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ADC HiGain H2TU-C-202 User Manual

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HiGain
HiGain
U
M
SER
ANUAL
1F
H2TU-C-202 List 1F Line Unit
Product Catalog: 150-2402-16
CLEI Code: VACHVW8C

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  • Page 1 HiGain HiGain ANUAL H2TU-C-202 List 1F Line Unit Product Catalog: 150-2402-16 CLEI Code: VACHVW8C...
  • 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 152-202-116-01P, Issue 2 March 14, 2000 H2TU-C-202 List 1F...

  • Page 5: Table Of Contents

    152-202-116-02, Issue 2 Table of Contents ABLE OF ONTENTS Overview ____________________________________________________________________________ 1 Features ..............................1 Compatibility .............................2 Applications ............................2 HiGain Regenerators..........................2 Front Panel __________________________________________________________________________ 3 Installation___________________________________________________________________________ 5 Verification ............................5 Verification without a Downstream Device ................6 Verification with a Downstream Device ................6 Provisioning Requirements ........................6 Provisioning__________________________________________________________________________ 7 Using a Maintenance Terminal ......................7...
  • Page 6 Table of Contents 152-202-116-02, Issue 2 Using the Sectionalized Event Log to Isolate Trouble..............38 Clearing the History, Alarm, and Event Log Screens ..............40 Testing _____________________________________________________________________________ 41 Loopback Operation ........................41 Generic Loopback Commands ......................41 Special Loopback Commands ......................43 A1LB, A2LB, and A5LB Test Procedures ...............
  • Page 7 152-202-116-02, Issue 2 List of Figures IST OF IGURES 1. H2TU-C-202 List 1F Front Panel........................3 2. Installing the H2TU-C into a Shelf ........................5 3. Logon Screen..............................9 4. Configuration Menu - Date and Time ......................10 5. Inventory Screen.............................11 6. Configuration Menu ............................12 7.
  • Page 8 List of Tables 152-202-116-02, Issue 2 IST OF ABLES 1. Front-panel Description ........................... 4 2. Status and Alarm LEDs ........................... 4 3. Navigational Keys for the Maintenance Terminal Screens ................8 4. Logon Screen Menus ............................9 5. H2TU-C-202 List 1F Standard Config Screen Options................. 14 6.

  • Page 9: Overview

    152-202-116-02, Issue 2 Overview VERVIEW The HiGain HDSL2 product family is the industry’s first practical implementation of High bit-rate Digital Subscriber Line 2 (HDSL2). HiGain HDSL2 products are fully compliant with the HDSL2 standard (ANSI T1.418-2000). Providing full rate DS1 access using just a single copper pair, HDSL2 is a cost-effective solution that offers an open architecture.

  • Page 10: Compatibility

    Overview 152-202-116-02, Issue 2 • Digital Data Service (DDS) latching loopback • Payload (PL) and HiGain (HG) loopback source identification • Network Management and Administration (NMA) interface • Margin Alarm (MAL) threshold The term ‘DS1’ in this manual refers to DS1 and DSX-1 interfaces. OMPATIBILITY The H2TU-C-202 is designed to mount in 200 and 400 mechanics, high-density shelves.

  • Page 11: Front Panel

    152-202-116-02, Issue 2 Front Panel RONT ANEL Figure 1 shows the H2TU-C-202 List 1F 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 Figure 1.
  • Page 12 Front Panel 152-202-116-02, Issue 2 Table 1. Front-panel Description Front-panel Feature Function List number Identifies the list number of the H2TU-C-202. Status LEDs (four) Table DSX-1 test access jacks Provides line splitting access to the DSX-1 lines from the front panel. Craft (RS-232) port Provides bidirectional communication between the unit and an external terminal to allow configuration and performance monitoring through the maintenance terminal screens.

  • Page 13: Installation

    NSTALLATION Upon receipt of the equipment, visually 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 Telecommunications. H2TU-C-202 H iG a in...

  • Page 14: Verification Without A Downstream Device

    Installation 152-202-116-02, Issue 2 Verification without a Downstream Device If there is no downstream device installed: Verify that the H2TU-C powers up. The four status LEDs illuminate and report the status. (See Table 2 on page 4 for a list of status LED messages.) Verify that the H2TU-C attempts to communicate with downstream devices (the LOOP LED flashes green).

  • Page 15: Provisioning

    152-202-116-02, Issue 2 Provisioning ROVISIONING The H2TU-C-202 List 1F can be provisioned by accessing the HiGain HDSL2 maintenance screens (Figure 3 on page 9). The maintenance screens are accessed through a maintenance terminal (ASCII terminal or a PC running terminal emulation software) connected to the H2TU-C craft port (or to an HMU craft port). This gives you full access to all H2TU-C status, history, inventory, and provisioning screens.

  • Page 16: The Logon Screen

    Provisioning 152-202-116-02, Issue 2 The Logon Screen The maintenance terminal screens allow you to monitor, provision, and troubleshoot an HDSL2 system. To select a menu from the HiGain HDSL2 logon screen (Figure 3 on page 9), do one of the following: •...

  • Page 17: Logon Screen

    Signal Generator configuration sub-menu. To log off from the remote unit, again type Help Menu Provides a glossary of terms used in the HiGain HDSL2 maintenance screens, a list of navigational keys, and ADC contact information. H2TU-C-202 List 1F March 14, 2000...

  • Page 18: Provisioning Tasks

    Provisioning 152-202-116-02, Issue 2 ROVISIONING ASKS After the H2TU-C-202 is successfully installed, perform these basic provisioning tasks: • Set date and time • Set circuit ID numbers • Make any necessary configuration changes • Clear history, alarm, and event log screens to ensure accuracy of new data Setting Date and Time Monitor Performance...

  • Page 19: Setting Circuit Id Numbers

    152-202-116-02, Issue 2 Provisioning 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. Monitor Performance Event Log Config Inventory Rlogon Help -------------------------- Product Information ---------------------------- Unit : H2TU-C...

  • Page 20: Configuring The System

    Provisioning 152-202-116-02, Issue 2 Configuring the System The Config menu (Figure 6) allows you to make the following types of system configuration changes: • Standard options (Figure 7 on page • PairGain options (Figure 8 on page • Date and time (see “Setting Date and Time”...

  • Page 21: Configuration Menu - Standard Options (Defaults Shown)

    152-202-116-02, Issue 2 Provisioning Monitor Performance Event Log Config Inventory Rlogon Help +----------------------+ Standard Options -> +---------------------------------------------------+ | Loopback Timeout (LBTO) : 60 min | | Loop Attenuation Threshold (LATT) [0-40]: 35 dB | Margin Threshold (MARG) [0-15]: 4 | DS1 Frame Formatting (FRMG) AUTO | DS1 Line coding (DS1) : B8ZS...
  • Page 22 Provisioning 152-202-116-02, Issue 2 Table 5 describes the Standard Config screen options and Table 6 on page 15 describes the PairGain Config screen options. Each lists their maintenance terminal screen display codes. Selections in bold typeface are the factory default settings. Table 5.
  • Page 23 152-202-116-02, Issue 2 Provisioning Table 5. H2TU-C-202 List 1F Standard Config Screen Options (Cont.) System Settings Screen Selection Description Screen Options Display Code H2TU-R TLOS TLOS Enables a logic loopback at the H2TU-R when an LOS occurs at its DS1 input, Loopback if enabled at the H2TU-R.
  • Page 24 Provisioning 152-202-116-02, Issue 2 Table 6. H2TU-C-202 List 1F PairGain Config Screen Options (Cont.) System Settings Screen Screen Selection Description Options Display Code Minor Alarm Enables the generation of the output alarm on pins 30 and 22 when a system alarm condition occurs. Disables the generation of the output alarm on pins 30 and 22 when a system alarm condition occurs.
  • Page 25 152-202-116-02, Issue 2 Provisioning HDSL2 BER (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 26 Provisioning 152-202-116-02, Issue 2 DS1 BER (DBER) Option. The DS1 BER alarm occurs when any of the DS1 or DSX-1 performance monitoring parameters listed in Table 7 exceed the counts shown for the 24-hour period between 12:00:00 AM through 11:59:59 PM. These thresholds correspond to a 10 BER.
  • Page 27 152-202-116-02, Issue 2 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 ←...
  • Page 28 Provisioning 152-202-116-02, Issue 2 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 29 152-202-116-02, Issue 2 Provisioning RAI to RAI-CI toward NET (RACI). The H2TU-C-202 List 1F in conjunction with the H2TU-R-402 List 4 support the RAI-CI function. The RAI-CI signal is a RAI signal which contains a signature indicating that an LOF or AIS failure has occurred in the customer installation (CI) at the H2TU-R unit and that the defect or failure which caused the origination of that RAI is not found in the signal from the network.

  • Page 30: Resetting To Factory Defaults

    Provisioning 152-202-116-02, Issue 2 Resetting to Factory Defaults Resetting the H2TU-C to its original factory settings may cause interruption of service. Please note that this reset feature has no effect on the option settings that are controlled by the dip switch.

  • Page 31: Monitoring System Activity And Performance

    152-202-116-02, Issue 2 Monitoring System Activity and Performance ONITORING YSTEM CTIVITY AND ERFORMANCE The H2TU-C-202 provides three sets of 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 32 Monitoring System Activity and Performance 152-202-116-02, Issue 2 Leg 1 Leg 2 Network Out (NET-TX) CPE-RX H2TU-R Network Customer Interface Leg 4 Leg 3 NET-RX Network In (CPE-TX) Figure 11. Sectionalized Analysis of the DS1 Interface When installed on one end of an HDSL2 DS1 circuit, the remote unit provides the following special network benefits: •...

  • Page 33: Using The Monitor Screen To View System Activity

    152-202-116-02, Issue 2 Monitoring System Activity and Performance SING THE ONITOR CREEN TO YSTEM CTIVITY Type 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 34 Monitoring System Activity and Performance 152-202-116-02, Issue 2 Table 11. 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 18 on page 42 for a summary of the HiGain HDSL2 loopback codes.

  • Page 35: Using The Performance Screens To View Performance Data

    152-202-116-02, Issue 2 Monitoring System Activity and Performance 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 the HDSL2 (Figure 21 on page 36) or DS1 interfaces (Figure 19 on page 34...

  • Page 36: Performance History At The Ds1 Interface

    Monitoring System Activity and Performance 152-202-116-02, Issue 2 Performance History at the DS1 Interface Figure 13 is an example of an H2TU-R 31-day DS1 performance screen as viewed from the line unit. In addition, there are 48-hour, 25-hour, and current statistic screens for the DS1 interface for the H2TU-R as well as the H2TU-C.

  • Page 37: Performance History At The Hdsl2 Interface

    152-202-116-02, Issue 2 Monitoring System Activity and Performance Performance History at the HDSL2 Interface The HDSL2 interface (Figure 14) has 31-day, 48-hour, 25-hour, and current statistic screens for the H2TU-C. Monitor Performance Event Log Config Inventory Rlogon Help H2TU-C HDSL2 31 Day History (Page 1 of 3) ------------------------------------------------------------------------------ Date LOSWS...

  • Page 38: Current Statistics Screens For The Ds1 Interface

    Monitoring System Activity and Performance 152-202-116-02, Issue 2 Current Statistics Screens for the DS1 Interface Examples of current statistics screens are shown below. Figure 15 Figure 16 show statistics for the DS1 interface at the remote unit and line unit, respectively. These screens report 15 minute, 1 hour, and 1 day statistics. Refer to Table 12 on page 29 for descriptions of the kinds of errors reported on these screens.

  • Page 39: Current Statistics For Hdsl2 Interface

    152-202-116-02, Issue 2 Monitoring System Activity and Performance Current Statistics for HDSL2 Interface Figure 17 shows statistics for the HDSL2 interface at the H2TU-C. This screen reports 1-day, 1-hour, and 15-minute statistics. Refer to Table 13 on page 30 for descriptions of the kinds of errors reported on this screen. M onitor P erformance E vent Log...

  • Page 40: Blockage Indicator Statistics At The H2Tu-R Ds1 Interface

    Monitoring System Activity and Performance 152-202-116-02, Issue 2 Blockage Indicator Statistics at the H2TU-R DS1 Interface Figure 18 is an example of an H2TU-R Blockage Indicator (BI) History screen as viewed from the line unit following a remote log on. This screen can also be viewed when logged on locally at the remote unit. The BI statistics can also be retrieved using inband or Facility Data Link access.

  • Page 41: Using The Performance Screens To View Alarm Data

    152-202-116-02, Issue 2 Monitoring System Activity and Performance SING THE ERFORMANCE CREENS TO LARM To access the alarm history screens: Type 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 42: H2Tu-R Ds1 Alarm History Screen

    Monitoring System Activity and Performance 152-202-116-02, Issue 2 Monitor Performance Event Log Config Inventory Rlogon Help H2TU-R DS-1 Alarm History ------------------------------------------------------------------------------ Alarm First Last Status Count RLOS 02/15/00 00:00 02/15/00 00:45 ALARM RAIS TX RAI-CI PRM-NE DISABLED PRM-FE DISABLED DBER 02/15/00 00:37 02/15/00 00:45 Press: C(l)ear Alarm History...

  • Page 43: Alarm History At The Hdsl2 Interface

    152-202-116-02, Issue 2 Monitoring System Activity and Performance Alarm History at the HDSL2 Interface Figure 21 shows the H2TU-C HDSL2 alarm history, and Table 16 describes the alarms. Monitor Performance Event Log Config Inventory Rlogon Help H2TU-C HDSL2 Alarm History ------------------------------------------------------------------------------ Alarm First...

  • Page 44: Remote Los And Ais Response

    Monitoring System Activity and Performance 152-202-116-02, Issue 2 Remote LOS and AIS Response Figure 22 shows the different ways the H2TU-R can respond to the network, depending on the configuration of the TLOS, RDA, NLBP, ALMP, and NAIS configuration options described in Table 5 on page 14 Table 6 on page...

  • Page 45: Using The Event Log To Track System Events

    152-202-116-02, 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. •...
  • Page 46 Monitoring System Activity and Performance 152-202-116-02, Issue 2 • Type to return to the H2TU-C logon screen. Monitor Performance Event Log Config Inventory Rlogon Help Sectionalized Event Log (Page 1 of 7) ------------------------------------------------------------------------------ Date and Time NET-TX CPE-RX CPE-TX NET-RX 10/21/99 12:25:00 Alarm AIS-CI...

  • Page 47: Clearing The History, Alarm, And Event Log Screens

    152-202-116-02, Issue 2 Monitoring System Activity and Performance LEARING THE ISTORY LARM VENT CREENS 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 startup session and ensures that your data is meaningful.

  • Page 48: Testing

    Testing 152-202-116-02, Issue 2 Type to clear all screens. ESTING 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 49 152-202-116-02, Issue 2 Testing Figure 26 summarizes the available loopbacks in the system, and Table 18 summarizes the HiGain HDSL2 generic loopback commands. See “Generic Loopback Commands” for the test procedures. Figure 26. Loopback Summary Table 18. Summary of HiGain HDSL2 Loopback Codes and Activation Methods Method of Activation Loopback Code...

  • Page 50: Special Loopback Commands

    Testing 152-202-116-02, Issue 2 HiGain HDSL2 systemsHiGain HDSL2 systems feature the SmartJack option, which can emulate a Network Interface Device (NID) for the purpose of loopback testing of the HiGain HDSL2 circuit. SMJK and NREM loopbacks perform the same functions but their initiation differs. SMJK indicates that the loopback was initiated by the 2-in-5 inband command.
  • Page 51 152-202-116-02, Issue 2 Testing The A1LB loopback selection complies with that proposed for HDSL2 systems in the DS1E1.4/92 recommendation with the following additions: • Query loopback • IOR (Intelligent Office Repeater) power-down • Four loopback time-out choices • Initiation from either end •...

  • Page 52: Loopback Modes

    Testing 152-202-116-02, Issue 2 Figure 27. Loopback Modes March 14, 2000 H2TU-C-202 List 1F...

  • Page 53: A1Lb, A2Lb, And A5Lb Test Procedures

    152-202-116-02, Issue 2 Testing A1LB, A2LB, and A5LB Test Procedures Using the codes listed in Table 19, a network tester can activate NLOC, NRG, or NREM loopbacks (or SMJK, if enabled). A tester at the customer premises can activate CLOC, CRG, or CREM loopbacks. Information specific to HiGain is shown in bold type.
  • Page 54 Testing 152-202-116-02, Issue 2 To perform the A1LB, A2LB, and A5LB 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 55: A3Lb And A4Lb Test Procedures

    152-202-116-02, Issue 2 Testing 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 •...

  • Page 56: Testing With The H2Tu-R Signal Generator

    Testing 152-202-116-02, Issue 2 H2TU-R S ESTING WITH THE IGNAL ENERATOR The H2TU-R Signal Generator screen allows transmission of a test signal from the H2TU-R toward either the CI or the network. Type to logon remotely, then type to select the Config menu. ENTER Use the ↑...

  • Page 57: Oct55 Test Pattern With Ami Code

    152-202-116-02, Issue 2 Testing Table 21. Signal Generator Option Settings Option Settings Test Signal Generator On or Off 23-1 Test Signal Pattern All ones, all zeroes, 2 pseudo random, 20-1 15-1 pseudo random, 2 pseudo random, 1:7 pattern, 2:8 pattern, 3:24 pattern Test Signal Linecode AMI or B8ZS Test Signal Direction...

  • Page 58: Appendix A - Specifications

    Appendix A - Specifications 152-202-116-02, Issue 2 A - S PPENDIX PECIFICATIONS Power HDSL2 Span Voltage 0 or -185 Vdc CO Supply -48 Vdc nominal (-42.5 to -56.5 Vdc) (See “Power Consumption” “Maximum Power Dissipation” “Maximum Current Drain” on page 52.) Electrical Protection Secondary surge and power cross protection on HDSL2 ports.

  • Page 59: Maximum Current Drain

    152-202-116-02, Issue 2 Appendix A - Specifications OWER ONSUMPTION The maximum power consumption and heat dissipation depends upon the type of remote and regenerator units in the system and the CPE power setting. The three most important power parameters of an H2TU-C are its maximum power consumption, maximum power dissipation, and maximum current drain.

  • Page 60: H2Tu-C-202 List 1F Card-Edge Connector

    Network Management Control Bus The H2TU-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 H2TU-C through the HMU-231 HiGain Management Unit. Some H2TU-C-202 List 1F features are affected when it is under management. Consult the management unit practice for further information (see “Appendix D - Product Support”...

  • Page 61: System Alarm Output Pins

    152-202-116-02, Issue 2 Appendix A - Specifications System Alarm Output Pins Pins 22 and 30 on the card-edge connector (see Figure 29) are the H2TU-C-202 System Alarm output pins. RAFT Figure 30 shows the pinout for the craft port connector and its connection to a DB-9 or DB-25 connector on a maintenance terminal.

  • Page 62: 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 HiGain HDSL2 system. HiGain HDSL2 systems use ADC 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-202 and a remotely located...

  • Page 63: Ground Fault Detect

    152-202-116-02, Issue 2 Appendix B - Functional Operation ROUND AULT ETECT The H2TU-C has a Ground Fault Detect (GFD) circuit which detects a ground or a resistive path to ground on any wire of any span in the loop with a non-zero voltage. GFD is always active in HDSL2 because power is fixed at -185 Vdc.

  • Page 64: Appendix C - Compatibility

    Appendix C - Compatibility 152-202-116-02, Issue 2 C - C PPENDIX OMPATIBILITY The HiGain HDSL2 system uses HDSL2 transmission technology as recommended by ANSI committee in compliance with the ANSI T1.418-2000 HDSL2 standards. HiGain HDSL2 complies with GR-63-CORE, TR-TSY-000499, and GR-1089-CORE. DS1 R EPEATER HELVES AND...

  • Page 65: 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 (TAC). • Quotation Proposals Sales Assistance •...
  • Page 66 Appendix D - Product Support 152-202-116-02, Issue 2 March 14, 2000 H2TU-C-202 List 1F...

  • Page 67: Appendix E - Glossary

    152-202-116-02, Issue 2 Appendix E - Glossary E - G PPENDIX LOSSARY ADSL-Asymmetrical Digital Subscriber Line ECI-Equipment Catalog Item AIS-Alarm Indication Signal ENA-Enabled ALM-Alarm EQL-Equalization ALMP-Alarm Pattern ESD-Electrostatic Discharge AMI-Alternate Mark Inversion ESF-DL-DS1 Extended SuperFrame Digital Loop ANSI-American National Standards Institute ESF-Extended SuperFrame AOR-Addressable Office Repeater ES-L-Errored Seconds-Line...
  • Page 68 Appendix E - Glossary 152-202-116-02, Issue 2 MAL-Margin Alarm RAI-CI-Remote Alarm Indication-Customer Installation MARG-Margin Alarm RAIS-Remote Alarm Indication Signal MSEC-Monitored Seconds RDA-Remote Disconnect Alarm RLOS-Remote Loss of Signal ROVR-RAI Overwrite NE - Near End NEBS-Network Equipment-Building System NID-Network Interface Device SDSL-Symmetrical Digital Subscriber Line NI-Network Interface SES-P-Severely Errored Seconds-Pat...

  • Page 69: 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 70 ADC DSL Systems, Inc. 14402 Franklin Avenue Tustin, CA 92780-7013 Tel: 714.832.9922 Fax: 714.832.9924 Technical Assistance Tel: 800.638.0031 Tel: 714.730.3222 Fax: 714.730.2400 : 152-202-116-02 OCUMENT ISO 9001/TL 9000 ´,-(¶8e¨ 1213088 DNV Certification, Inc. REGISTERED FIRM...

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