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HiGain HiGain ECHNICAL RACTICE H2TU-C-202 List 3E Part Number: 150-2402-35 CLEI Code: VACJ1KCE...
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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.
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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.
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Inspecting Shipment LTPH-TP-1005-02, Issue 2 February 28, 2001 H2TU-C-202 List 3E...
LTPH-TP-1005-02, Issue 2 Table of Contents ABLE OF ONTENTS Overview ____________________________________________________________________________ 1 Features ..............................1 Compatibility .............................2 Applications ............................2 Front Panel __________________________________________________________________________ 4 On-board DIP Switch S1........................6 Installation___________________________________________________________________________ 7 Verification ............................8 Verification without an H2TU-R Remote Unit ..............8 Verification with an H2TU-R Remote Unit ................8 Provisioning__________________________________________________________________________ 9 Using a Maintenance Terminal ......................9 Connecting to a Maintenance Terminal................9...
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Table of Contents LTPH-TP-1005-02, Issue 2 Loopback Operation ........................45 Generic Loopback Commands..................46 Special Loopback Commands................... 46 SmartJack Loopback Commands..................47 Manual Loopback Session....................... 47 Loopback Test Procedures ......................47 General Troubleshooting Tips ..................47 GNLB Test Procedures ..................... 48 A2LB Test Procedures ......................
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7. Inventory Screen............................13 8. Config Menu..............................14 9. Config Screen – Standard Options (defaults shown)...................15 10. Config Screen – ADC Options (Defaults Shown)..................15 11. Config Menu - Set Factory Defaults......................25 12. Config Menu - Master Clear........................25 13. Monitor Screen - Active Loopback with Alarms ..................27 14.
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Logon Screen Menus ..........................11 5. H2TU-C-202 List 3E Standard Config Screen Options ................16 6. H2TU-C-202 ADC Config Screen Options ....................17 7. DS1/DSX-1 24-hour PM Threshold ......................19 8. Response to H2TU-R DS1 Frame Conversion Options ................20 9.
LTPH-TP-1005-02, Issue 2 Overview VERVIEW The H2TU-C-202 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.
Front Panel LTPH-TP-1005-02, Issue 2 RONT ANEL Figure 2 shows the H2TU-C-202 List 3E front panel. Table 1 on page 5 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 HiGain...
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LTPH-TP-1005-02, Issue 2 Front Panel Table 1. Front-Panel Description Front-Panel Features Function List number Identifies the list number of the H2TU-C-202. DIP switch S1 A switch bank, located on the board, containing eight switches. (See Figure 3 (located on circuit Table 2 on page 6 for details.) board)
Front Panel LTPH-TP-1005-02, Issue 2 DIP S BOARD WITCH The H2TU-C-202 circuit board has an 8-position DIP switch, S1 (see Figure 3). The functions of DIP switch S1 are listed in Table DIP switch S1 is the only means by which the options it controls can be set. The maintenance terminal screens showing these option settings are read-only.
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-202 A LM LB K...
Installation LTPH-TP-1005-02, Issue 2 ERIFICATION Once the H2TU-C-202 is installed, verify that it is operating properly. To do this, monitor the four status LEDs. (See Table 1 on page 5 for status LED descriptions.) Verification without an H2TU-R Remote Unit If there is no H2TU-R remote unit installed: Verify that the H2TU-C powers up.
LTPH-TP-1005-02, Issue 2 Provisioning ROVISIONING There are two provisioning methods: • Setting the DIP switch located on the H2TU-C-202 circuit card • Using 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) to access the HiGain maintenance screens (Figure 5 on page 10).
Procomm or HyperTerminal, see the Help menu for instructions. Menu bar Monitor Performance Event Log Config Inventory Report Rlogon Help +------------------------------------------+ ADC DSL Systems, Inc. HiGain HDSL2 Voice: 800.638.0031 714.832.9924 +------------------------------------------+ ID: xxxx--xxxx--xxxx—-xxxx 02/01/2001 12:30:01 H2TU-C System: OK___...
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.
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 H2TU-C...
LTPH-TP-1005-02, Issue 2 Provisioning Setting Circuit ID Numbers The Inventory screen 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 Report Rlogon Help -------------------------- Product Information ---------------------------- Unit...
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 HDSL2 units exclusively. For a description of each option...
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| 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 10. Config Screen – ADC Options (Defaults Shown) H2TU-C-202 List 3E February 28, 2001...
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LTPH-TP-1005-02, Issue 2 Table 5 describes the standard Config screen options. Table 6 on page 17 describes the ADC Config screen options. Selections in bold type are the factory default settings. Table 5. H2TU-C-202 List 3E Standard Config Screen Options Standard Config...
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LTPH-TP-1005-02, Issue 2 Provisioning Table 6. H2TU-C-202 ADC Config Screen Options ADC Config Selection Description Screen Options Line Power Disables powering to the HDSL2 pair. Feed Keeps the HDSL2 line voltage at nominal -185 Vdc. Remote Enables remote provisioning. Provisioning Disables remote provisioning.
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Provisioning LTPH-TP-1005-02, Issue 2 Table 6. H2TU-C-202 ADC Config Screen Options (Continued) ADC Config Selection Description Screen Options Performance SPRM The H2TU-R generates Supplemental PRM (SPRM) every second if no PRM is Report Messaging present from the CPE within 5 seconds of a reset or an LOS/AIS/FOF condition occurs.
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LTPH-TP-1005-02, Issue 2 Provisioning H2TU-C Equalization (EQL) Option. Equalization is the configuration of system transmission characteristics within specified limits. An adaptive equalizer inserts a frequency-shaped loss that corresponds to an equivalent addition of an appropriate cable length. By simulating the additional cable loss necessary for correct operation, the equalizer compensates for a range of variation in transmission path characteristics.
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Provisioning LTPH-TP-1005-02, Issue 2 This option has the following settings: • OFF: No frame conversion takes place. All framing issues are determined by the FRMG option settings of AUTO and UNFR. • ACON: This is the automatic conversion setting. If the system detects ESF from the network and SF from the CPE, it automatically converts the CPE SF to ESF towards the network as well as the network ESF to SF towards the CPE.
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LTPH-TP-1005-02, Issue 2 Provisioning 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 Table 10. SuperFrame Format Frame Bits SF Number Terminal Framing Bit...
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Provisioning LTPH-TP-1005-02, Issue 2 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.
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LTPH-TP-1005-02, Issue 2 Provisioning The Test Center transmits a group of 40 TIP bytes to loop down the loopback. It continues to transmit TIP bytes in multiples of 20 until the TIP bytes are not returned or until about 2 seconds have elapsed. If the bytes are absent, a successful loopdown is reported;...
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Provisioning LTPH-TP-1005-02, Issue 2 RAI-CI is transmitted toward the network when these two conditions are simultaneously true at the point from which RAI-CI is originated (at the H2TU-R, towards the network): • RAI is received from the CI • No LOF, LOS, or AIS failure is detected in the signal received from the network. Since RAI-CI meets the definition of RAI, RAI-CI can be detected and used exactly as an RAI.
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...
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Provisioning LTPH-TP-1005-02, Issue 2 To clear the Event Log, type to select the Event Log screen, then type to clear the screen. To clear an individual history or alarm screen, do the following: Press to select the Performance screen. Press the SPACEBAR to select either interface (H2TU-C DS1, H2TU-R DS1, H2TU-C HDSL2 or ENTER...
LTPH-TP-1005-02, Issue 2 Monitoring System Activity and Performance ONITORING YSTEM CTIVITY AND ERFORMANCE The HDSL2 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. •...
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Monitoring System Activity and Performance LTPH-TP-1005-02, Issue 2 To initiate a loopback, press the SPACEBAR to cycle though the loopback choices. Press ENTER to make your choice. When prompted with the message: Are you sure (Y/N)?, press to initiate the loopback or cancel.
LTPH-TP-1005-02, 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 DS1 interfaces (Figure 23 on page 36 Figure 24 on page 36) or the HDSL2...
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Monitoring System Activity and Performance LTPH-TP-1005-02, Issue 2 Monitor Performance Event Log Config Inventory Report Rlogon Help H2TU-R DS-1 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 9:30 9:45 10:00 10:15 10:30...
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LTPH-TP-1005-02, Issue 2 Monitoring System Activity and Performance Table 15. Error Acronyms Used on the DS1 Performance History Screens Error Acronym Description Error Acronym Description ES-L Errored Seconds - Line SES-P Severely Errored Seconds - Path Seconds with BPV ≥ 1. Seconds with SEF or CRC(ESF) ≥...
Monitoring System Activity and Performance LTPH-TP-1005-02, Issue 2 Performance History at the HDSL2 Interface Figure 17 is an example of a 31-day HDSL2 performance screen as viewed from the H2TU-C. The HDSL2 interface has 31-day, 48-hour, 25-hour, and current statistic screens for the H2TU-C. Table 16 on page 33 describes the acronyms used in the performance history screens.
Monitoring System Activity and Performance LTPH-TP-1005-02, Issue 2 Current Statistics Screens for the DS1 Interface Examples of current statistics screens are shown below. Figure 20 Figure 21 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 31 for descriptions of the kinds of errors reported on these screens.
LTPH-TP-1005-02, Issue 2 Monitoring System Activity and Performance Current Statistics for HDSL2 Interface Figure 22 shows statistics for the HDSL2 interface at the H2TU-C. This screen reports 1-day, 1-hour, and 15-minute statistics. Refer to Table 15 on page 31 for descriptions of the kinds of errors reported on this screen. Monitor Performance Event Log...
Monitoring System Activity and Performance LTPH-TP-1005-02, Issue 2 Alarm History at the DS1 Interface The Alarm History screen reports DS1 statistics for the H2TU-C (Figure 23) and the H2TU-R (Figure 24) on a continuous basis. The types of alarms reported are described in Table 17 on page 37.
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LTPH-TP-1005-02, Issue 2 Monitoring System Activity and Performance Table 17. DS1 Alarm Descriptions Screen Alarm Description H2TU-C DS1 ALARMS (see Figure 23 on page LLOS Local Loss of Signal—Loss of the H2TU-C DSX-1 input signal. LAIS Line Alarm Indication Signal—Indicates an AIS (all ones) pattern is being received from the local DS1 input port.
Monitoring System Activity and Performance LTPH-TP-1005-02, Issue 2 Alarm History at the HDSL2 Interface Figure 25 shows the H2TU-C HDSL2 alarm history, and Table 18 describes the alarms. Monitor Performance Event Log Config Inventory Report Rlogon Help H2TU-C HDSL2 Alarm History ----------------------------------------------------------------------------- Alarm First...
LTPH-TP-1005-02, 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 19 on page 40 for a complete list of event log messages.
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Monitoring System Activity and Performance LTPH-TP-1005-02, Issue 2 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>...
LTPH-TP-1005-02, Issue 2 Monitoring System Activity and Performance SING THE EPORT The Report menu 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 (see Figure 27).
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Monitoring System Activity and Performance LTPH-TP-1005-02, Issue 2 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 •...
LTPH-TP-1005-02, Issue 2 Testing ESTING This section provides information about system alarms, LOS and AIS response, OCT55 test procedure, and loopback testing. YSTEM LARMS Table 21 provides a summary of the system alarms displayed on the H2TU-C-202 alarm history screens (see “Using the Performance Screens to View Alarm Data”...
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 HDSL2 Standard Option Default configurations [AIS] are shown in boldface type. [AIS]...
LTPH-TP-1005-02, Issue 2 Testing OCT55 T AMI L ATTERN WITH The OCT 55 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 causes the H2TU-C to report ES, SES and UAS errors according to ANSI T1.231-1997.
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 ADC Options in the maintenance terminal Config menu, ADC Options screen (see Table 6 on page 17).
LTPH-TP-1005-02, 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 HDLSL2 circuit (see “SmartJack Test Procedure” on page 52 for additional information).
Testing LTPH-TP-1005-02, Issue 2 The transmit and receive DSX-1 ports have splitting access jacks and miniature 210-series, bridging jacks as shown in Figure 2 on page 4. Connecting one cable between the two bridging jacks and another between the two LINE jacks splits the IN and OUT and creates metallic loopbacks towards both the DSX-1 and the H2TU-C-202.
Testing LTPH-TP-1005-02, Issue 2 A2LB Test Procedures Using the codes listed in Table 23, 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 23. Addressable Repeater Loopback Commands (A1LB, A2LB, A5LB) (Hexadecimal Binary Code Loopback...
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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.
Testing LTPH-TP-1005-02, Issue 2 The Armed mode has an automatic time-out of 120 minutes but this timer is reset to 120 for the following events: • Loopback terminates (manually or time-out) • Query • Alternate query • Far end activate •...
LTPH-TP-1005-02, Issue 2 Appendix A - Specifications A - S PPENDIX PECIFICATIONS Power Line Voltage 0, -185 Vdc CO Supply -48 Vdc nominal (-42.5 to -56.5 Vdc) (See “Power Consumption” “Maximum Power Dissipation” “Maximum Current Drain” on page 54.) Electrical Protection Secondary surge and power cross protection on HDSL2 ports.
Appendix A - Specifications LTPH-TP-1005-02, Issue 2 OWER ONSUMPTION The maximum power consumption and heat dissipation depends on the type of remote units in the system and the CPE power setting. The three most important power parameters of an H2TU-C are its maximum power consumption, its maximum power dissipation and its maximum current drain.
LTPH-TP-1005-02, Issue 2 Appendix A - Specifications TTENUATION Each loop has no more than 35 dB of loss at 196 kHz, with driving and terminating impedances of 135 Ω (see Table 27 below). Table 27. HDSL2 Cable Attenuation Chart Loss at 196 kHz Ω...
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-319 HiGain Management Unit. Some H2TU-C-202 List 3E features are affected when it is under management. Consult the management unit practice for further information (see “Appendix D - Product Support”...
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-202 and a remotely located H2TU-R.
Appendix B - Functional Operation LTPH-TP-1005-02, Issue 2 IMING The low loop wander (0.5 UI max) of an H2TU-C, when used with remote units, allows the circuit to be used in all critical timing applications, including those used to transport Stratum 1 timing. ROUND AULT ETECT...
LTPH-TP-1005-02, Issue 2 Appendix C - Compatibility C - C PPENDIX OMPATIBILITY The HiGain HDSL2 system uses HDSL2 transmission technology as recommended by Bellcore TA-TSY-001210. HiGain HDSL2 complies with GR-63-CORE, TR-TSY-000499, and GR-1089-CORE. The H2TU-C-202 List 3E is compatible with the following T1 repeater shelves and associated equipment: •...
ADC Customer Service Group provides expert pre-sales and post-sales support and training for all its products. ECHNICAL UPPORT Technical assistance is available 24 hours a day, 7 days a week by contacting ADC Wireline Systems Division Customer Service Engineering Group at one of the following numbers: Telephone: 800.638.0031 or 714.730.3222...
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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.
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Appendix D - Product Support LTPH-TP-1005-02, Issue 2 February 28, 2001 H2TU-C-202 List 3E...
LTPH-TP-1005-02, Issue 2 Appendix E - Abbreviations E - A PPENDIX BBREVIATIONS ACON: Auto Conversion of DS1 frame Identifier ADSL: Asymmetric Digital Subscriber Line Transmit AIS: Alarm Indication Signal Intelligent Repeater B8ZS: Bipolar with 8-zero Substitution LAIS: Line Alarm Indication Signal BER: Bit Error Rate LBTO: Loopback Timeout...
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Appendix E - Abbreviations LTPH-TP-1005-02, Issue 2 SDSL. Symmetrical Digital Subscriber Line SES. Severely Errored Seconds SuperFrame SMJK. SmartJack SPRM. Supplemental Performance Report Messaging TLOS: Transmit Loss of Signal UAS: Unavailable Seconds February 28, 2001 H2TU-C-202 List 3E...
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.
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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-1005-02, I OCUMENT SSUE ISO 9001 ´,#U¶6g¨ 1203536 DNV Certification, Inc. Certificated Firm...
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