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ADC HiGain H2TU-C-202 User Manual

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HiGain
HiGain
U
M
SER
ANUAL
L
1E
HiGain Line Unit
H2TU-C-202 List 1E
Part Number: 150-2402-15
CLEI Code: VACH4W4C

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Summary of Contents for ADC HiGain H2TU-C-202

  • Page 1 HiGain HiGain ANUAL HiGain Line Unit H2TU-C-202 List 1E Part Number: 150-2402-15 CLEI Code: VACH4W4C...
  • 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 150-2202-115-04, Revision 4 April 21, 2000 H2TU-C-202 List 1E...

  • Page 5: Table Of Contents

    150-2202-115-04, Revision 4 Table of Contents ABLE OF ONTENTS -Overview ___________________________________________________________________________ 1 Features ..............................1 Compatibility .............................2 Applications ............................2 HiGain Regenerators..........................3 Front Panel __________________________________________________________________________ 4 On-board DIP Switch S1........................6 Installation___________________________________________________________________________ 7 Verification ............................8 Verification without a Downstream Device ................8 Verification with a Downstream Device ................8 Provisioning Requirements ........................9 Provisioning_________________________________________________________________________ 10 Using a Maintenance Terminal ......................10...
  • Page 6 Table of Contents 150-2202-115-04, Revision 4 Remote LOS and AIS Response ..................41 OCT55 Test Pattern with AMI Line Code ..................42 Loopback Operation ........................42 Generic Loopback Commands..................43 Special Loopback Commands................... 45 Manual Loopback Session ....................46 Setting the Loopback Time-out Option (LBTO Switch) ..........46 Loopback Test Procedures ......................
  • Page 7 152-202-115-04, Revision 04 List of Figures IST OF IGURES 1. HDSL2 System Model ..........................3 2. H2TU-C-202 List 1E Front Panel .........................4 3. DIP Switch S1 ...............................6 4. Installing the H2TU-C List 1E into a Shelf ....................7 5. Logon Screen ..............................11 6.
  • Page 8 List of Tables 152-202-115-04, Revision 04 IST OF ABLES 1. Front-Panel Description ..........................5 2. Functions of DIP Switch S1 (default settings are in boldface type) ............. 6 3. Navigational Keys for the Solitaire Maintenance Terminal Screens ............11 4. Logon Screen Menus........................... 12 5.

  • Page 9: Overview

    High bit-rate Digital Subscriber Line 2 (HDSL2). ADC products are fully compliant with the HDSL2 standard. Providing full-rate T1 access using just a single copper pair, HDSL2 is a cost-effective solution that offers an open architecture.

  • Page 10: Compatibility

    Overview 152-202-115-04, Revision 04 • Compatible with 200 and 400 mechanics, high-density shelves • Digital Data Service (DDS) latching loopback • Payload (PL) and HiGain (HG) loopback source identification • Network Management and Administration (NMA) interface • Margin Alarm threshold (MAL) OMPATIBILITY The H2TU-C-202 is designed to mount in 200/400 mechanics, high-density shelves.

  • Page 11: Higain Regenerators

    152-202-115-04, Revision 04 Overview Figure 1. HDSL2 System Model EGENERATORS For applications without regenerators (doublers), the H2TU-C-202 is directly connected to an H2TU-R remote unit by one HDSL2 cable pair. The H2TU-C-202 is compatible with all HiGain H2TU-Rs. For regenerator applications, one to two regenerators may be used in the HDSL2 loop between the H2TU-C and H2TU-R, for instance: •...

  • Page 12: Front Panel

    Front Panel 152-202-115-04, Revision 04 RONT ANEL Figure 2 shows the H2TU-C-202 List 1E 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...
  • Page 13 152-202-115-04, Revision 04 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 Table 2 on page 6 for details.) Status LEDs Solid red when a fuse alarm is present.

  • Page 14: On-Board Dip Switch S1

    Front Panel 152-202-115-04, Revision 04 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.

  • Page 15: 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-202 H iG a in...

  • Page 16: Verification

    Installation 152-202-115-04, Revision 04 ERIFICATION Once the H2TU-C-202 is installed, verify that it is operating properly. To do this, monitor the four status LEDs. 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 1 on page 5 for status LED descriptions.)

  • Page 17: Provisioning Requirements

    152-202-115-04, Revision 04 Installation ROVISIONING EQUIREMENTS Refer to “Provisioning” on page 10 for instructions on configuring and monitoring the H2TU-C-202. After a successful installation, complete the following tasks: Set the date and time (see “Setting Date and Time” on page 13).

  • Page 18: Provisioning

    Provisioning 152-202-115-04, Revision 04 ROVISIONING There are two provisioning methods: • Setting the DIP switch located on the board • Use 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 HDSL2 maintenance screens (Figure 5 on page 11).

  • Page 19: Logon Screen

    152-202-115-04, Revision 04 Provisioning Table 3 summarizes the navigational keys. They are also listed in the onscreen Help menu. Table 4 on page 12 describes the menus. Table 3. Navigational Keys for the Solitaire Maintenance Terminal Screens Function SPACEBAR Cycle through selections. Activate the current setting or choice, or display a menu.
  • Page 20 Help Provides a glossary of terms used in the HiGain HDSL2 maintenance screens, a list of navigational keys, and ADC contact information. April 21, 2000 H2TU-C-202 List 1E...

  • Page 21: Provisioning Tasks

    152-202-115-04, Revision 04 Provisioning 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 accurate data Setting Date and Time Monitor Performance...

  • Page 22: Setting Circuit Id Numbers

    Provisioning 152-202-115-04, Revision 04 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 Rlogon Help -------------------------- Product Information ---------------------------- Unit : H2TU-C...

  • Page 23: Making Changes To The System Configuration

    (Figure 8) allows you to make the following types of system configuration changes: • Standard options (Figure 9 on page • ADC options (Figure 10 on page • Date and time (see “Setting Date and Time” on page • Master clear (see “Clearing the History, Alarm, and Event Log Screens”...

  • Page 24: Configuration Screen - Standard Options (Defaults Shown)

    Provisioning 152-202-115-04, Revision 04 The settings for the LBTO, DS1, and EQL options shown in Figure 9, and the PWRF and FT1 options shown in Figure 10 are read-only; they are set with on-board DIP switch S1. (See “On-board DIP Switch S1” on page Monitor Performance Event Log...
  • Page 25 152-202-115-04, Revision 04 Provisioning Table 5 lists the Config screen Standard Options and describes their available settings. Selections in bold typeface are the factory default settings. Table 5. H2TU-C-202 List 1E Config Screen Standard Options Standard Options Screen Code Settings Description Loopback LBTO...
  • Page 26 Provisioning 152-202-115-04, Revision 04 Table 6 lists the Config screen PairGain Options and describes their available settings. Selections in bold typeface are the factory default settings. Table 6. H2TU-C-202 List 1E Config Screen PairGain Options PairGain Options Screen Code Settings Description Line Power Feed PWRF...
  • Page 27 152-202-115-04, Revision 04 Provisioning Table 6. H2TU-C-202 List 1E Config Screen PairGain Options (Cont.) PairGain Options Screen Code Settings Description Performance Report SPRM The H2TU-R generates Supplemental PRM (SPRM) very second if no Messaging PRM is received from the CPE within 5 seconds of a reset or if an LOS/AIS/OOF condition occurs.
  • Page 28 Provisioning 152-202-115-04, Revision 04 Bipolar Violation Transparency (BPVT) Option. The H2TU-C-202 improves compatibility with Digital Loop Carrier (DLC) feeder applications because of its ability to transmit T1 BPV occurrences between its T1 interfaces. This feature is required to support protection switching in DLC applications. Each DLC terminal must be able to monitor the integrity of its Receive T1 payload and then switch to the protect line when the integrity of the path drops below specific user selected limits.
  • Page 29 152-202-115-04, Revision 04 Provisioning • FCON: This is the forced conversion setting. Table 8 lists the HiGain HDSL2 responses to both the ACON and FCON settings for the CONV option. The responses are identical, except in cases 3 and 4. In these cases, the FCON reply is attempting to force the network (or the far-end PM-NIU) to send ESF.
  • Page 30 Provisioning 152-202-115-04, Revision 04 Table 10. SuperFrame Format Frame Bits SF Number Terminal Framing Bit SuperFrame Signaling Bit Fractional T1 (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 31 152-202-115-04, Revision 04 Provisioning 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 32 Provisioning 152-202-115-04, Revision 04 The unframed AIS pattern that is normally sent towards the network for a CI LOS fault condition must be replaced by the new patterns listed in Table 13 on page 24 when the FT1 loopback option is selected. In addition, the FT1 mode also requires an input AIS pattern to be converted into an unframed 7E output pattern at both ends as shown Table Table 13.

  • Page 33: Configuration Menu - Set To Factory Defaults

    152-202-115-04, Revision 04 Provisioning In all SF environments, the H2TU-R automatically converts a CPE DS1 payload with an embedded RAI signal into an RAI-CI pattern towards the network if the RACI option is enabled (default). Such a conversion affects the payload as described above.

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

    Provisioning 152-202-115-04, Revision 04 Clearing the History, Alarm, and Event Log Screens 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 you have meaningful data thereafter.

  • Page 35: Monitoring System Activity And Performance

    152-202-115-04, Revision 04 Monitoring System Activity and Performance ONITORING YSTEM CTIVITY AND ERFORMANCE The H2TU-C-202 provides two 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 36: Using The Monitor Screen To View System Activity

    Monitoring System Activity and Performance 152-202-115-04, Revision 04 SING THE ONITOR CREEN TO YSTEM CTIVITY Press to view the system diagram. Figure 14 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 37 152-202-115-04, Revision 04 Monitoring System Activity and Performance Table 14. 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 21 on page 44 for a summary of the HiGain HDSL2 loopback codes and activation methods.

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

    Monitoring System Activity and Performance 152-202-115-04, Revision 04 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) or DS1 interfaces (Figure 22 on page...

  • Page 39: H2Tu-C Ds1 25-Hour Performance History

    152-202-115-04, Revision 04 Monitoring System Activity and Performance Monitor Performance Event Log Config Inventory Rlogon Help H2TU-C DS-1 25 Hour History (Page 1 of 9) ------------------------------------------------------------------------------ Time ES-L SES-L UAS-L CV-L PDVS-L ES-P SES-P UAS-P 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15...

  • Page 40: Performance History At The Hdsl2 Interface

    Monitoring System Activity and Performance 152-202-115-04, Revision 04 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 describes the acronyms used in the performance history screens.

  • Page 41: Current Statistics Screens For The Ds1 Interface

    152-202-115-04, Revision 04 Monitoring System Activity and Performance Current Statistics Screens for the DS1 Interface Examples of current statistics screens are shown below. Figure 18 Figure 19 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.

  • Page 42: Current Statistics For Hdsl2 Interface

    Monitoring System Activity and Performance 152-202-115-04, Revision 04 Current Statistics for HDSL2 Interface Figure 20 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...

  • Page 43: Using The Performance Screens To View Alarm Data

    152-202-115-04, Revision 04 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 44: H2Tu-R Ds1 Alarm History Screen

    Monitoring System Activity and Performance 152-202-115-04, Revision 04 Monitor Performance Event Log Config Inventory Rlogon Help H2TU-R DS-1 Alarm History ------------------------------------------------------------------------------ Alarm First Last Status Count RLOS 03/16/00 10:03 04/01/00 12:45 ALARM RAIS TX RAI-CI PRM-NE PRM-FE DBER 04/16/00 07:37 04/21/99 09:29 Press: C(l)ear Alarm History ------------------------------------------------------------------------------...

  • Page 45: Alarm History At The Hdsl2 Interface

    152-202-115-04, Revision 04 Monitoring System Activity and Performance Alarm History at the HDSL2 Interface Figure 23 shows the H2TU-C HDSL2 alarm history, and Table 18 describes the alarms. Monitor Performance Event Log Config Inventory Rlogon Help H2TU-C HDSL2 Alarm History ------------------------------------------------------------------------------ Alarm First...

  • Page 46: Using The Event Log To Track System Events

    Monitoring System Activity and Performance 152-202-115-04, Revision 04 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 47 152-202-115-04, Revision 04 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 48: Testing

    Testing 152-202-115-04, Revision 04 ESTING This section provides information about system alarms, LOS/AIS response, the OCT55 test procedure and loopback testing. YSTEM LARMS Table 20 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”...

  • Page 49: Alarm Option For Digital Loop Carrier (Dlc) Feed

    152-202-115-04, Revision 04 Testing Alarm Option for Digital Loop Carrier (DLC) Feed To improve HiGain HDSL2 compatibility with the switch-to-protect features used in DLC feeder applications, the H2TU-C-202 has an Alarm Pattern (ALMP) option that allows you to select either an AIS or LOS DS1 output payload for the following alarms: •...

  • Page 50: Oct55 Test Pattern With Ami Line Code

    Testing 152-202-115-04, Revision 04 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.

  • Page 51: Generic Loopback Commands

    152-202-115-04, Revision 04 Testing Generic Loopback Commands The HiGain HDSL2 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 52 Testing 152-202-115-04, Revision 04 Table 21. Summary of HiGain HDSL2 Loopback Codes and Activation Methods Method of Activation Loopback Code Description Test Set Craft Port NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C. 4-in-7 NRG1 110000 DSX-1 signal is looped back to the network at the regenerator 1.

  • Page 53: Special Loopback Commands

    152-202-115-04, Revision 04 Testing 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 PairGain Options in the maintenance terminal Config screen (see Table 6 on page 18).

  • Page 54: Manual Loopback Session

    Testing 152-202-115-04, Revision 04 Manual Loopback Session A manual loopback session allows you to select any one of the HiGain HDSL2 loopbacks listed in Table 21 on page 44 with the exception of SmartJack loopbacks, which can only be issued by inband commands. Setting the Loopback Time-out Option (LBTO Switch) Before initiating a loopback session, verify that the Loopback Time-out parameter is set to the desired setting.

  • Page 55: Gnlb Test Procedures

    152-202-115-04, Revision 04 Testing GNLB Test Procedures Figure 27 is a graphical representation of the various loopback configurations with the associated GNLB commands shown. Also, refer to Table 21 on page 44 for a description of these commands. To perform the GNLB loopback test procedure: Have the CO tester send the NREM (3-in-7) inband loopup code for 5 seconds to loop up the H2TU-R.

  • Page 56: A2Lb Test Procedures

    Testing 152-202-115-04, Revision 04 A2LB Test Procedures Using the codes listed in Table 22, 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 HDSL2 regenerators is shown in bold type.
  • Page 57 To avoid this uncertainty, ADC recommends sending unframed IR commands. The H2TU-C is now in logic loopback if the IOR NLOC loopback command was sent. The Time-out Override command or a Loopdown command can override the selection made for the loopback time-out (see “Setting the Loopback Time-out Option (LBTO Switch)”...

  • Page 58: A3Lb And A4Lb Test Procedures

    Testing 152-202-115-04, Revision 04 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). • If all the equipment is to be looped down, disarmed and returned to normal operation, send the disarm inband code 11100 or the ESF-DL code (FF24).

  • Page 59: Appendix A - Specifications

    152-202-115-04, Revision 04 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 52.) Electrical Protection Secondary surge and power cross protection on HDSL2 ports.

  • Page 60: Power Consumption

    Appendix A - Specifications 152-202-115-04, Revision 04 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, its maximum power dissipation and its maximum current drain.

  • Page 61: H2Tu-C-202 Card-Edge Connector

    152-202-115-04, Revision 04 Appendix A - Specifications H2TU-C-202 C EDGE ONNECTOR Figure 28 shows the card-edge connector on the H2TU-C-202. DS1 Ring1 Management bus DSX-1 Out DS1 Tip 1 Factory use only ( - ) Chassis ground* -48 Vdc Alarm Fuse alarm Factory use only Circuit ground...

  • Page 62: Network Management Control Bus

    152-202-115-04, Revision 04 Network Management Control Bus The H2TU-C provides a Management 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. Fuse Alarm Pin 25 on the card-edge connector is a Fuse Alarm that is driven to -48 Vdc through a diode whenever its onboard fuse opens.

  • Page 63: Appendix B - 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 (OPAM) 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.

  • Page 64: Timing

    Appendix B - Functional Operation 152-202-115-04, Revision 04 IMING The low loop wander (0.3 UI max) of an H2TU-C, when used with compatible regenerators and remote units, allows the circuit to be used in all critical timing applications, including those that are used to transport Stratum 1 timing.

  • Page 65: Appendixc - Compatibility

    152-202-115-04, Revision 04 Appendix C - Compatibility 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. T1 R EPEATER HELVES AND ELATED QUIPMENT The H2TU-C-202 List 1E is compatible with the following 200 and 400 mechanics, high-density shelves and enclosures:...

  • Page 66: 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 67: Appendix E - Abbreviations

    152-202-115-04, Revision 04 Appendix E - Abbreviations E - A PPENDIX BBREVIATIONS ACO: Alarm Cut Off GNLB: Generic Loopback ACON: Auto Conversion of DS1 frame ADSL: Asymmetric Digital Subscriber Line AIS: Alarm Indicator Signal H2RU: HiGain HDSL2 Regenerator Unit ALM: Alarm H2TU-C: AMI:...
  • Page 68 Appendix E - Abbreviations 152-202-115-04, Revision 04 OOF: Out Of Frame SDSL: Symmetrical Digital Subscriber Line OPTIS: Overlapped Pulse Amplitude Modulation (PAM) SES: Severely Errored Seconds Transmission with Interlocking Spectra SuperFrame SMJK: SmartJack SPLB: Special Loopback SPRM: Supplemental PRM PDVS: Pulse Density Violation Seconds Payload POTS: Plain Old Telephone Service PRM: Performance Report Messaging...

  • 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 : 152-202-115-04, R OCUMENT EVISION ISO 9001 ´,/^¶63¨ DNV Certification, Inc. Certificated Firm 1215626...

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