its factory default settings for system options –...

  • Page 20: Resetting To Factory Defaults

    Provisioning LTPH-TP-1001-02, Issue 2 Resetting to Factory Defaults All user options for the H2TU-C-388 (Table 6 on page 20) can be set to the factory default values using the MODE and SEL buttons. To set the user options to their default values: Press the SEL button for 6 seconds until the following message appears: DFLT NO Press the SEL button while the DFLT NO message is displayed.

  • Page 21: Using A Maintenance Terminal

    LTPH-TP-1001-02, Issue 2 Provisioning SING A AINTENANCE ERMINAL Connecting to a Maintenance Terminal A miniature, 3-pin, 210 Bantam-type jack on the front panel serves as a craft port and allows connection between the H2TU-C-388 and a maintenance terminal (ASCII terminal or PC running a terminal emulation program). A 210-to-DB-9 adapter is provided with every unit to facilitate the use of standard RS-232, DB-9 cables (see Figure 31 on page 60).

  • Page 22: Logon Screen

    Identifies the 100 most recent system events and reports the origin, date and time of occurrence, and message. 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.

  • Page 23: Provisioning Tasks

    Setting Date and Time Monitor Performance Event Log Config Inventory Report Rlogon Help +----------------------+ | Standard Options -> | ADC Options -> Date and Time -> +-------------------------------+ | Date (mm/dd/yyyy): 02/01/2001 | Time (hh:mm[:ss]): 12:30:01 +-------------------------------+ ID: xxxx--xxxx—-xxxx—-xxxx 02/01/2001 12:30:01...

  • Page 24: Setting Circuit Id Numbers

    Provisioning LTPH-TP-1001-02, Issue 2 Setting Circuit ID Numbers The Inventory menu provides product information on all units in the system and allows setting of the circuit and unit identification numbers. M o n i t o r P e r f o r m a n c e E v e n t L o g C o n f i g I n v e n t o r y...

  • Page 25: Configuring The System

    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 each option and a list...
  • Page 26 | Fractional T1 Mode (FT1) : DIS +-----------------------------------------------+ Use <Spacebar> to cycle through option settings and <Enter> to activate ID: xxxx—-xxxx—-xxxx--xxxx 02/01/2001 12:30:01 H2TU-C System: OK___ Figure 9. Config Menu - ADC Options (Defaults Shown) February 28, 2001 H2TU-C-388 List 3E...

  • Page 27: H2Tu-C-388 List 3E Standard Config Menu Options

    Standard Config screen options and lists their front-panel display codes. Table 6 on page 20 describes the ADC Config screen options and lists their front-panel display codes. Selections in bold type are the factory default settings. Table 5. H2TU-C-388 List 3E Standard Config Menu Options...

  • Page 28: H2Tu-C-388 List 3E Adc Config Menu Options

    Provisioning LTPH-TP-1001-02, Issue 2 Table 6. H2TU-C-388 List 3E ADC Config Menu Options Front-panel ADC Config Menu Display Selection Description Options Code Line Power Feed PWRF Disables powering to the HDSL2 pair. Keeps the HDSL2 line voltage at nominal -185 Vdc.
  • Page 29 LTPH-TP-1001-02, Issue 2 Provisioning Table 6. H2TU-C-388 List 3E ADC Config Menu Options (Cont.) Front-panel ADC Config Menu Display Selection Description Options Code SF-RAI to RACI Allows DS1 SF-RAI (yellow LED) signal received by the H2TU-R to be SF-RAI-CI converted to an SF-RAI-CI signal towards the network.
  • Page 30 Provisioning LTPH-TP-1001-02, Issue 2 HDSL2 BER 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 31 LTPH-TP-1001-02, Issue 2 Provisioning 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 datalink towards the network. During conversion, frame bit errors are regenerated to ensure transparency.

  • Page 32: Extended Superframe Format

    Provisioning LTPH-TP-1001-02, Issue 2 Table 9. Extended SuperFrame Format Frame Bits Framing Pattern Frame Bit for Datalink Cyclical Redundancy ESF Number Sequence (FPS) - 2 kb/s (FDL) - 4 kb/s Check (CRC) Bits - 2 kb/s February 28, 2001 H2TU-C-388 List 3E...
  • Page 33 LTPH-TP-1001-02, Issue 2 Provisioning Table 10. SuperFrame Format Frame Bits SF Number Terminal Framing Bit SuperFrame Signaling Bit Fractional T1 Mode (FT1) Option. Fractional T1 circuits can be used in feeder networks to provide frame relay service. If such circuits are maintained by a DDS test group, then these circuits must respond to DDS/DS0 latching loopback commands, the only tool test groups have at their disposal.

  • Page 34: Higain Hdsl2 Loopback Vs. Latching Sequence

    Provisioning LTPH-TP-1001-02, Issue 2 The sequences in Table 11 are sent in timeslot 1. The S in the Network Code column is a “don’t care” bit. The loopback is activated after the detection of Sequence 6. Upon completion of the enable sequence, the Test Center continues to transmit FEV bytes in multiples of 20 until FEV confirmation bytes are returned, or until about 2 seconds have elapsed.
  • Page 35 LTPH-TP-1001-02, Issue 2 Provisioning Table 13. Response of H2TU-C and H2TU-R to LOS and AIS H2TU-C Output Pattern H2TU-C H2TU-R H2TU-R Front-Panel Framing Payload Case Option Input Input Output Status Screen Display 01111110 LOS/AIS 01111110 ALRM UNFR RLOS/RAIS RLOS/RAIS XMT IDLE 01111110 LOS/AIS 01111110...
  • Page 36 Event Log Config Inventory Report Rlogon Help +----------------------+ | Standard Options -> | ADC Options -> | Date and Time -> | Master Clear Set Factory Defaults +----------------------+ SETTING FACTORY DEFAULTS...SERVICE MAY BE INTERRUPTED! ARE YOU SURE (Y/N)? ID: xxxx--xxxx—--xxxx-—xxxx...

  • Page 37: Clearing The History, Alarm, And Event Log Screens

    Event Log Config Inventory Report Rlogon Help +----------------------+ | Standard Options -> | ADC Options -> | Date and Time -> Master Clear | Set Factory Defaults | +----------------------+ Clear ALL performance, alarm and event log entries. Are you sure (Y/N)? ID: xxxx--xxxx—-xxxx—-xxxx...

  • Page 38: Monitoring System Activity And Performance

    Monitoring System Activity and Performance LTPH-TP-1001-02, Issue 2 ONITORING YSTEM CTIVITY AND ERFORMANCE The H2TU-C-388 List 3E 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 39 LTPH-TP-1001-02, Issue 2 Monitoring System Activity and Performance To initiate a loopdown of all active loopbacks, press the SPACEBAR to select LPDN, then press ENTER When prompted with the message: Are you sure (Y/N)?, press to initiate the loopdown or cancel.

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

    Monitoring System Activity and Performance LTPH-TP-1001-02, Issue 2 SING THE ERFORMANCE CREENS TO ERFORMANCE The Performance screens display: • CRC statistics for the HDSL2 or DS1 interface in 31-day, 48-hour, 25-hour, and current history reports. • Alarm statistics for DS1 interfaces (Figure 22 on page 39 Figure 23 on page 40) or the HDSL2...
  • Page 41 LTPH-TP-1001-02, Issue 2 Monitoring System Activity and Performance Monitor Performance Event Log Config Inventory Report Rlogon Help H2TU-R DS1 25 Hour History (Page 1 of 9) ------------------------------------------------------------------------------ Time CV-L ES-L SES-L UAS-L PDVS-L ES-P SES-P UAS-P PRM-NE PRM-FE *22.15 *22.30 *22.45 *23:00 23:15...
  • Page 42 Monitoring System Activity and Performance LTPH-TP-1001-02, Issue 2 Table 15. Error Acronyms Used on the DS1 Performance History Screens Error Acronym Description Error Acronym Description CV-L Code Violation - Line PRM-FE Performance Report Monitoring - Far End Total BPV count. The PRM from the network indicates errors, and the signal received from the CPE is error-free.

  • Page 43: Performance History At The Hdsl2 Interface

    LTPH-TP-1001-02, Issue 2 Monitoring System Activity and Performance 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 16 Figure 17 below are examples of 31-day and 48-hour performance history screens. Figure 18 on page 36 is an example of a 25-hour performance history screen.

  • Page 44: H2Tu-C Hdsl2 25-Hour Performance History

    Monitoring System Activity and Performance LTPH-TP-1001-02, Issue 2 Monitor Performance Event Log Config Inventory Report Rlogon Help H2TU-C HDSL2 25 Hour History (Page 1 of 9) ----------------------------------------------------------------------------- Time LOSWS *22:15 *22:30 *22:45 *23:00 23:15 23:30 23:45 00:00 00:15 00:30 00:45 01:00 Press: (N)ext Page, (P)revious Page, C(l)ear History ------------------------------------------------------------------------------...

  • Page 45: Current Statistics Screens For The Ds1 Interface

    LTPH-TP-1001-02, Issue 2 Monitoring System Activity and Performance Current Statistics Screens for the DS1 Interface Examples of current statistics screens are shown below. Figure 19 Figure 20 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 15 on page 34 for descriptions of the kinds of errors reported on these screens.

  • Page 46: Current Statistics Screens For The Hdsl2 Interface

    Monitoring System Activity and Performance LTPH-TP-1001-02, Issue 2 Current Statistics Screens for the HDSL2 Interface Figure 21 shows statistics for the HDSL2 interface at the H2TU-C. This screen reports 1-day, 1-hour, and 15-minute statistics. Refer to Table 16 on page 36 for descriptions of the kinds of errors reported on this screen.

  • Page 47: Using The Performance Screens To View Alarm Data

    LTPH-TP-1001-02, Issue 2 Monitoring System Activity and Performance SING THE ERFORMANCE CREENS TO LARM To access the alarm history screens: Press to select the Performance menu. Press the SPACEBAR to select an interface (H2TU-C DS1, H2TU-R DS1, H2TU-C HDSL2, or H2TU-R HDSL2), then press ENTER Press the...

  • Page 48: H2Tu-R Ds1 Alarm History Screen

    Monitoring System Activity and Performance LTPH-TP-1001-02, Issue 2 Monitor Performance Event Log Config Inventory Report Rlogon Help H2TU-R DS1 Alarm History ----------------------------------------------------------------------------- Alarm First Last Status Count RLOS RAIS TX RAI-CI PRM-NE PRM-FE DBER 02/01/01 00:37 02/01/01 00:45 Press: C(l)ear Alarm History ------------------------------------------------------------------------------ Use <Space>...

  • Page 49: Alarm History At The Hdsl2 Interface

    LTPH-TP-1001-02, Issue 2 Monitoring System Activity and Performance Alarm History at the HDSL2 Interface Figure 24 shows the H2TU-C HDSL2 alarm history, and Table 18 describes the alarms. Monitor Performance Event Log Config Inventory Report Rlogon Help H2TU-R DS1 Alarm History ----------------------------------------------------------------------------- Alarm First...

  • Page 50: Using The System Event Log To Track Events

    Monitoring System Activity and Performance LTPH-TP-1001-02, Issue 2 SING THE YSTEM VENT OG TO RACK 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 19 on page 43 for a complete list of event log messages.
  • Page 51 LTPH-TP-1001-02, Issue 2 Monitoring System Activity and Performance Table 19. Event Log Entry Messages List Event Log 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) Any Loop Up (any segment) Any provisioning option change: <provisioning mnemonic>: changed from <old>...

  • Page 52: Using The Report Menu

    Monitoring System Activity and Performance LTPH-TP-1001-02, Issue 2 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 20 on page 45 describes the four types of line and remote unit reports provided by the Report menu.

  • Page 53: Report Types

    LTPH-TP-1001-02, Issue 2 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 •...

  • Page 54: Testing

    Testing LTPH-TP-1001-02, Issue 2 ESTING This section provides information about front panel system alarms, LOS and AIS response, the OCT55 test procedure, and loopback testing. YSTEM LARMS Table 21 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 55: Alarm Option For Digital Loop Carrier (Dlc) Feed

    LTPH-TP-1001-02, Issue 2 Testing Table 21. Front-Panel System Alarms Summary (Cont.) 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 .

  • Page 56: Remote Los/Ais Response

    LOS to CPE NLBP Remove alarm AIS event? pattern [AIS] AIS to CPE [ENA] FT1 idle to NET & CPE [DIS] ADC Option [LOS] ALMP Pass on LOS to NET Standard Option Default configurations [AIS] are in bold. [AIS] NAIS...

  • Page 57: Loopback Operation

    LTPH-TP-1001-02, Issue 2 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.

  • Page 58: Generic Loopback Commands

    Special Loopback Commands In addition to the GNLB loopback command mode, a HiGain HDSL2 system can be configured for one of three special loopback command modes. These are selected from the maintenance terminal Config menu, ADC Options screen (see Table 6 on page...

  • Page 59: Smartjack Loopback Commands

    LTPH-TP-1001-02, Issue 2 Testing SmartJack Loopback Commands The HiGain HDSL2 SmartJack (SMJK) Loopback (LPBK) commands allow you to use inband, out-of-band, and universal codes to initiate and terminate loopback testing of the HiGain HDSL2 circuit. (See “SmartJack Test Procedure” on page 56 for additional information.) ANUAL OOPBACK...

  • Page 60: Inband Loopback Session

    Testing LTPH-TP-1001-02, Issue 2 • CLO? = CLOC Press SEL to activate the selected loopback. The previous loopback is terminated. Once a loopback is selected and activated, the loopback stays active until it times out (based on the LBTO setting). When a loopback times out, the display then returns to the normal display mode.

  • Page 61: A2Lb Test Procedures

    LTPH-TP-1001-02, Issue 2 Testing Loopbacks Toward Network TLOS* HRU-412 HRU-412 HDSL2 SPAN H2TU-C All ones LOGIC HRU-412 H2TU-R SMJK* 1-in-6 100000 HRU-412 HRU-412 H2TU-C HDSL2 SPAN All ones HRU-412 2-in-5 11000 H2TU-R FF02 NREM NREM* C742 ‡ H2TU-C HRU-412 HRU-412 HRU-412 HRU-412 HDSL2 SPAN...
  • Page 62 Testing LTPH-TP-1001-02, Issue 2 If the Arming code is not returned after 5 seconds, the system may be armed, but there is no active loopback. Table 23. Addressable Repeater Loopback Commands (A2LB) (Hexadecimal Binary Code Loopback Description Equivalent) ARMING or NI LPBK (inband) 11000-11000 ...
  • Page 63 H2TU-C generates 231 (NLOC and CREM) ID bit errors. As a result, the H2TU-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 64: A3Lb And A4Lb Test Procedures

    Testing LTPH-TP-1001-02, Issue 2 A3LB and A4LB Test Procedures The H2TU-C-388 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 (see “Setting the Loopback Time-Out Option”...

  • Page 65: Appendix A - Specifications

    LTPH-TP-1001-02, Issue 2 Appendix A - Specifications A - S PPENDIX PECIFICATIONS Power Line Voltage 0, -185 Vdc CO Supply -48 Vdc nominal (-42.5 Vdc to -56.5 Vdc) (See “Power Consumption” “Maximum Power Dissipation” “Maximum Current Drain” on page 58.) Electrical Protection Secondary surge and power cross protection on HDSL2 ports.

  • Page 66: Power Consumption

    Appendix A - Specifications LTPH-TP-1001-02, Issue 2 OWER ONSUMPTION The three most important power parameters of an H2TU-C are its maximum power consumption, its maximum power dissipation and its maximum current drain. Table 26 lists the H2TU-C power parameters for line- and local-powered circuits on 9 kft, 26 AWG loops. Table 26.

  • Page 67: Loop Attenuation

    The H2TU-C provides a Network Management Control Bus on pin 104 of the card-edge connector. This allows the various ADC Management System protocols to manage the H2TU-C through the HMU-319 HiGain Management Unit. Whenever the H2TU-C is under management, the MNGD message displays periodically on the front-panel display.

  • Page 68: Fuse Alarm

    Appendix A - Specifications LTPH-TP-1001-02, Issue 2 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 31 shows the craft port adaptor and its connection to a DB-9 or DB-25 connector on a maintenance terminal.

  • Page 69: Appendixb - Functional Operation

    UNCTIONAL PERATION ADC’s HDSL2 technology provides full-duplex services at standard T1 rates over copper wires between an H2TU-C and an H2TU-R, which comprise one HiGain HDSL2 system. HiGain HDSL2 systems use Overlapped Pulse Amplitude Modulation (PAM) Transmission with Interlocking Spectra (OPTIS) transceiver systems to establish full-duplex, 1.552 kbps data channels between the H2TU-C-388 List 3E and a remotely located...

  • Page 70: Appendixc - Compatibility

    Appendix C - Compatibility LTPH-TP-1001-02, Issue 2 C - C PPENDIX OMPATIBILITY The HiGain HDSL2 system uses HDSL2 transmission technology as recommended by ANSI committee in compliance with the August, 1999 T1-E1.4/99-006R5 HDSL2 standards. The H2TU-C-388 List 3E List 3E is compatible with the following DDM+ high-density shelves and associated equipment: •...

  • Page 71: Appendixd - Product Support

    ADC Customer Service Group provides expert pre-sales and post-sales support and training for all its products. ECHNICAL UPPORT Technical support is available 24 hours a day, 7 days a week by contacting the ADC Wireline Systems Division Customer Service Engineering Group at one of the following numbers: Telephone: 800.638.0031 or 714.730.3222...
  • Page 72 Pack the equipment in a shipping carton. Write the ADC Wireline Systems Division address and the RMA number you received from Customer Service clearly on the outside of the carton and return to: ADC Wireline Systems Division 14352 Franklin Ave.

  • Page 73: Appendix E - Abbreviations

    LTPH-TP-1001-02, Issue 1 Appendix E - Abbreviations E - A PPENDIX BBREVIATIONS ACO: Alarm Cutoff H2TU-R: HiGain HDSL2 Remote Unit ACON: Auto Conversion of DS1 frame HBER: HDSL2 Block Error Rate AIS: Alarm Indication Signal HCDS: High Capacity Digital Service AMI: Alternate Mark Inversion HCS:...
  • Page 74 Appendix E - Abbreviations LTPH-TP-1001-02, Issue 1 PRM-FE: Performance Report Messaging - Far End PRM-NE: Performance Report Messaging - Near End PWRF: Power Feed Remote Alarm Indication RAIS: Remote Alarm Indication Signal RLOS: Remote Loss of Signal SES: Severely Errored Seconds SuperFrame SMJK: SmartJack SPLB: Special Loopback...

  • Page 75: 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 76 ADC DSL Systems, Inc. 14402 Franklin Avenue Tustin, CA 92780-7013 Tel: 714.832.9922 Fax: 714.832.9924 Technical Assistance 800.638.0031 714.730.3222 : LTPH-TP-1001-02, I OCUMENT SSUE ISO 9001 ´,#V¶2V¨ DNV Certification, Inc. Certificated Firm 1203542...

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